Tivoli IBM Tivoli Monitoring for Network Performance

Transcription

1 Tivoli IBM Tivoli Monitoring for Network Performance Version 2 Release 1 Operator Guide SC

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3 Tivoli IBM Tivoli Monitoring for Network Performance Version 2 Release 1 Operator Guide SC

4 First Edition (June 2004) This edition applies to Version 2, Release 1, Modification 0 of IBM Tivoli Monitoring for Network Performance, (Product Number 5698-FNP) and to all subsequent releases and modifications until otherwise indicated in new editions. For Notices, see Notices on page 125. Copyright International Business Machines Corporation All rights reserved. US Government Users Restricted Rights Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

5 Contents Preface v Who should read this manual v Product publications v IBM Tivoli Monitoring for Network Performance library v Related publications vi Accessing publications online vii Ordering publications vii Accessibility viii Contacting software support viii Conventions used in this guide viii Typeface conventions viii Operating system-dependent variables and paths ix Figures xi Chapter 1. Introduction Overview of operator responsibilities Data collection Chapter 2. Signing on Chapter 3. The user interface Navigating the interface Detailed description of the interface Task bar Portfolio Work area Help Chapter 4. Setting user preferences.. 19 Auto Refresh Interval Max Rows of Data Graph Properties Date and Time Chapter 5. Working with performance data The operator toolbar The table actions toolbar Column headers Monitored resources and performance metrics...36 Table footer Chapter 6. Problem determination tools 37 Displaying more detail Displaying data from previous collection periods..40 Running diagnostics Ping command Trace Route command Chapter 7. Network performance views 53 View TCP Stacks TCP Stack Availability and Response TCP Stack Throughput and Traffic Application Availability and Response Connection Availability and Response Connection Throughput and Traffic View UDP Stacks UDP Stack Throughput and Traffic UDP Endpoint Throughput and Traffic View IP Stacks View FTP FTP Sessions FTP Client Transfer Records FTP Server Transfer Records View TN TN3270 Session Availability Sliding-window Response Time Response Time Counts by Time Bucket View HPR and EE HPR Availability and Response HPR Throughput and Traffic EE Availability and Response EE Throughput and Traffic View Interface Data Status Unicast Performance Metrics Multicast/Broadcast Performance Metrics View Adapter Data View Memory Data TCP/IP Statistics CSM Storage Summary CSM Storage Monitoring View Response Time Chapter 8. Monitoring network performance using events Notices Programming interfaces Trademarks Index Copyright IBM Corp iii

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7 Preface Who should read this manual Product publications This manual describes the tasks that operators commonly perform while using IBM Tivoli Monitoring for Network Performance (Tivoli Monitoring for Network Performance). The primary audience for this manual is the network operator who uses Tivoli Monitoring for Network Performance. The network operator is responsible for monitoring the daily operations of the network and is mainly concerned with the health and performance of the network resources being monitored. The operator typically completes the following tasks: v v Monitoring the network for possible performance problems Collecting data that can be used to diagnose and resolve performance problems The operator should be familiar with the following topics: v The z/os operating system and its associated concepts v v z/os Communications Server TCP/IP performance monitoring concepts This section lists publications in the IBM Tivoli Monitoring for Network Performance library and related documents. It also describes how to access Tivoli publications online and how to order Tivoli publications. IBM Tivoli Monitoring for Network Performance library The following documents are available in the IBM Tivoli Monitoring for Network Performance library: v v v v v Planning, Installation, and Configuration for IBM Tivoli Monitoring for Network Performance, SC Provides network systems administrators the information to effectively plan for the introduction of the product into their enterprise. This book also provides the information to install the product into a WebSphere Application Server environment and configure other components in your enterprise to work with the product. IBM Tivoli Monitoring for Network Performance Operator Guide, SC Contains information about tasks that operators commonly perform. IBM Tivoli Monitoring for Network Performance Administrator Guide, SC Contains information about tasks that administrators commonly perform. IBM Tivoli Monitoring for Network Performance Messages and Troubleshooting, SC Contains a catalog of all messages and their explanations, plus additional troubleshooting information to help you diagnose problems. Tuning IBM Tivoli Monitoring for Network Performance, SC Copyright IBM Corp v

8 v v Provides guidance for making IBM Tivoli Monitoring for Network Performance run at peak performance in your environment, available at this Web address: IBM Tivoli Monitoring for Network Performance Readme, GI Contains late-breaking information about installing and using the product. This information corrects and supersedes documentation in the product package. Revised versions of this document might be available at this Web address: IBM Tivoli Monitoring for Network PerformanceVersion 2.1 Warehouse Enablement Pack, Version Implementation Guide for Tivoli Data Warehouse, Version 1.2, SC Describes how to use this warehouse enablement pack to extract data from IBM Tivoli Monitoring database and load it into the Tivoli Data Warehouse database. Related publications The documents listed in this section also provide useful information. IBM Tivoli Monitoring for Network Performance information You can find additional product information on the IBM Tivoli Monitoring for Network Performance Web site: IBM z/os operating systems publications The IBM Tivoli Monitoring for Network Performance monitor component runs on UNIX System Services, which is part of the z/os operating system. You can view the publications that support this product at the following Web site: IBM z/os Communications Server publications Much of the information displayed by the IBM Tivoli Monitoring for Network Performance Web application is retrieved from IBM z/os Communications Server. You can view the publications that support this product at the following Web site: IBM WebSphere Application Server publications WebSphere Application Server hosts the Tivoli Monitoring for Network Performance Web application and provides Secure Sockets Layer (SSL) security for several components. Complete information about WebSphere Application Server is available from the information center installed with the product. You can also view the WebSphere Application Server information center at the following Web site: IBM DB2 publications You can view the publications that support this product on the following Web site: vi IBM Tivoli Monitoring for Network Performance: Operator Guide

9 Tivoli Data Warehouse publications Tivoli Data Warehouse provides the long-term data repository for IBM Tivoli Monitoring for Network Performance. You can view the publications that support this product on the following Web site: NetView Integrated TCP/IP Services Component publications IBM Tivoli Monitoring for Network Performance uses the NetView Integrated TCP/IP Services Component to perform autodiscovery of IP resources in your enterprise. You can view the publications that support this product on the following Web site: Terminology The Tivoli Software Glossary includes definitions for many of the technical terms related to Tivoli software. The Tivoli Software Glossary is available, in English only, at the following Tivoli software library Web site: Access the glossary by clicking the Glossary link on the left pane of the Tivoli software library window. Accessing publications online The product media contains the publications that are in the product library. The formats of the publications are PDF, BookManager, and HTML. To access the publications using a Web browser, open the infocenter.html file. The file is in the appropriate publications directory on the product CD. IBM posts publications for this and all other Tivoli products, as they become available and whenever they are updated, to the Tivoli software information center Web site. Access the Tivoli software information center by first going to the Tivoli software library at the following Web address: Scroll down and click the Product manuals link. In the Tivoli Technical Product Documents Alphabetical Listing window, click the IBM Tivoli Monitoring for Network Performance link to access the product library at the Tivoli software information center. Note: If you print PDF documents on other than letter-sized paper, set the option in the File Print window that allows Adobe Reader to print letter-sized pages on your local paper. Ordering publications You can order many Tivoli publications online at the following Web site: cgibin/pbi.cgi You can also order by telephone by calling one of these numbers: v In the United States: Preface vii

10 v In Canada: In other countries, see the following Web site for a list of telephone numbers: Accessibility Contacting software support Accessibility features help users with a physical disability, such as restricted mobility or limited vision, to use software products successfully. With this product, you can use assistive technologies to hear and navigate the interface. You can also use the keyboard instead of the mouse to operate all features of the graphical user interface. For additional information, see the Accessibility appendix in IBM Tivoli Monitoring for Network Performance Planning, Installation, and Configuration. Before contacting IBM Software Support with a problem, refer to the IBM Software Support site by accessing the following Web address: To access Tivoli support, click the Tivoli support link at the bottom right of the page. If you want to contact IBM Software Support, see the IBM Software Support Guide at the following Web site: The guide provides information about how to contact IBM Software Support, depending on the severity of your problem, and the following information: v v v Registration and eligibility Conventions used in this guide Telephone numbers, depending on the country in which you are located Information you must have before contacting IBM Software Support This guide uses several conventions for special terms and actions, operating system-dependent commands and paths, and margin graphics. Typeface conventions This guide uses the following typeface conventions: Bold v v v Lowercase commands and mixed case commands that are otherwise difficult to distinguish from surrounding text Interface controls (check boxes, push buttons, radio buttons, spin buttons, fields, folders, icons, list boxes, items inside list boxes, multicolumn lists, containers, menu choices, menu names, tabs, property sheets), labels (such as Tip:, and Operating system considerations:) Keywords and parameters in text viii IBM Tivoli Monitoring for Network Performance: Operator Guide

11 Italic v v v Words defined in text Emphasis of words (words as words) New terms in text (except in a definition list) v Variables and values you must provide Monospace v Examples and code examples v v v v File names, programming keywords, and other elements that are difficult to distinguish from surrounding text Message text and prompts addressed to the user Text that the user must type Values for arguments or command options Operating system-dependent variables and paths This guide uses the UNIX convention for specifying environment variables and for directory notation. When using the Windows command line, replace $variable with %variable% for environment variables and replace each forward slash (/) with a backslash (\) in directory paths. The names of environment variables are not always the same in Windows and UNIX. For example, %TEMP% in Windows is equivalent to $tmp in UNIX. Note: If you are using the bash shell on a Windows system, you can use the UNIX conventions. Preface ix

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13 Figures 1. Tivoli Monitoring for Network Performance overview Console Signon window for the Tivoli Monitoring for Network Performance console.6 3. Welcome page with oper1 signed on as operator 7 4. Web-based console parts Task bar details Task Manager details Portfolio details Work area details Help details Auto Refresh Interval User Preferences Max Rows of Data User Preferences Graph Properties User Preferences Date and Time User Preferences Selecting the TCP Stack Throughput and Traffic View from the portfolio Selecting the reorder columns action TCP Layer Stack Throughput and Traffic View with filter row Filter options for data columns Edit sort criteria IP Layer Stack Throughput and Traffic View Details for IP Layer Stack Throughput and Traffic View Graphing example using the IP Layer Stack Throughput and Traffic View Graphing data with the Graph Metrics button Overriding graph properties Displayed graph for IP Layer Stack Throughput and Traffic View Displayed graph, without all properties Saving a favorite graph Favorite Graphs Ping command options Trace Route command options TCP Stack Availability and Response TCP Stack Throughput and Traffic Application Availability and Response Connection Availability and Response Connection Throughput and Traffic UDP Stack Throughput and Traffic UDP Endpoint Throughput and Traffic IP Stack Throughput and Traffic FTP Sessions FTP Server Transfer Records FTP Client Transfer Records FTP Server Transfer Records TN3270 Session Availability Sliding-window Response Time Response Time Counts by Time Bucket HPR Availability and Response SNA Links view HPR Throughput and Traffic EE Availability and Response EE Throughput and Traffic Port Details view Status Unicast Performance Metrics Multicast/Broadcast Performance Metrics Port Status Utilization and Throughput for a Selected OSA Adapter Port Ethernet Throughput for a Selected OSA Adapter Port TCP/IP Statistics CSM Storage Summary CSM Storage Monitoring Response Time Metrics Copyright IBM Corp xi

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15 Chapter 1. Introduction IBM Tivoli Monitoring for Network Performance monitors the performance of networks and systems in your enterprise. Performance data from all monitored systems is stored in a central database. This data is displayed by the Tivoli Monitoring for Network Performance Web application and is also used as input for report generation using Tivoli Data Warehouse. Tivoli Monitoring for Network Performance meets your daily tactical needs as well as your long-term strategic systems management goals, providing an effective way to gain control of mission-critical network resources, performance issues, and workload distributions. Tivoli Monitoring for Network Performance provides for the timely analysis of performance related metrics such as response time, traffic flow, and system workload. Using the Tivoli Monitoring for Network Performance Web application, operators can monitor the performance of the network in an effort to anticipate problems and resolve them before they occur. The performance data can be used to detect bottlenecks and other potential problems, which eliminates the need for network systems programmers to manually scan through extensive amounts of performance data. The environment in which this product operates is shown in Figure 1 on page 2. Copyright IBM Corp

16 Figure 1. Tivoli Monitoring for Network Performance overview 2 IBM Tivoli Monitoring for Network Performance: Operator Guide

17 As shown in Figure 1 on page 2, there are three users of Tivoli Monitoring for Network Performance: Network systems programmer The network systems programmer is the overall administrator for Tivoli Monitoring for Network Performance and is thus responsible for configuring and deploying the product. This user is the primary focus of the IBM Tivoli Monitoring for Network Performance Administrator Guide. Capacity planner The planner is responsible for understanding the extent to which network resources are being used, with the goal of anticipating the need to allocate resources and distribute workload. Capacity planners prepare reports containing resource usage and trends using the Crystal Reporting product. How to view reports is documented in the Tivoli Data Warehouse documentation. Reports available with Tivoli Monitoring for Network Performance are documented in the IBM Tivoli Monitoring for Network Performance Administrator Guide. Network operator The operator is responsible for the daily operations of the network. This user is mainly concerned with the health of the network resources being monitored. This user is the primary focus of this manual. If you need additional information about the components of this product, refer to the IBM Tivoli Monitoring for Network Performance: Planning, Installation, and Configuration. Overview of operator responsibilities Data collection As an operator, your responsibilities include: v v Monitoring the network for possible performance problems Collecting data that can be used by the network systems programmer to diagnose and resolve performance problems Tivoli Monitoring for Network Performance collects performance data and stores it in a central database for display by the Tivoli Monitoring for Network Performance Web application. The network systems programmer specifies the categories of performance data to be collected (such as FTP, IP, or TCP) when defining the monitoring characteristics for each of the monitors. The user interface is organized to reflect the different categories of performance data that you can view. The monitor collects many different pieces of data (metrics) for each category. For example, the monitor collects more than a dozen performance metrics for each z/os TCP/IP stack being monitored. Each row of data that is displayed in the user interface tables represents a resource, connection, or session that is being monitored. Some of the fields are used to uniquely identify the entity that is being monitored. For example, the IP address, system name, and sysplex name are used to uniquely identify a z/os TCP/IP stack. The remaining data directly relate to the health and performance of the resources, connections, or sessions being monitored. For example, if the network systems programmer is collecting TCP performance data, the monitor collects up to 15 Chapter 1. Introduction 3

18 metrics related to the performance of the TCP layer for each IP stack being monitored. For each of these metrics, the network systems programmer can optionally provide a threshold value. When the monitor collects performance data, each metric is compared to the threshold value if one was specified. If the value of a metric crosses its associated threshold, a red error indicator is displayed next to that value when the Tivoli Monitoring for Network Performance user interface displays the performance data. The network systems programmer also specifies when and how often data are collected. For example, the monitoring characteristics might be specified to collect performance data every 15 minutes, from 8:00 a.m. to 5:00 p.m., Monday through Friday. For most categories of data, the monitor initiates data collection according to a specified schedule as described above. However, for FTP and TN3270 Server Sessions data, the data are provided to the monitor as events occur. As a result, FTP and TN3270 Server Sessions performance metrics are updated as the monitor receives notification of the changes. Each monitor can collect performance data from the system where it is installed. In addition, monitors can be configured to collect performance data from other resources with IP addresses in your enterprise. All of this data is stored in the central database, making it accessible from the Tivoli Monitoring for Network Performance user interface. To summarize, the network systems programmer determines: v v Which resources to monitor What types of data to collect v How often to collect the data This directly affects the data that is available to the network operator when viewing the Tivoli Monitoring for Network Performance user interface. 4 IBM Tivoli Monitoring for Network Performance: Operator Guide

19 Chapter 2. Signing on Before you can sign on to the Tivoli Monitoring for Network Performance Web application, you must have a user name and password. In the Tivoli Monitoring for Network Performance environment, each user name is associated with one of two roles: Operator or Administrator. v v Operator The operator role is restricted to only the tasks that are used to monitor network resources. Operators cannot set run-time preferences, or configure or manage monitors. Administrator An administrator has access to all of the functions that the operator can access. In addition, administrators can set run-time preferences, and configure and manage monitors. Regardless of role, you can sign on from more than one Web browser using a single user name. To sign on to the Web-based console, do the following: 1. Open your Web browser and point it to the following address: where: <host_name> Is the fully qualified host name of the machine where the WebSphere Application Server is running. <https_port> Is the HTTPS Server port number defined when the Tivoli Monitoring for Network Performance Web application was installed. Ask your system administrator for the port number to specify. The Console Signon window is displayed, as shown in Figure 2 on page 6: Copyright IBM Corp

20 Figure 2. Console Signon window for the Tivoli Monitoring for Network Performance console 2. Enter your user name and password. Passwords are encrypted for increased security. Do not use passwords with double-byte characters because some systems do not have an input method for double-byte character sets, and most Web browsers do not allow you to enter double-byte characters in password fields. The Administrator Full Access check box is for user names that are associated with the Administrator role. This check box is ignored when you sign on with operator authority. 3. Click OK to sign on. Figure 3 on page 7 shows the Tivoli Monitoring for Network Performance Welcome page. 6 IBM Tivoli Monitoring for Network Performance: Operator Guide

21 Figure 3. Welcome page with oper1 signed on as operator Figure 3 shows the Tivoli Monitoring for Network Performance Welcome page. The portfolio is displayed on the left side of the page. The user name and associated role are displayed above the portfolio. The work area is located to the right of the portfolio and includes a title bar that contains the name of the view that is currently displayed in the foreground. There is only one work area per page. This is where your primary interaction with the application occurs. For a more detailed description of the components of the interface and how to use them, refer to Chapter 3, The user interface, on page 9. Chapter 2. Signing on 7

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23 Chapter 3. The user interface The Tivoli Monitoring for Network Performance Web application is a browser-based interface that you can use to monitor the resources in your network. The following sections describe the parts of the user interface. Figure 4 identifies some of the more prominent parts of the interface. Figure 4. Web-based console parts The parts of the interface are: Banner The banner is displayed at the top of the interface. It contains the product name and logo. Task bar Immediately below the banner is the task bar that extends across the interface. The task bar displays an icon for each open task. Portfolio The portfolio is displayed vertically on the left side of the interface. It contains the list of tasks that the operator can access. Work area The work area is located to the right of the portfolio and includes a title bar that contains the name of the task that is currently displayed in the foreground. This is where your primary interaction with the application occurs. Copyright IBM Corp

24 Help Help is provided by the Task Assistant and the Field Description Assistant. When opened, the Task Assistant is displayed to the right of the work area, and the Field Description Assistant is displayed on the left side of the work area. The Task Assistant provides an overview followed by detailed help for the buttons, actions, and input fields displayed in the work area. The Field Description Assistant provides help for input fields and buttons displayed in the work area. Navigating the interface For greatest efficiency, you should navigate through Tivoli Monitoring for Network Performance using the buttons that are part of its user interface, rather than using the browser navigation buttons (Back, Forward, Refresh, Stop) or actions (such as Print). You get inconsistent results if you use the browser buttons and actions. Some of the action buttons in the user interface (such as printing) are also available as selectable actions by right-clicking in a view. Detailed description of the interface This section provides detailed descriptions of each of the areas of the interface. Task bar Figure 5 shows the parts of the task bar: Figure 5. Task bar details To sign off from the current session and return to the Console Signon window shown in Figure 2 on page 6, click the Sign Off icon (the right-most icon on the task bar). You need to click this icon to sign off; closing the browser does not sign you off. 10 IBM Tivoli Monitoring for Network Performance: Operator Guide

25 The list of open tasks is displayed horizontally in the task bar just above the portfolio and work area. When you open a task from the portfolio, it is displayed in the work area and an icon representing that task is added to the task bar. In Figure 5 on page 10, the TCP/IP Statistics task is displayed in the work area and is represented by an icon in the task bar. You can display an open task in the work area by clicking its icon in the task bar. You can close a task by clicking the Close Task icon on the title bar of the view in the work area. When you close a task, the icon representing that task is removed from the task bar. You can also manage and navigate tasks using the Task Manager. Click the Show all tasks icon (the left-most icon on the task bar) to view the Task Manager and a list of open tasks that is displayed in the work area, as shown in Figure 6. Figure 6. Task Manager details With the Task Manager, you can switch from one task to another by selecting a task and then clicking Switch Task. You can also end tasks by selecting a task and then clicking End Task. The End Task button in the Task Manager and the Close Task icon in the work area provide the same function. Chapter 3. The user interface 11

26 Portfolio Figure 7 shows the portfolio with the entire task list expanded: Figure 7. Portfolio details The portfolio lists the tasks that an operator can perform. The majority of the tasks allow you to display performance data for resources in your environment. You can also run diagnostics, view favorite graphs, and set user preferences. Related sets of tasks are organized into task groups. When you open the Web application, the portfolio task groups are collapsed. You can expand one or more of the groups. Figure 7 shows all of the task groups in the portfolio expanded. The role (Administrator or Operator) and user name is displayed above the portfolio. Some of the task views contain data that take up much of the horizontal space in the work area. To view more data in the work area, click the Hide Task List icon to hide the portfolio. This icon works as a toggle. Click the Show Task List icon to view the portfolio again. You can also resize the work area by positioning the cursor on the border between it and the portfolio and then dragging it to the left or right when the cursor changes to the double-pointed arrow. The portfolio contains the following task groups. These tasks and the information associated with them are described in more detail in Chapter 7, Network performance views, on page 53. View TCP Stacks Use these tasks to display the following data for TCP stacks in your system: 12 IBM Tivoli Monitoring for Network Performance: Operator Guide

27 v Availability and response time data for TCP stacks, applications, and connections v Throughput and traffic data for TCP stacks and connections View UDP Stacks Use these tasks to display throughput and traffic data for UDP stacks and endpoints. View IP Stacks Use this task to display throughput and traffic data for IP stacks. View FTP Use these tasks to display data about FTP sessions and FTP client and server transfers. In the FTP Sessions task view, you can further display a view of the transfer records that are associated with a specific FTP session. View TN3270 Use these tasks to display the following TN3270 session data: v v Session availability Response time v Response time counts by time bucket View HPR and EE Use these tasks to display performance data for the following components of your network: v High-Performance Routing (HPR) Rapid Transfer Protocol (RTP) connections (or pipes) where either the local control point (CP) or the remote CP resides on a z/os system image v Enterprise Extender links where either the local IP address or the remote IP address for the EE link resides on a z/os system image In the HPR RTP Connections Availability and Response view, you can further display a view of the information from the Route Selection Control Vector (RSCV), which describes the path through the APPN network that the selected HPR session has taken. In the Enterprise Extender Link Availability and Response view, you can further display a view of the same table that is displayed after you select the HPR Availability and Response task in the portfolio. However, when you access the table from this view, only data for the selected enterprise extender link are displayed. In the Enterprise Extender Link Throughput and Traffic view, you can further display a view of the detailed information for the port that is associated with the selected enterprise extender link. View Interface Data Use these tasks to display interface data such as: v v Status of z/os IP interfaces Performance data for network traffic to and from unicast addresses on the z/os IP interfaces v Performance data for network traffic to and from multicast and broadcast addresses on the z/os IP interfaces View Adapter Data Use these tasks to display the status of Open Systems Adapter (OSA) adapters in your environment. Chapter 3. The user interface 13

28 From the Adapter Data view, you can also display the following detailed information: v The processor utilization and throughput for a specific OSA adapter port v The Ethernet throughput for a specific OSA adapter port View Memory Data Use these tasks to view data related to storage, such as: v TCP/IP storage used by each z/os TCP/IP stack v Communications Storage Manager (CSM) buffer pools View Response Time Use this task to display response time metrics for the resources you are monitoring. Run Diagnostics Use these tasks to issue Ping and Trace Route commands from a z/os system where the monitor is running. You can use these commands to diagnose performance and availability problems for resources in your environment. View Favorite Graphs Use this task to view previously saved graphs. Set User Preferences Use these tasks to set user preferences. You can specify global default values for how often data are refreshed, the maximum number of rows that are displayed per table, and various preferences related to graphing. You can override these global default values for each task, as described in Chapter 4, Setting user preferences, on page 19. From User Preferences, you can also specify the time zone, and date and time formats. The values for time zone, and date and time formats are global and cannot be overridden for each task. See Chapter 4, Setting user preferences, on page 19 for more information about these preferences. Work area Figure 8 on page 15 shows the parts of the work area: 14 IBM Tivoli Monitoring for Network Performance: Operator Guide

29 Figure 8. Work area details The largest area in the interface is the work area. It is located to the right of the portfolio (when the portfolio is displayed) and includes a title bar that contains the name of the task that you are currently viewing. This is where your primary interaction with the application occurs. As noted, to display more information in the work area, you can resize the work area by positioning the cursor on the border between it and the portfolio and then dragging the border to the left or right when the cursor changes to the double-pointed arrow. Or you can hide the portfolio to display more information in the work area. Tivoli Monitoring for Network Performance displays tables of performance data in the work area. Each table contains information related to the performance of one or more resources, connections, or sessions in your network. See Chapter 5, Working with performance data, on page 27 for more information on tables and working with the data in them. Help Figure 9 on page 16 shows the parts of the help: Chapter 3. The user interface 15

30 Figure 9. Help details There are two kinds of help available in the interface: Task Assistant The Task Assistant provides detailed help for the information that is displayed in the work area. A general description of the task is provided, followed by a detailed description of each field, button, and icon displayed in the work area. To open the Task Assistant, click the Show or Hide Task Assistant icon (?) on the title bar of the work area. To close the Task Assistant, click the same icon. The following features are provided as part of the Task Assistant: Table of Contents Click the Table of Contents icon to view the Task Assistant table of contents. The Table of Contents icon works as a toggle; click it again to hide the table of contents. Topic Index The Task Assistant also provides a searchable index to the help. The Topic Index icon works as a toggle to display or hide the index. Message Index The message index provides help for messages. It also has a search facility. The Message Index icon works as a toggle to display or hide the index. Search The Task Assistant search facility provides an easy way to search 16 IBM Tivoli Monitoring for Network Performance: Operator Guide

31 the Task Assistant for a particular string of characters. The Search icon works as a toggle; click the icon to display or hide the Find field. Field Description Assistant The Field Description Assistant (FDA) provides field-level help. It displays help for buttons and input fields as the user tabs from field to field. You open and close this help by clicking the FDA icon (i) in the title bar of the work area. Field description help is displayed for the selected field only. To see the help for the next field, tab forward or select the field with the mouse. Chapter 3. The user interface 17

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33 Chapter 4. Setting user preferences Auto Refresh Interval Tivoli Monitoring for Network Performance provides a set of user preferences that are associated with each user name. User preferences are global default values that apply to the data displayed on all views. When you open the User Preferences for the first time, you see IBM-supplied values provided for each of the user preferences. As you become more familiar with the product, you can modify the user preferences to better suit your needs. You can view or modify the following user preferences from the portfolio by clicking Set User Preferences --> User Preferences: v Auto Refresh Interval v Max Rows of Data on page 20 v Graph Properties on page 21 v Date and Time on page 24 In some cases, the global default values might not be sufficient for a particular task. For example, it might be sufficient to specify a global default value of 100 for the maximum number of rows of data that are displayed in a table. However, this global default value might not be sufficient when displaying data on the Connection Availability and Response Time view. It might be more useful to display a maximum of 200 rows of data when displaying connection data. This is a case where you would want to override the global value in User Preferences with a value specific to the Connection Availability and Response time view. You can override Auto Refresh Interval, Max Rows of Data, and Graph Properties at the task level. However, Date and Time settings apply to all views, and cannot be overridden at the task level. Any changes you make are saved and available to you the next time you sign on to the Web application. Click the tabs on the left side of the work area to view each set of user preferences. The following buttons at the bottom of the User Preferences view apply to all of the user preferences: v Click OK to save all changes and exit User Preferences. v v v Click Apply to save all changes and keep User Preferences open so that you can make additional changes. Click Restore Defaults to replace the current values in User Preferences with the IBM-supplied values. Click Cancel to exit User Preferences without saving your changes. Use this task to set a global default value to automatically refresh data at a user-defined interval. If you select the Enable Auto Refresh check box, data are automatically refreshed unless this option is overridden at the task level. To set the global default value so that views are not automatically refreshed, do not select this check box. Copyright IBM Corp

34 The global value for Auto Refresh Interval can be overridden by using the Enable or Disable Auto Refresh button that is available on each view where data are displayed in tables. This local override applies only to the view on which the button was clicked. If you choose to automatically refresh data, the values in the Minutes and Seconds fields are used to determine the refresh interval. The first time that you use this task after the product is installed, the IBM-supplied default values are shown in the view. By default, the Enable Auto Refresh check box is not selected. The IBM-supplied value for the automatic refresh interval is 5 minutes. If the IBM-supplied values are not sufficient, you can enter new values as the global default values. Figure 10 shows the IBM-supplied values for Auto Refresh Interval. Figure 10. Auto Refresh Interval User Preferences Max Rows of Data Use this task to set the global default value for the maximum number of rows that are retrieved from the database and displayed for each table. The IBM-supplied value for the Maximum Number of Rows field is 100. If this value is not sufficient, you can enter a new value as the global default value. 20 IBM Tivoli Monitoring for Network Performance: Operator Guide

35 You can override the global default value for a specific task by typing a number in the Maximum Number of Rows field on the view where the data are displayed. Figure 11 shows the IBM-supplied value for Max Rows of Data. Figure 11. Max Rows of Data User Preferences Graph Properties Use this task to specify global default values to be used when generating graphs. If the IBM-supplied values are not sufficient, you can enter new values as the global default values. You can override the default graph properties specified in User Preferences by clicking Graph Properties while a graph is displayed. Figure 12 on page 22 shows the IBM-supplied values for Graph Properties. Chapter 4. Setting user preferences 21

36 Figure 12. Graph Properties User Preferences You can modify the following global default values for graphing: Graph Threshold and Rearm Select one or both of the following check boxes to display the threshold and rearm values associated with each graphed metric. v Display Threshold v Display Rearm By default, the IBM-supplied value for Display Threshold is selected and the IBM-supplied value for Display Rearm is not selected. Graph Type The Use logarithmic scale for Y axis in graph check box specifies whether metric values are graphed on the Y axis using a logarithmic scale. When graphing metrics with values whose magnitude vary significantly, it might be desirable to graph the metric values on the Y axis using a logarithmic scale. A logarithmic scale supports only metric values that are greater than zero because the logarithmic value of a number less than or equal to zero is undefined. If you specify a logarithmic scale, any metric values that are less than or equal to zero are not graphed. Any metric values that approach zero may not be graphed depending on the type of graph specified. 22 IBM Tivoli Monitoring for Network Performance: Operator Guide

37 When the check box is selected, graphed data are displayed with a logarithmic scale for the Y axis. If the check box is not selected, graphed data are displayed with a linear scale for the Y axis. By default, the IBM-supplied value for the Use logarithmic scale for Y axis in graph check box is not selected. The Display data in table format check box specifies whether data are displayed as a table or as a graph. If the check box is selected, data are displayed in a table. If the check box is not selected, the following list of graph types is displayed: Line Draws each series of performance metrics as connected points of data. Stacked Area Draws each series of performance metrics as connected points of data and fills in below the points. Each series is placed on top of the preceding series to show the area relationships between each series and the total. Area Draws each series of performance metrics as connected points of data and fills in below the points. Each series is layered over the preceding series. Stacked Bar Draws each series of performance metrics as a portion of a stacked bar cluster. The number of clusters is the number of points in the data. Bar Draws each series of performance metrics as a bar in a cluster. The number of clusters is the number of points in the data. The IBM-supplied value for graph type is Line and the Display data in table format check box is not selected. Graph Colors To specify the color for the graph title or the graph background, do these steps: 1. Click the plus sign (+) adjacent to the Graph Title Color or Graph Background Color fields. 2. A color chooser is displayed. 3. Use either of the following methods to choose the new color: v Choose one of the basic colors by clicking a colored block in the Choose from Basic Colors section of the color chooser. v Choose a custom RGB color by typing numeric values in the Red, Green, and Blue (RGB) fields in the Choose Custom RGB Color section of the color chooser, then click Preview RGB. Your choice is previewed in the large square at the right edge of the color chooser. 4. To close the color chooser, click OK to save the last color that you selected and exit. Click Cancel to close the color chooser without saving your changes. The IBM-supplied values are black for Graph Title Color and light yellow for Graph Background Color. Graph Size Enter the global values for the height and width of each graph in the Chapter 4. Setting user preferences 23

38 Date and Time Height and Width fields. The IBM-supplied values set a height of 800 pixels and a width of 600 pixels for the graph size. You can set a maximum value of 2000 pixels for height and a minimum value of 400 pixels for width. Use this task to specify the time zone and formats for date and time. Date and time preferences are used when displaying time stamps. The first time that you use this task, the IBM-supplied default values are shown in the view. If the IBM-supplied values are not sufficient, you can enter new values as the global default values. Figure 13 displays this task. Figure 13. Date and Time User Preferences To use the Date and Time task, specify the following information: Selected Time Zone The Selected Time Zone field contains your current time zone settings. This field includes the GMT offset, followed by the time zone short name, time zone long name, and time zone identifier. All time stamps are displayed with respect to this time zone. 24 IBM Tivoli Monitoring for Network Performance: Operator Guide

39 Time Zone With the Time Zone drop-down list, you can specify the time zone used when displaying time stamps. Choose the appropriate time zone from the drop-down list. A time zone selection contains the following information: v The GMT offset (the number of hours ahead of (+) or behind (-) Greenwich Mean Time) v The time zone short name (for example, EST for Eastern Standard Time) v A time zone identifier (for example, America/NY) The IBM-supplied value for Time Zone is the time zone of the locale in which the Web browser is running. Date Format With the Date Format drop-down list, you can specify the format of the date. This format is used when displaying dates on the user interface. Select a date format from the drop-down list. The IBM-supplied value for date format is the date format of the locale in which the Web browser is running. The Date field to the right of the drop-down list contains an example of the current date displayed in the chosen format. Time Format With the Time Format drop-down list, you can specify the format of the time. This format is used when displaying times on the user interface. Select a time format from the drop-down list. The IBM-supplied value for time format is the time format of the locale in which the Web browser is running. The Time field to the right of the drop-down list contains an example of the current time displayed in the selected format. Display time followed by date The Display time followed by date check box specifies whether the date is positioned before or after the time when displaying time stamps. If the check box is selected, then the time precedes the date (for example, 11:54:25 12/25/2003). If the check box is not selected (the IBM-supplied value), then the date precedes the time (for example, 12/25/ :54:25). Chapter 4. Setting user preferences 25

40 26 IBM Tivoli Monitoring for Network Performance: Operator Guide

41 Chapter 5. Working with performance data Tivoli Monitoring for Network Performance enables you to monitor network performance by providing access to performance data which is collected by the monitors in your environment. The network systems programmer determines which resources to monitor, what types of data to collect, and how often to collect the data. Operator interaction with the performance data occurs in the work area. The format and layout presented in the work area is common across all views that contain data, except for Run Diagnostics (see Running diagnostics on page 47), View Favorite Graphs (see Figure 27 on page 47), and Set User Preferences (see Chapter 4, Setting user preferences, on page 19). When you select a task from the portfolio, the data are displayed in the work area. The first view that is displayed is a high-level view that contains several performance metrics. The performance metrics are displayed in table format where each row in the table represents a unique resource, connection or session being monitored. The data displayed on the high-level views represent the most recent data collected. Each view contains data for each of the systems being monitored. Because the collection criteria could be different on each of the monitored systems, the time stamps and frequency of data collection for each row in the table will most likely differ. When performing problem determination, it is often necessary to examine performance data from previous collection periods. You can access data from previous collection periods using the Details and Graphing functions. These functions are described in Chapter 6, Problem determination tools, on page 37. The remainder of this chapter describes the common components of the high-level views and how you can manipulate the data tables. Figure 14 on page 28 shows the table that is displayed in the work area when you select TCP Stack Throughput and Traffic from the portfolio. This figure serves as an example in the following description of the common components of the high-level views. The data specific to each view is described in detail in Chapter 7, Network performance views, on page 53. Copyright IBM Corp

42 Figure 14. Selecting the TCP Stack Throughput and Traffic View from the portfolio The operator toolbar The title bar of the work area contains the name of the task selected from the portfolio, the Show/Hide Field Descriptions, Show/Hide Task Assistant, and Close Task icons. Immediately below the title bar in the work area is the name of the high-level view that you are viewing. The task name and the high-level view name are often the same. In the example shown in Figure 14, the task name is TCP Stack Throughput and Traffic and the view name is TCP Stack Throughput and Traffic View. The Maximum Number of Rows field is available on all views that contain table data. This field determines the maximum number of rows that are retrieved from the database and displayed for a table. If you have not changed the value in this field, then the global default value specified in the Maximum Number of Rows field in User Preferences is used. If you change the value of this field, the table is refreshed and the new value is used for all subsequent displays of the table. You can restore this value to the global default value specified in User Preferences by clicking Default. You can use the buttons on the operator toolbar to navigate to additional views to display more detail or display data from previous collection periods in graph or table format. Additionally, you can refresh the data that is currently displayed on the view and control the automatic refresh setting for this view. Throughout the product interface, you will notice that some buttons are always available. For example, the Refresh Now button and the Enable Auto Refresh 28 IBM Tivoli Monitoring for Network Performance: Operator Guide

43 button are always available. However, the Details and Graph Metrics button are available only when one row in the table is selected. And the Graph Multiple Resources button is available only when multiple rows in the table are selected. As shown in Figure 14 on page 28, the following functional buttons are available from the operator toolbar. Details The table actions toolbar Click Details to display detailed information for the selected row of data. This button is available only when you have selected one row of data. The button is not available when you have selected either no rows or multiple rows. Whenever this button is available, it is also included in the drop-down list of operator actions in the Table Actions Toolbar. The Details view is discussed later in this chapter. Graph The Graph Metrics button and the Graph Multiple Resources button allow you to display data from previous collection periods in graph or table format. When one of these buttons is available, it is included in the drop-down list of operator actions in the Table Actions Toolbar. If you have not selected any rows in the table, then neither of the graphing buttons is available. If you have selected only one row, the Graph Metrics button is available for you to display one or more metrics for a specific resource. If you have selected more than one row, the Graph Multiple Resources button is available for you to graph one metric across multiple resources. You can graph data for 10 or fewer resources. Refresh Now Click Refresh Now to refresh the data on this view. When the view refreshes, the data are retrieved from the database and the view is completely recreated. If any of the rows in the table were selected before the view was refreshed, the rows are not selected after the refresh has completed. Enable or Disable Auto Refresh Click Enable or Disable Auto Refresh to enable or disable the auto refresh function for this view. This button overrides the Enable Auto Refresh setting that you specified in User Preferences. If auto refresh is available, the values in the Minutes and Seconds fields in User Preferences are used to determine the refresh interval. As shown in Figure 14 on page 28, the table actions toolbar provides a set of functions that you can use to manipulate the data in the table so it is organized and displayed to best meet your needs. This toolbar contains a set of icons followed by the Select Action drop-down list. The Select Action drop-down list contains the complete list of actions that you can take. The icons are a subset of the actions in the drop-down list and are the more commonly used actions. If you specify an action by clicking an icon or button, the action occurs immediately. However, if you specify an action by clicking an entry in the drop-down list, you must click Go before the action occurs. These actions apply only to the view that you are currently viewing. Any actions that you take to manipulate the data are saved and used for all subsequent displays of the table and are available the next time you sign on to the Web application. Chapter 5. Working with performance data 29

44 The Select Action drop-down list is separated into two sections: Operator Actions and Table Actions. The Operator Actions section contains the list of available operator actions that are discussed in The operator toolbar on page 28. Two additional operator actions are provided in the Operator Actions section of the Select Action drop-down list: Reorder Columns When you display a view for the first time, the table data are displayed in the default order provided by IBM. With the Reorder Columns action, you can modify the default order of the fields. Use this action to move columns to the left or to the right from their current position in the table. Figure 15 shows the view that is displayed when you select the reorder columns action. Figure 15. Selecting the reorder columns action Hide Thresholds Crossed Column or Show Thresholds Crossed Column Use this action to hide or display the Thresholds Crossed column. The Thresholds Crossed column is provided on all views that contain one or more metrics that can have associated threshold values. If you hide this column, you might have to scroll horizontally to look for metrics whose thresholds have been crossed. 30 IBM Tivoli Monitoring for Network Performance: Operator Guide

45 The Table Actions section of the Select Action drop-down list contains the actions that you can apply to tables. If you select an action from the drop-down list, click Go to complete the action. The following actions are available by clicking the associated icon or entry in the drop-down list. Select All and Deselect All Use these actions to select all rows in the displayed table or clear all current selections in the displayed table. Show Filter Row or Hide Filter Row Use these actions to show or hide the filter row in the displayed table. With the filter row, you can specify filter values for one or more columns of data to filter. When Show Filter Row is selected, the filter row is displayed below the column headings. The word Filter appears in each column where a filter value has not been defined. If a filter value has been defined, a check box followed by the filter value is displayed in the column. The check box activates or deactivates the defined filter for that column. When you initially define a filter, the filter is activated and the check box is selected. To deactivate the filter, click the check box (the check box is cleared when the filter is inactive). Hiding the filter row has no effect on whether the filters are active. Figure 16 on page 32 shows the TCP Layer Stack Throughput and Traffic View with the filter row shown. Chapter 5. Working with performance data 31

46 Figure 16. TCP Layer Stack Throughput and Traffic View with filter row You can specify a filter for any column of data. Filtering the data in the table decreases the number of rows that are displayed in the table, allowing you to focus on a specific set of resources being monitored. For example, it might be useful to filter on System Name to display only the resources for a specific z/os system being monitored. Click the word Filter in the System Name column to see the filter options displayed in Figure 17 on page IBM Tivoli Monitoring for Network Performance: Operator Guide

47 Figure 17. Filter options for data columns You create the filter criteria by selecting a condition and value. Filtering conditions and values are specific to the type of data that you are filtering. In the example shown in Figure 17, filtering is done on System Name, which is a text field. As a result, the choices available from the Condition drop-down list are specific to text data and the filter value is a text value. When specifying the filter criteria for numeric data, the conditions are specific to numeric data and the filter value is numeric. For example, you can filter on all numeric values greater than 100. You can also filter data by time stamp. When specifying filter criteria for time stamps, you can filter data before or after a specified date and time or you can specify a date and time range. Clear All Filters Use this action to remove all existing filters. This action does not affect whether the filter row is displayed. If the filter row is currently displayed, then the value for each column in the filter row changes to Filter. Edit Sort Use this action to select up to three columns to be sorted in the table. You can select either an ascending or descending sort for each column. When you select the Edit Sort option, the sort criteria is displayed below the column headers as shown in Figure 18 on page 34. Chapter 5. Working with performance data 33

48 Figure 18. Edit sort criteria Clear All Sorts Use this action to remove any existing column sorting order. By default, the data in the table is sorted in descending order using the Thresholds Crossed field as the primary sort criteria. A secondary sort is done in descending order using the Collection Time field. This causes the most recent potential problems to be displayed at the top of the table. If you clear all sorts, the default sort criteria are removed and the most recent potential problems are not displayed at the top of the table. The caret (^) character that is displayed after each field name provides a quick sort function. If you do a quick sort, the existing sorting criteria is cleared and the data in the table is sorted in ascending order of the selected field. Collapse Table or Expand Table Use this action to collapse the current table so that no rows are shown or to expand the current table to display all of its rows. This action does not affect whether the filter row is displayed. Enable Inline Action Bar or Disable Inline Action Bar Use this action to enable or disable the inline action bar. The inline action bar contains the Select Action drop-down list and the column headings. 34 IBM Tivoli Monitoring for Network Performance: Operator Guide

49 Column headers The inline action bar is useful when your table contains several rows of data and you have selected a row of data and can no longer see the column headings and Select Action drop-down list. When you enable the inline action bar after selecting one or more rows, the column headings are inserted immediately above the row that is farthest from the top of the table. There must be at least two rows that are not selected between the location of the inline action bar and the top of the table. If there are fewer than two unselected rows above the inline action bar, the inline action bar is available but is not displayed. As shown in Figure 14 on page 28, the column headers describe the fields in the table. The Select, Thresholds Crossed, and Collection Time fields are common to all views and are explained in this section. The rest of the fields are specific to the type of data being displayed and are explained in detail in Chapter 7, Network performance views, on page 53. By default, the data in the table are sorted in descending order using the Thresholds Crossed field as the primary sort criteria. A secondary sort is done in descending order using the Collection Time field. This causes the most recent potential problems to be displayed at the top of the table. Select Each row of data in the table represents a unique resource, connection, or session being monitored. Select the check box in the Select column to specify the rows in the table that are affected by the next action that you take. Thresholds Crossed The monitor collects a number of performance metrics for each resource, connection or session being monitored. The network systems programmer can optionally assign a threshold value to one or more of these metrics. Specifying a threshold value instructs Tivoli Monitoring for Network Performance to alert the operator of a possible performance problem when the value of a metric crosses its threshold value. The Thresholds Crossed column contains the number of metrics whose thresholds have been crossed for each resource, connection or session being monitored. The Thresholds Crossed column is provided on all views that contain one or more metrics that can have associated threshold values. If a nonzero value is displayed in this column, a red icon is displayed adjacent to the numeric value. This indicates the number of metrics whose thresholds have been crossed. The red icon is also displayed next to each metric whose threshold has been crossed. You can use the Hide Thresholds Crossed Column action in the drop-down list to hide the Thresholds Crossed column. However, if you hide the Thresholds crossed column, you might need to scroll horizontally to determine if thresholds have been crossed. Collection Time The Collection Time column contains the date and time that the data in a row was collected and stored in the Tivoli Monitoring for Network Performance database. The format of the date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. Chapter 5. Working with performance data 35

50 Monitored resources and performance metrics You can view several different types of performance data by selecting tasks from the portfolio. When you select a task from the portfolio, the performance data related to that task is displayed in the work area, as shown in Figure 14 on page 28. The performance metrics are displayed in table format where each row in the table represents a unique resource, connection, or session being monitored. Column headers on page 35 explains the Select, Thresholds Crossed, and Collection Time fields which are common to all views. In addition to these common fields, each view contains one or more fields that uniquely identify the resource, connection or session being monitored. For example, in Figure 14 on page 28, the resource being monitored is a z/os TCP/IP protocol stack. A TCP/IP protocol stack is uniquely defined within a z/os system image by the TCP/IP job name and the fully qualified host name or IP address. The remaining fields in the table represent the performance metrics that have been collected for each TCP/IP protocol stack being monitored. The data specific to each view is discussed in Chapter 7, Network performance views, on page 53. Table footer As shown in Figure 14 on page 28, the table footer is displayed at the bottom of each table. The following fields are included in the table footer. Page number The current page number and total number of pages of data are displayed on the left end of the table footer. Total Rows in Database If no filters are active for the table, this field displays the total number of rows in the database for this table. Otherwise, the name of this field is Total Filtered Rows in Database and the field displays the number of rows in the database that match the active filters for this table. Displayed The number of rows that are displayed in the table. Selected The number of rows in the table that are currently selected. Time Zone The time zone is displayed in the table footer for every table that includes data in the form of a time stamp. This value represents the value specified on the Date and Time task in User Preferences. 36 IBM Tivoli Monitoring for Network Performance: Operator Guide

51 Chapter 6. Problem determination tools When configuring the monitors, the network systems programmer determines which resources to monitor, what types of data to collect, and how often to collect it. The network systems programmer can optionally assign a threshold value to one or more performance metrics. The monitor compares each piece of data that it collects to its associated threshold value to determine if the threshold has been crossed. If the threshold has been crossed, the data are flagged in the database. When the data are displayed on the Tivoli Monitoring for Network Performance user interface, a red error indicator is displayed next to the value of each metric whose threshold has been crossed. The Thresholds Crossed column contains the number of metrics whose thresholds have been crossed for each resource, connection or session being monitored. Figure 19 shows the IP Layer Stack Throughput and Traffic View. Figure 19. IP Layer Stack Throughput and Traffic View As seen in Figure 19, the TCP/IP stack being monitored on the ECUADOR system is reporting a potential performance problem as indicated by the non-zero Copyright IBM Corp

52 Displaying more detail Thresholds Crossed value and the red error indicators. The red error indicator placed in the Output Datagrams Discarded field indicates that the threshold value for this metric has been crossed. How you proceed from here depends on the operational protocol that is provided by your network systems programmer and network administrator. Depending on the nature of the problem, you might resolve the problem by completing a predefined set of instructions that relate to a set of specific network problems. Other situations can require that you gather more data related to the problem. In this case, you might have to gather associated data from previous collection periods or from other resources, connections or sessions being monitored on this system. In other cases, it is sometimes useful to compare the performance metrics from this system to performance metrics from similar systems that are being monitored by Tivoli Monitoring for Network Performance. Regardless of the situation, Tivoli Monitoring for Network Performance provides a set of problem determination and data gathering tools that help you resolve performance problems before they become critical. You can use these tools to gather data and analyze the health of your system at any time. The ability to display performance data from previous time intervals (collection periods) can help you determine when and how a performance problem began to surface. This information can be very helpful when trying to resolve performance problems and more importantly, avoid them in the future. The Details view provides a quick glance at the three most recent performance values that a monitor has collected from a resource, connection, or session being monitored. You can display the Details view by selecting a row in the table and clicking Details. The Details button is available when one and only one row in the table is selected. In the case where red error indicators are displayed, you can click the number displayed in the Thresholds Crossed column or the value of the metric whose threshold has been crossed to go directly to the Details view. Assume for this example that you have clicked on the number 1 in the Thresholds Crossed column for the ECUADOR system. Figure 20 on page 39 shows the information that is displayed. 38 IBM Tivoli Monitoring for Network Performance: Operator Guide

53 Figure 20. Details for IP Layer Stack Throughput and Traffic View The reference row at the top of the view is included for convenience. This is the complete row of data that you selected on the previous view. When creating a monitor definition, the network systems programmer has an option to specify threshold values for one or more performance metrics being collected. This option is not available for all metrics. Each metric that can have an associated threshold value is represented as a tab on the left side of the work area. You can display details for each metric that is listed on the left side of the view. The Details view displayed in the work area contains the three most recent values that have been collected for the selected metric. If threshold and rearm values were specified by the network systems programmer, they are displayed here along with the time stamp of each collection. The table at the bottom of the view displays the total number of samples for this metric that are in the database and the time stamp of the first (oldest) sample. These values are included to help you determine how useful the minimum, maximum, and average values are. The minimum, maximum and average values are probably less relevant if these statistics have been calculated using a small number of samples. When you navigate to this view by clicking the value in the Thresholds Crossed field, the detailed data for the first threshold crossed is displayed in the right side Chapter 6. Problem determination tools 39

54 of the work area. When you navigate to this view by clicking a specific metric whose threshold has been crossed, the detailed data for that metric is displayed in the right side of the work area. When you navigate to the Details view by clicking Details, the first metric in the row is displayed in the right side of the work area. From the Details view, you can either click Close to return to the previous view, or you can generate a graph or table of one of the metrics containing samples from a previous collection period. Displaying data from previous collection periods In many cases, it is necessary to generate a graph or table containing data from a previous collection period to understand the source of a problem. You can do this with the graph function provided by Tivoli Monitoring for Network Performance. As mentioned, the graph function is available from the Details view. When you specify the default graphing parameters on the Details view, they are applied to the metric whose data you are currently viewing. The graphing function is also available from the high-level views. Figure 21 on page 41 shows the IP Layer Stack Throughput and Traffic View that is used in this example. 40 IBM Tivoli Monitoring for Network Performance: Operator Guide

55 Figure 21. Graphing example using the IP Layer Stack Throughput and Traffic View With the Graph Multiple Resources button, you can display a single metric across multiple resources. This button is available when you select more than one row from the table. You can select a maximum of ten resources to graph. With the Graph Metrics button, you can display data from previous collections for one or more metrics for a specific resource. For this example, system ECUADOR is selected and the Graph Metrics button is available. Figure 22 on page 42 shows the information that is displayed when you click Graph Metrics. Chapter 6. Problem determination tools 41

56 Figure 22. Graphing data with the Graph Metrics button From this view, you can modify any of the following graph characteristics: Graph Title The name of the view is used as the default graph title. Modify this field to meet your needs. Graph Time Range Time range consists of a start time and date and an end time and date. Selected metrics that were collected during this time range are included in the graph. By default, the value of Start Time is set to two hours before the current time, and the Graph to present time and date check box is selected. Clear this check box to provide a specific end time and date. You can specify Start Time and Start Date, and End Time and End Date to include data from any collection period that resides in the Tivoli Monitoring for Network Performance database. The format of the time and date fields are determined by the time and date format that you specified in User Preferences. If data for the specified metrics exists in the database for the selected time range, it is displayed in the graph. Performance Metrics The list of performance metrics that you can graph is different for each view. Select one or more metrics to graph for the resource, connection or session being monitored. 42 IBM Tivoli Monitoring for Network Performance: Operator Guide

57 Chapter 4, Setting user preferences, on page 19 describes the global default values for graph properties. You can override the global default graph properties by clicking Graph Properties. If you override the global default graph properties, all graphs that are generated for this task use the override values. Figure 23 shows the information that is displayed when you click Graph Properties. Figure 23. Overriding graph properties All of the graph properties that can be specified in User Preferences can be overridden. For example, you can display data in table format by changing the graph type. In addition, you can change the default line or bar chart colors that are assigned to each metric. The following buttons are available on this view: OK Saves your changes, closes the view, and returns you to the previous display shown in Figure 22 on page 42. Apply Saves your changes and does not close the view. Restore User Preferences Restores all fields on the view to the global default graph properties specified in User Preferences. Cancel Closes the view without saving your changes and returns you to the previous display shown in Figure 22 on page 42. Chapter 6. Problem determination tools 43

58 Click Graph Now to display the graph shown in Figure 24. Note that for this graph, the Graph to present time and date check box is selected. When this check box is selected, the graph includes data from the Start Time and Start Date to the present time and date. Figure 24. Displayed graph for IP Layer Stack Throughput and Traffic View In the appropriate fields on the graph shown in Figure 24, you can modify the graph title and time range, and which performance metrics to graph. Click Show Graph Only to display the graph without showing all of the properties, as shown in Figure 25 on page 45: 44 IBM Tivoli Monitoring for Network Performance: Operator Guide

59 Figure 25. Displayed graph, without all properties You can print a graph or save a graph as a file by right clicking the graph and choosing the print or save options respectively. This is useful if you want to include a graph in a presentation. If you find it necessary to generate the same graph repeatedly, either to diagnose a recurring problem or to include the graph in a status report, you can save the characteristics of the graph so the graph can be generated more quickly in the future. Click Save as Favorite Graph to save the characteristics of this graph, as shown in Figure 26 on page 46: Chapter 6. Problem determination tools 45

60 Figure 26. Saving a favorite graph Favorite graphs are saved by graph title. Graph titles must be unique per task. You can modify the graph title by modifying the value in the Save Favorite Graph by Graph Title field or you can select an existing favorite graph from the drop-down list to replace an existing favorite graph. Click OK to save the current graph as a favorite graph or Cancel to close it without saving it as a favorite graph. You can recall favorite graphs by clicking View Favorite Graphs from the portfolio, as shown in Figure 27 on page IBM Tivoli Monitoring for Network Performance: Operator Guide

61 Figure 27. Favorite Graphs Running diagnostics The Graph Title of Favorite Graph column contains any graph titles that were specified when the graphs were saved. The Source of Data column is included as reference so you can see which type of data is being graphed. Select a favorite graph from the list and click Graph Now to display the graph. Note that the graph time range is included in the saved graph characteristics. If you have selected the Graph to present time and date check box, the displayed favorite graph might contain additional data from when it was previously saved. Also, if the database has been purged, data might no longer exist for the saved graph time range. If you want to remove a favorite graph from the list, select a favorite graph and click Remove Graph. To aid in problem determination, the Ping and Trace Route commands are provided as part of the Tivoli Monitoring for Network Performance user interface. You can use the Ping command to verify whether a monitor can communicate with an IP resource in your network. Response time data are also provided. Chapter 6. Problem determination tools 47

62 You can use the Trace Route command to determine the path that an IP datagram takes to reach its destination. With this command, you can display the path from a monitor to an IP resource, showing the latency to each hop on the route. The options for the Ping and Trace Route commands are provided under the Run Diagnostics task in the portfolio. The Ping and Trace Route views are used to specify the source, destination and options for each command. These commands are issued from the system where the monitor is running. Results from the commands are displayed in table format. Ping command To issue a Ping command, click Run Diagnostics from the portfolio and then click Ping. Figure 28 shows the Ping command options. Figure 28. Ping command options Use the following fields to specify the name of the system where the monitors are running, the destination resource, and other Ping command parameters: System Name The System Name drop-down list contains the list of systems where the 48 IBM Tivoli Monitoring for Network Performance: Operator Guide

63 monitors are defined. Select a system from this list. The monitor running on the selected system issues the Ping command to the target resource. Host Name or IP Address Specify the fully qualified host name or IP address of the IP resource that you want to ping. Packet Size Specify the number of bytes that are in each packet that is issued by the Ping command. Select a value from the drop-down list. Timeout Specify the number of seconds after which the Ping command times out. Select a value from the drop-down list. Do not fragment Select this check box if you do not want to send fragmented packets. If you do not select this check box, then the packets might be fragmented. When you are done specifying Ping command parameters, click OK to issue the command. The results of the Ping command are displayed in table format. The IP address of the system that issued the Ping command is displayed in the Source field. The IP resource that is the target of the Ping command is displayed in the Destination field. Four commands are issued and the round trip time for each is displayed in the table along with the average round trip time. All times are displayed in milliseconds. In the case where a Ping command fails, a return code is displayed in one or more of the Round Trip Time fields. Use the task assistant to see a description for each of the return codes. Trace Route command To issue a Trace Route command, click Run Diagnostics from the portfolio and then click Trace Route. Figure 29 on page 50 shows the Trace Route command options. Chapter 6. Problem determination tools 49

64 Figure 29. Trace Route command options Use the following fields to specify the name of the system where the monitors are running, the destination resource, and other Trace Route command parameters: System Name The System Name drop-down list contains the list of systems where the monitors are defined. Select a system from this list. The monitor running on the selected system issues the Trace Route command to the target resource. Host Name or IP Address Specify the fully qualified host name or IP address of the IP resource whose path you want to trace. Timeout Specify the number of seconds after which the Trace Route command times out. Select a value from the drop-down list. Do not fragment Select this check box if you do not want to send fragmented packets. If you do not select this check box, then the packets might be fragmented. When you are done specifying Trace Route command parameters, click OK to issue the command. 50 IBM Tivoli Monitoring for Network Performance: Operator Guide

65 The results of the Trace Route command are displayed in table format. The IP address and round trip times are displayed for each hop count in the route. All times are displayed in milliseconds. In the case where a Trace Route command fails, a return code is displayed in one or more of the Round Trip Time fields. Use the task assistant to see a description for each of the return codes. Chapter 6. Problem determination tools 51

66 52 IBM Tivoli Monitoring for Network Performance: Operator Guide

67 Chapter 7. Network performance views View TCP Stacks This chapter describes the data that is collected for each type of resource, connection, or session being monitored. The portfolio in the user interface is organized to reflect the following categories of performance data that you can view: v View TCP Stacks v View UDP Stacks on page 64 v View IP Stacks on page 69 v View FTP on page 71 v View TN3270 on page 80 v View HPR and EE on page 87 v View Interface Data on page 100 v View Adapter Data on page 107 v View Memory Data on page 113 v View Response Time on page 119 An overview of the information contained in these views is provided in each of the sections below along with descriptions of the fields in each view. Note: Because of the number of table columns in some of the following views, some of the fields described in the text might not be visible in the corresponding figures. Under the View TCP Stacks entry in the portfolio, you find the following entries: v TCP Stack Availability and Response v TCP Stack Throughput and Traffic on page 55 v Application Availability and Response on page 57 v Connection Availability and Response on page 59 v Connection Throughput and Traffic on page 62 TCP Stack Availability and Response The TCP Stack Availability and Response view provides performance data for the TCP layer of a z/os Communications Server TCP/IP protocol stack that is running in z/os system images. A TCP/IP protocol stack is uniquely defined within a z/os system image by the TCP/IP job name and the fully qualified host name or IP address. Performance data for the TCP layer stack is displayed if the network systems programmer chose to collect TCP stack performance data when creating the z/os monitor configuration. Copyright IBM Corp

68 This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 30 displays this view. Figure 30. TCP Stack Availability and Response The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. IP Address The IP Address column contains the IP address of the TCP/IP stack. Host Name The Host Name column contains the host name of the TCP/IP stack. Active Connections The Active Connections column contains the number of TCP connections which currently has one of the following states: 54 IBM Tivoli Monitoring for Network Performance: Operator Guide

69 v Established v Close-Wait Accepted Connections The Accepted Connections column contains the total number of connections that were accepted during the most recent interval. Connection Rate The Connection Rate column contains the number of connections that were accepted per second during the most recent interval. Accepted Connections High-Water Mark The Accepted Connections High-Water Mark column contains the high-water mark for the Accepted Connections column. This column also includes the date and time when the value of the high-water mark was collected. Connections Dropped The Connections Dropped column contains the total number of connections that were lost by this listener during the most recent interval. The connections were lost because of one of the following reasons: v The retransmit threshold was exceeded. v There was no response while sending window probe requests. v There was no response while sending keep-alive probe requests. v The FINWAIT2 timer expired before the FIN segment was received. Window Probes Sent The Window Probes Sent column contains the number of outbound window probe requests that were sent during the most recent interval. Segments Retransmitted The Segments Retransmitted column contains the total number of segments that were retransmitted during the most recent interval. Percent Segments Retransmitted The Percent of Segments Retransmitted column contains the percentage of segments that were retransmitted during the most recent interval. Retransmission Rate The Retransmission Rate column contains the number of segments that were retransmitted per second during the most recent interval. TCP Stack Throughput and Traffic The TCP Stack Throughput and Traffic view provides performance data for the TCP layer of a z/os Communications Server TCP/IP protocol stack that is running in z/os system images. A TCP/IP protocol stack is uniquely defined within a z/os system image by the TCP/IP job name and the fully qualified host name or IP address. Performance data for the TCP layer stack is displayed if the network systems programmer chose to collect TCP stack performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 31 on page 56 displays this view. Chapter 7. Network performance views 55

70 Figure 31. TCP Stack Throughput and Traffic The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. IP Address The IP Address column contains the IP address of the TCP/IP stack. Host Name The Host Name column contains the host name of the TCP/IP stack. Transmit Segment Rate The Transmit Segment Rate column contains the number of segments that were transmitted per second during the most recent interval. Receive Segment Rate The Receive Segment Rate column contains the number of segments that were received per second during the most recent interval. 56 IBM Tivoli Monitoring for Network Performance: Operator Guide

71 Segments Sent The Segments Sent column contains the total number of segments that were sent during the most recent interval. This number includes the segments on current connections, and excludes those segments that contain only retransmitted octets. Segments Received The Segments Received column contains the total number of segments that were received during the most recent interval. This number includes segments received on currently established connections and segments received in error. Segments in Error The Segments in Error column contains the total number of segments that were received in error during the most recent interval. An example of the segments that are included in this total is segments that have incorrect TCP checksums. Out-of-Order Segments The Out-of-Order Segments column contains the number of inbound TCP data segments that did not contain the next expected sequence number during the most recent interval. Percent Out-of-Order Segments The Percent Out-of-Order Segments column contains the percentage of received segments that did not contain the next expected sequence number during the most recent interval. Application Availability and Response The Application Availability and Response view provides performance data for the z/os TCP/IP socket listeners that are running in z/os system images. The z/os TCP/IP socket listeners are uniquely defined within a z/os system image by the listener IP address and port number. TCP application data are displayed if the network systems programmer chose to collect TCP/IP application performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 32 on page 58 displays this view. Chapter 7. Network performance views 57

72 Figure 32. Application Availability and Response The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Application Job Name The Application Job Name column contains the job name that is associated with the application address space which opened and bound the socket. The application job name is also the address space name. ASID The ASID column contains the z/os address space ID of the address space that opened the socket. Listener IP Address The Listener IP Address column contains the local IP address for this TCP application. In many cases, this IP address is zero when the application accepts connections to any local IP address. 58 IBM Tivoli Monitoring for Network Performance: Operator Guide

73 Listener Port The Listener Port column contains the local port for this TCP application. Active Connections The Active Connections column contains the number of current connections. Accepted Connections The Accepted Connections column contains the total number of connections that were accepted by this listener during the most recent interval. Connection Rate The Connection Rate column contains the number of connections that were accepted per second during the most recent interval. Active Connections High-water Mark The Active Connections High-water Mark column contains the high-water mark for the Active Connections column. This column also includes the date and time when the value of the high-water mark was collected. The format of date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. Idle Time Since Last Accept The Idle Time Since Last Accept column contains the amount of time in hours that the server has been idle since the most recent connection was accepted. Server Up Time The Server Up Time column contains the amount of time in hours that the server has been active. Connections in Backlog The Connections in Backlog column contains the current number of connections that are in backlog. Connections in backlog are waiting to be accepted. Backlog Connections Rejected The Backlog Connections Rejected column contains the total number of connections that were dropped by the z/os Communications Server because the backlog limit was exceeded before the application could accept the waiting connections. Backlog Connections Rejected Time Stamp The Backlog Connections Rejected Time Stamp column contains the date and time that a connection was most recently rejected because the backlog limit was exceeded. The format of date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. Backlog Limit The Backlog Limit column contains the maximum number of connections that are allowed in backlog at the same time. Connection Availability and Response The Connection Availability and Response view provides performance data for the accepted connections that are running in the z/os system image. Chapter 7. Network performance views 59

74 A local IP address and port number and a remote IP address and port number uniquely define a TCP/IP connection. TCP/IP connection data are displayed if the network systems programmer chose to collect TCP connection performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 33 displays this view. Figure 33. Connection Availability and Response The following fields are displayed in this view: Remote IP Address The Remote IP Address column contains the remote IP address for this TCP connection. Remote Port The Remote Port column contains the remote port for this TCP connection. Local IP Address The Local IP Address column contains the local IP address for this TCP connection. 60 IBM Tivoli Monitoring for Network Performance: Operator Guide

75 Local Port The Local Port column contains the local port for this TCP connection. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Application Job Name The Application Job Name column contains the job name that is associated with the application address space which opened and bound the socket. The application job name is also the address space name. ASID The ASID column contains the z/os address space ID of the address space that opened the socket. Connection Start Time The Connection Start Time column contains the time and date when this connection was created. The format of date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. Connection Duration The Connection Duration column contains the amount of time that has elapsed since the creation of the connection. The unit of measure is seconds. Connection State The Connection State column contains the state of the TCP connection. The following states are possible: v CLOSED v LISTEN v SYN-SENT v SYN-RECEIVED v ESTABLISHED v FIN-WAIT-1 v FIN-WAIT-2 v CLOSE-WAIT v LAST-ACK v CLOSING v TIME-WAIT v DELETE-TCB Time Since Last Activity The Time Since Last Activity column contains the amount of time that has elapsed since the most recent activity on this connection. The unit of measure is seconds. Local Window Size Frequency The Local Window Size Frequency column contains the number of times that the local window size was set to zero during the most recent interval. Remote Window Size Frequency The Remote Window Size Frequency column contains the number of times that the remote window size was set to zero during the most recent interval. Response Time The Response Time column contains the time, in milliseconds, that elapsed Chapter 7. Network performance views 61

76 from the time that the most recent TCP segment was transmitted by the TCP stack until the acknowledgement (ACK) was received. Response Time Variance The Response Time Variance column contains the variance for the round-trip response time. Segments Retransmitted The Segments Retransmitted column contains the total number of segments that were retransmitted during the most recent interval. Percent Segment Retransmitted The Percent Segment Retransmitted column contains the percentage of segments that were retransmitted during the most recent interval. Retransmission Rate The Retransmission Rate column contains the number of segments that were retransmitted per second during the most recent interval. Connection Throughput and Traffic The Connection Throughput and Traffic view provides performance data for the accepted connections to the defined z/os TCP/IP socket listeners that are running in z/os system images. A local IP address and port number and a remote IP address and port number uniquely define a TCP/IP connection. TCP/IP connection data are displayed if the network systems programmer chose to collect TCP connection performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 34 on page 63 displays this view. 62 IBM Tivoli Monitoring for Network Performance: Operator Guide

77 Figure 34. Connection Throughput and Traffic The following fields are displayed in this view: Remote IP Address The Remote IP Address column contains the remote IP address for this TCP connection. Remote Port The Remote Port column contains the remote port for this TCP connection. Local IP Address The Local IP Address column contains the local IP address for this TCP connection. Local Port The Local Port column contains the local port for this TCP connection. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Application Job Name The Application Job Name column contains the job name that is associated with the application address space which opened and bound the socket. The application job name is also the address space name. Chapter 7. Network performance views 63

78 ASID View UDP Stacks The ASID column contains the z/os address space ID of the address space that opened the socket. Outbound Traffic Interface Name The Outbound Traffic Interface Name column contains the name of the interface that was used to send the most recent outbound segment. Transmit Byte Rate The Transmit Byte Rate column contains the number of bytes that were transmitted per second during the most recent interval. Receive Byte Rate The Receive Byte Rate column contains the number of bytes that were received per second during the most recent interval. Transmit Segment Rate The Transmit Segment Rate column contains the number of segments that were transmitted per second during the most recent interval. Receive Segment Rate The Receive Segment Rate column contains the number of segments that were received per second during the most recent interval. Bytes Sent The Bytes Sent column contains the number of bytes that were sent to the IP layer for this connection during the most recent interval. Bytes Received The Bytes Received column contains the number of bytes that were received from the IP layer for this connection during the most recent interval. Segments Sent The Segments Sent column contains the number of segments that were sent to the IP layer for this connection during the most recent interval. Segments Received The Segments Received column contains the number of segments that were received from the IP layer for this connection during the most recent interval. Out-of-Order Segments The Out-of-Order Segments column contains the number of out-of-order segments that were received during the most recent interval. Percent Out-of-Order Segments The Percent Out-of-Order Segments column contains the percentage of received segments that did not contain the next expected sequence number during the most recent interval. Under the View UDP Stacks entry in the portfolio, you find the following entries: v UDP Stack Throughput and Traffic v UDP Endpoint Throughput and Traffic on page 66 UDP Stack Throughput and Traffic The UDP Stack Throughput and Traffic view provides performance data for the UDP layer of a z/os Communications Server-defined TCP/IP protocol stack running in z/os system images. 64 IBM Tivoli Monitoring for Network Performance: Operator Guide

79 The TCP/IP protocol stack is uniquely defined within a z/os system image by the TCP/IP job name and fully qualified host name or IP address. UDP layer stack data are displayed if the network systems programmer chose to collect UDP stack performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 35 displays this view. Figure 35. UDP Stack Throughput and Traffic The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Host Name The Host Name column contains the host name of the TCP/IP stack. Chapter 7. Network performance views 65

80 IP Address The IP Address column contains the IP address of the TCP/IP stack. Transmit Datagram Rate The Transmit Datagram Rate column contains the number of datagrams that were transmitted per second during the most recent interval. Receive Datagram Rate The Receive Datagram Rate column contains the number of datagrams that were received per second during the most recent interval. Datagrams Sent The Datagrams Sent column contains the number of datagrams that were sent during the most recent interval. Datagrams Received The Datagrams Received column contains the total number of datagrams that were received during the most recent interval. This total equals the sum of the number of delivered datagrams and the number of datagrams that could not be delivered. Datagrams Delivered The Datagrams Delivered column contains the total number of UDP datagrams that were delivered to UDP users during the most recent interval. Datagrams Not Delivered The Datagrams Not Delivered column contains the number of received UDP datagrams that could not be delivered during the most recent interval. Percent Not Delivered Datagrams The Percent Not Delivered Datagrams column contains the percentage of datagrams that were received but not delivered during the most recent interval. UDP Endpoint Throughput and Traffic The UDP Endpoint Throughput and Traffic view provides performance data for the z/os UDP endpoints that are running in z/os system images. The z/os UDP endpoints are defined within a z/os system image by the fully qualified host name or IP address and port number. UDP endpoint data are displayed if the network systems programmer chose to collect UDP stack performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 36 on page 67 displays this view. 66 IBM Tivoli Monitoring for Network Performance: Operator Guide

81 Figure 36. UDP Endpoint Throughput and Traffic The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Host Name The Host Name column contains the host name of the TCP/IP stack. IP Address The IP Address column contains the IP address of the TCP/IP stack for the row of data. Port The Port column contains the local port for the UDP endpoint. Application Job Name The Application Job Name column contains the job name that is associated with the application address space which opened and bound the socket. The application job name is also the address space name. Chapter 7. Network performance views 67

82 ASID The ASID column contains the z/os address space ID of the address space that opened the socket. Creation Time Stamp The Creation Time Stamp column contains the date and time that this UDP endpoint opened the socket. Transmit Byte Rate The Transmit Byte Rate column contains the number of bytes that were transmitted per second during the most recent interval. Receive Byte Rate The Receive Byte Rate column contains the number of bytes that were received per second during the most recent interval. Transmit Datagram Rate The Transmit Datagram Rate column contains the number of datagrams that were transmitted per second during the most recent interval. Receive Datagram Rate The Receive Datagram Rate column contains the number of datagrams that were received per second during the most recent interval. Bytes Sent The Bytes Sent column contains the number of bytes that were sent during the most recent interval. Bytes Received The Bytes Received column contains the number of bytes that were received during the most recent interval. Datagrams Sent The Datagrams Sent column contains the number of datagrams that were sent during the most recent interval. Datagrams Received The Datagrams Received column contains the total number of datagrams that were received during the most recent interval. This total equals the sum of the number of delivered datagrams and the number of datagrams that could not be delivered. Datagrams Queued The Datagrams Queued column contains the number of datagrams that are in the read queue. Datagrams Discarded The Datagrams Discarded column contains the number of inbound datagrams that were discarded because a receive queue limit was exceeded during the most recent interval. Percent Datagrams Discarded The Percent Datagrams Discarded column contains the percentage of received datagrams that were discarded because the receive queue limit was exceeded during the most recent interval. Queued Datagrams Bytes The Queued Datagrams Bytes column contains the number of data bytes that are in the datagrams in the read queue. Send Datagram Size Limit The Send Datagram Size Limit column contains the maximum size that is allowed for a transmitted datagram. 68 IBM Tivoli Monitoring for Network Performance: Operator Guide

83 View IP Stacks Receive Datagram Size Limit The Receive Datagram Size Limit column contains the maximum size that is allowed for a received datagram. Receive Queue Limit (bytes) The Receive Queue Limit (bytes) column contains the maximum number of data bytes that is allowed in the read queue. Receive Queue Limit (datagrams) The Receive Queue Limit (datagrams) column contains the maximum number of datagrams that is allowed in the read queue. The IP Stack Throughput and Traffic view provides performance data for the IP Layer of a z/os Communications Server-defined TCP/IP protocol stack that is running in z/os system images. The TCP/IP protocol stack is uniquely defined within a z/os system image by the TCP/IP job name and fully qualified host name or IP address. IP layer stack data are displayed if the network systems programmer chose to collect IP stack performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 37 on page 70 displays this view. Chapter 7. Network performance views 69

84 Figure 37. IP Stack Throughput and Traffic The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. IP Address The IP Address column contains the IP address of the TCP/IP stack. Host Name The Host Name column contains the host name of the TCP/IP stack. Transmit Datagram Rate The Transmit Datagram Rate column contains the number of datagrams that were requested to be transmitted per second during the most recent interval. Receive Datagram Rate The Receive Datagram Rate column contains the number of datagrams that were received per second during the most recent interval. 70 IBM Tivoli Monitoring for Network Performance: Operator Guide

85 Input Datagrams Received The Input Datagrams Received column contains the number of input datagrams that were received from interfaces, including those datagrams received in error, during the most recent interval. Input Datagrams Forwarded The Input Datagrams Forwarded column contains the number of input datagrams during the most recent interval for which this entity was not their final IP destination. An attempt was made to find a route to forward them to their final destination. Input Datagrams Discarded The Input Datagrams Discarded column contains the number of input datagrams that were discarded during the most recent interval due to any of the following errors: v Errors in IP headers, including incorrect checksums, version number mismatches, other formatting errors, time-to-live exceeded, and errors discovered in processing their IP options. v The IP address in the destination field of the IP header is not a valid address to be received at this entity. Addresses in this category include addresses that are not valid (such as ) and addresses of unsupported classes (for example, Class E). v The locally-addressed datagram was received successfully but discarded because of an unknown or unsupported protocol. v The datagram was not in error. However, the datagram was discarded because of a lack of buffer space. Percent Datagrams Discarded The Percent Datagrams Discarded column contains the percentage of received datagrams that were discarded during the most recent interval. Input Datagrams Delivered The Input Datagrams Delivered column contains the number of input datagrams that were successfully delivered to IP user-protocols, including ICMP, during the most recent interval. Output Datagrams Requested The Output Datagrams Requested column contains the number of IP datagrams that local IP user-protocols, including ICMP, supplied to the IP layer during the most recent interval. Output Datagrams Discarded The Output Datagrams Discarded column contains the number of output IP datagrams that were discarded during the most recent interval due to any of the following problems: v Lack of buffer space v No route could be found to transmit them to their destination Fragments to be Reassembled The Fragments to be Reassembled column contains the number of received IP fragments that needed to be reassembled by the IP layer during the most recent interval. View FTP Under the View FTP entry in the portfolio, you find the following entries: v FTP Sessions on page 72 v FTP Client Transfer Records on page 74 v FTP Server Transfer Records on page 77 Chapter 7. Network performance views 71

86 FTP Sessions The FTP Sessions view includes FTP session data for sessions either from a remote FTP client to a z/os FTP server, or from a z/os FTP client to a remote FTP server. A local IP address and port number and a remote IP address and port number uniquely define the FTP control connection for an FTP session. FTP session data are displayed if the network systems programmer chose to collect FTP performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that were selected to be monitored within those images. Figure 38 displays this view. Figure 38. FTP Sessions The following fields are displayed in this view. There is an additional button, Transfer Records, that is described after these field descriptions. Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. 72 IBM Tivoli Monitoring for Network Performance: Operator Guide

87 System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Application Job Name The Application Job Name column contains the name of the FTP application. FTP Type The FTP Type column identifies whether this FTP session is using the FTP client or the FTP server on the local system. Remote IP Address The Remote IP Address column contains the remote IP address for the FTP control connection. Remote Port The Remote Port column contains the remote port for the FTP control connection. Local IP Address The Local IP Address column contains the local IP address for the FTP control connection. Local Port The Local Port column contains the local port for the FTP control connection. User ID on Server The User ID on Server column contains the user name that was used to log in to the server. Client User ID The Client User ID column contains the local user name (login name) of the client. This column applies to client transfers only. Session Start The Session Start column contains the date and time at which the control session was established. If the login failed, this column does not apply. Session End The Session End column contains the date and time when the control session ended. If the login failed, this column does not apply. Login Failure Reason The Login Failure Reason column contains the reason that the login failed. This column only applies to the FTP server. The following reasons are possible: v Password not valid v Password has expired v User ID has been revoked v User does not have access to server v FTCHKPWD exit routine rejected login v Excessive incorrect passwords v Group ID process failed v User ID is unknown ASID The ASID column contains the z/os address space ID of the address space that opened the socket. Chapter 7. Network performance views 73

88 With the Transfer Records button, you can display the transfer records that are associated with a particular FTP session. If you select an FTP session that has an FTP type of client, then this button displays all of the transfer records for the selected FTP client. If you select an FTP session that has an FTP type of server, then this button displays all of the transfer records for the selected FTP server. Whenever this button is available, it is included in the drop-down list of actions. Selecting an FTP session with an FTP type of server and clicking Transfer Records displays the view shown in Figure 39: Figure 39. FTP Server Transfer Records FTP Client Transfer Records The FTP Client Transfer Records view provides performance data for FTP data transfers between a z/os FTP client and a remote FTP server. When selected from the portfolio, FTP Client Transfer Records for all FTP sessions are displayed. A local IP address and port number and a remote IP address and port number uniquely define the FTP data connection for this FTP transfer. FTP client transfer record data are displayed if the network systems programmer chose to collect FTP performance data when creating the z/os monitor configuration. 74 IBM Tivoli Monitoring for Network Performance: Operator Guide

89 This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 40 displays this view. Figure 40. FTP Client Transfer Records The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Remote IP Address The Remote IP Address column contains the remote IP address for this FTP data connection. Remote Port The Remote Port column contains the remote port for this FTP data connection. Chapter 7. Network performance views 75

90 Local IP Address The Local IP Address column contains the local IP address for this FTP data connection. Local Port The Local Port column contains the local port for this FTP data connection. Client User ID The Client User ID column contains the local user name (login name) of the client. Server User ID The Server User ID column contains the user name that was used to log in to the server. The user name that is shown, which can contain a maximum of 8 characters, might be a truncated user name. Although some hosts allow more than 8 characters in a user name, z/os hosts only record the first 8 characters. Transmission Duration The Transmission Duration column contains the amount of time that was needed to complete the transfer or command. The unit of measure is seconds. Bytes Transmitted The Bytes Transmitted column contains the number of bytes that were transmitted. Transmission Start The Transmission Start column contains the date and time when the transmission started. Transmission End The Transmission End column contains the date and time when the transmission ended. Command The Command column contains the FTP command, as defined in RFC Last Reply to Client The Last Reply to Client column contains the most recent reply that was sent from the server to the client. Transmission Mode The Transmission Mode column contains the transmission mode that is used for this transmission. The following alphabetic characters are valid: v B (Block) v C (Compressed) v S (Stream) File Type The File Type column contains the type of file that is being transferred. The following three-character values are valid: v SEQ (Sequential) v JES (Job Entry System) v SQL (Structured Query Language) Data Type The Data Type column contains the data type of the file that is being transferred. The following alphabetic characters are valid: v A (ASCII) v B (Double byte) 76 IBM Tivoli Monitoring for Network Performance: Operator Guide

91 v E (EBCDIC) v I (Image) v U (UCS-2) Data Set Type The Data Set Type column contains the type of data set for the file that is being transferred. The following values are valid: v S (Sequential) v P (Partitioned data set) v H (Hierarchical file system) Data Structure The Data Structure column contains the data structure of the file that is being transferred. The following alphabetic characters are valid: v F (File) v R (Record) Data Set Name The Data Set Name column contains the name of the data set that is being transferred. PDS Member Name The PDS Member Name column contains the name of the member of the partitioned data set (PDS) that is being transferred. FTP Server Transfer Records The FTP Server Transfer Records view provides performance data for FTP data transfers between a z/os FTP server and a remote FTP client. When selected from the portfolio, FTP Server Transfer Records for all FTP sessions are displayed. A local IP address and port number and a remote IP address and port number uniquely define the FTP data connection for this FTP transfer. FTP server transfer record data are displayed if the network systems programmer chose to collect FTP performance data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 41 on page 78 displays this view. Chapter 7. Network performance views 77

92 Figure 41. FTP Server Transfer Records The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Remote IP Address The Remote IP Address column contains the remote IP address for this FTP data connection. Remote Port The Remote Port column contains the remote port for this FTP data connection. Local IP Address The Local IP Address column contains the local IP address for this FTP data connection. Local Port The Local Port column contains the local port for this FTP data connection. 78 IBM Tivoli Monitoring for Network Performance: Operator Guide

93 Client User ID on Server The Client User ID column contains the user name that was used to log in to the server. Transmission Duration The Transmission Duration column contains the amount of time that was needed to complete the transfer or command. The unit of measure is seconds. Bytes Transmitted The Bytes Transmitted column contains the number of bytes that were transmitted. Transmission Start The Transmission Start column contains the date and time when the transmission started. Transmission End The Transmission End column contains the date and time when the transmission ended. Command The Command column contains the FTP command, as defined in RFC Last Reply to Client The Last Reply to Client column contains the most recent reply that was sent from the server to the client. Transmission Mode The Transmission Mode column contains the transmission mode that is used for this transmission. The following alphabetic characters are valid: v B (Block) v C (Compressed) v S (Stream) File Type The File Type column contains the type of file that is being transferred. The following three-character values are valid: v SEQ (Sequential) v JES (Job Entry System) v SQL (Structured Query Language) Data Type The Data Type column contains the data type of the file that is being transferred. The following alphabetic characters are valid: v A (ASCII) v B (Double byte) v E (EBCDIC) v I (Image) v U (UCS-2) Data Structure The Data Structure column contains the data structure of the file that is being transferred. The following alphabetic characters are valid: v F (File) v R (Record) Data Set Type The Data Set Type column contains the type of data set for the file that is being transferred. The following values are valid: Chapter 7. Network performance views 79

94 v S (Sequential) v P (Partitioned data set) v H (Hierarchical file system) Data Set Name The Data Set Name column contains the name of the data set that is being transferred. PDS Member Name The PDS Member Name column contains the name of the member of the partitioned data set (PDS) that is being transferred. New Data Set Name This column is completed for records associated with an FTP Rename function only. New PDS Member Name This column is completed for records associated with an FTP Rename function only. View TN3270 Under the View TN3270 entry in the portfolio, you find the following entries: v TN3270 Session Availability v Sliding-window Response Time on page 82 v Response Time Counts by Time Bucket on page 84 TN3270 Session Availability The TN3270 Session Availability view includes session data for TN3270 sessions from a remote TN3270 client to a z/os TN3270 server. TN3270 server session data are displayed if the network systems programmer chose to collect TN3270 performance data when creating the z/os monitor configuration. A local IP address and port number and a remote IP address and port number uniquely define the TN3270 session. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. These views include data about availability, average response time, and response counts by time buckets. Figure 42 on page 81 displays this view. 80 IBM Tivoli Monitoring for Network Performance: Operator Guide

95 Figure 42. TN3270 Session Availability The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job, which is also the application job name. Telnet LU Name The Telnet LU Name column contains the LU name that represents the client for this Telnet session. SNA Application Name The SNA Application Name column contains the LU name of the SNA application for this Telnet session. This is not the fully qualified name. Remote IP Address The Remote IP Address column contains the remote IP address for this Telnet session. Chapter 7. Network performance views 81

96 Remote Port The Remote Port column contains the remote port for this Telnet session. Local IP Address The Local IP Address column contains the local IP address for this Telnet session. Local Port The Local Port column contains the local port for this Telnet session. Session Start The Session Start column contains the date and time when the session was started. Session End The Session End column contains the date and time when the session ended. Inbound Bytes The Inbound Bytes column contains the number of bytes that were received by the server for this session. Outbound Bytes The Outbound Bytes column contains the number of bytes that were sent by the server for this session. Session Type The Session Type column specifies the type of session. The valid values for Session Type are: v Unknown v TN3270 v TN3270E v Linemode v DBCSTransform v Binary LU Selection Method The LU Selection Method column specifies the method that was used to select the LU. The valid values for LU Selection Method are: v Chosen by server v Chosen by client SSL Status The SSL Status column contains the Secure Sockets Layer (SSL) status for the session. The valid values for SSL Status are: v Non-SSL session v Server Auth only v Server and client (no SAF) v Server and client (SAF) Sliding-window Response Time The Sliding-window Average Response Time view includes session data for TN3270 sessions from a remote TN3270 client to a z/os TN3270 server. This data is available only for TN3270 servers running on z/os 1.5 (or later) systems. Sliding-window Average Response Time data are displayed if the network systems programmer chose to collect TN3270 performance data when creating the z/os monitor configuration. 82 IBM Tivoli Monitoring for Network Performance: Operator Guide

97 A local IP address and port number and a remote IP address and port number uniquely define the TN3270 session. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. These views include data about availability, average response time, and response counts by time buckets. Figure 43 displays this view. Figure 43. Sliding-window Response Time The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Telnet LU Name The Telnet LU Name column contains the LU name that represents the client for this Telnet session. Chapter 7. Network performance views 83

98 SNA Application Name The SNA Application Name column contains the LU name of the SNA application for this Telnet session. This is not the fully qualified name. IP Address The IP Address column contains the IP address of the TCP/IP stack for the row of data. Host Name The Host Name column contains the host name of the TCP/IP stack. Remote IP Address The Remote IP Address column contains the remote IP address for this Telnet session. Remote Port The Remote Port column contains the remote port for this Telnet session. Local IP Address The Local IP Address column contains the local IP address for this Telnet session. Local Port The Local Port column contains the local port for this Telnet session. Average Response Time The Average Response Time column contains the sliding-window average total response time measured in milliseconds. Average IP Response Time The Average IP Response Time column contains the sliding-window average IP response time measured in milliseconds. Average SNA Response Time The Average SNA Response Time column contains the sliding-window average SNA response time measured in milliseconds. Transactions The Transactions column contains the total number of transactions that were detected during the most recent interval. Connection Established The Connection Established column contains the date and time that the connection was established. Response Time Counts by Time Bucket The Response Time Counts by Time Bucket view includes session data for TN3270 sessions from a remote TN3270 client to a z/os TN3270 server. This data is available only for TN3270 servers running on z/os 1.5 (or later) systems. Response Time Counts by Time Bucket data are displayed if the network systems programmer chose to collect TN3270 performance data when creating the z/os monitor configuration. A local IP address and port number and a remote IP address and port number uniquely define the TN3270 session. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you 84 IBM Tivoli Monitoring for Network Performance: Operator Guide

99 chose to monitor within those images. These views include data about availability, average response time, and response counts by time buckets. Figure 44 displays this view. Figure 44. Response Time Counts by Time Bucket The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Telnet LU Name The Telnet LU Name column contains the LU name that represents the client for this Telnet session. SNA Application Name The SNA Application Name column contains the LU name of the SNA application for this Telnet session. This is not the fully qualified name. Chapter 7. Network performance views 85

100 IP Address The IP Address column contains the IP address of the TCP/IP stack for the row of data. Host Name The Host Name column contains the host name of the TCP/IP stack. Remote IP Address The Remote IP Address column contains the remote IP address for this Telnet session. Remote Port The Remote Port column contains the remote port for this Telnet session. Local IP Address The Local IP Address column contains the local IP address for this Telnet session. Local Port The Local Port column contains the local port for this Telnet session. Bucket 1 Count The Bucket 1 Count column contains the count of the transaction response times that occurred in the range of response times that is defined for bucket 1. Bucket 1 Upper Boundary The Bucket 1 Upper Boundary column contains the upper boundary for the range of transaction response times defined for Bucket 1. Transaction response times that are less than or equal to this value are represented in the Bucket 1 count. Response times are measured in milliseconds. Bucket 2 Count The Bucket 2 Count column contains the count of the transaction response times that occurred in the range of response times that is defined for bucket 2. Bucket 2 Upper Boundary The Bucket 2 Upper Boundary column contains the upper boundary for the range of transaction response times defined for Bucket 2. Transaction response times that are less than or equal to this value and greater than the bucket 1 upper boundary are represented in the Bucket 2 count. Response times are measured in milliseconds. Bucket 3 Count The Bucket 3 Count column contains the count of the transaction response times that occurred in the range of response times that is defined for bucket 3. Bucket 3 Upper Boundary The Bucket 3 Upper Boundary column contains the upper boundary for the range of transaction response times defined for Bucket 3. Transaction response times that are less than or equal to this value and greater than the Bucket 2 upper boundary are represented in the Bucket 3 count. Response times are measured in milliseconds. Bucket 4 Count The Bucket 4 Count column contains the count of the transaction response times that occurred in the range of response times that is defined for bucket IBM Tivoli Monitoring for Network Performance: Operator Guide

101 View HPR and EE Bucket 4 Upper Boundary The Bucket 4 Upper Boundary column contains the upper boundary for the range of transaction response times defined for Bucket 4. Transaction response times that are less than or equal to this value and greater than the Bucket 3 upper boundary are represented in the Bucket 4 count. Transaction response times that are greater than this value are represented in the Bucket 5 count. Response times are measured in milliseconds. Bucket 5 Count The Bucket 5 Count column contains the count of the transaction response times that occurred in the range of response times that is defined for bucket 5. Under the View HPR and EE entry in the portfolio, you find the following entries: v HPR Availability and Response v HPR Throughput and Traffic on page 92 v EE Availability and Response on page 94 v EE Throughput and Traffic on page 96 HPR Availability and Response The HPR Availability and Response view displays performance data for High-Performance Routing (HPR) Rapid Transfer Protocol (RTP) connections (pipes) when one endpoint of an HPR connection resides on a monitored z/os system image. An HPR connection is uniquely defined by a system name and the name of a local RTP physical unit (PU). HPR RTP connection data are displayed if the network systems programmer chose to collect HPR and Enterprise Extender (EE) performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and HPR RTP connections exist. Figure 45 on page 88 displays this view. Chapter 7. Network performance views 87

102 Figure 45. HPR Availability and Response The following fields are displayed in this view. There is an additional button, SNA Links, that is described after these field descriptions. Local RTP PU Name The Local RTP PU Name column contains the name of the local RTP physical unit (PU). Local CP Name The Local CP Name column contains the name of the local CP. Remote CP Name The Remote CP Name column contains the remote CP name. Sysplex Name The Sysplex Name column contains the name of the z/os sysplex that is associated with this z/os environment. System Name The System Name column contains the name of the z/os environment that is associated with the local IP address. Class of Service Name The Class of Service Name column contains the name of the original class of service for this RTP pipe. 88 IBM Tivoli Monitoring for Network Performance: Operator Guide

103 Local TCID The Local TCID column contains the transport connection identifier (TCID) for the local RTP connection. Remote TCID The Remote TCID column contains the transport connection identifier (TCID) for the remote RTP connection. Activation Time The Activation Time column contains the date and time when this RTP pipe was activated. SNA Links The SNA Links column contains the number of SNA links that are traversed by this RTP pipe. Sessions Using the Pipe The Sessions Using the Pipe column contains the number of LU to LU sessions that are using this RTP pipe. Round Trip Time Variance The Round Trip Time Variance column contains the average round-trip time variance in milliseconds or the smooth deviation for this RTP pipe. ARB Mode The ARB Mode column contains the current status of this RTP pipe. The current status of this RTP pipe is expressed as: v Green (data transmission is occurring without significant network congestion v Yellow (data transmission is being slowed because network congestion has been detected) v Red (data transmission is being affected by severe network congestion, which might result in packet loss) Current ARB Threshold The Current ARB Threshold column contains the current receiver threshold in microseconds. This threshold is not applicable for the original ARB algorithm. Minimum ARB Threshold The Minimum ARB Threshold column contains the minimum receiver threshold in microseconds. This threshold is not applicable for the original ARB algorithm. Maximum ARB Threshold The Maximum ARB Threshold column contains the maximum receiver threshold in microseconds. This threshold is not applicable for the original ARB algorithm. ALIVE Timer The ALIVE Timer column contains the value of the liveness timer. Path Switches The Path Switches column contains the number of path switches that were initiated by the remote or local nodes during the most recent interval. Path Switch Time Stamp The Path Switch Time Stamp column contains the date and time when the most recent path switch occurred. Chapter 7. Network performance views 89

104 Path Switch Trigger The Path Switch Trigger column contains the reason for the most recent path switch. Valid values for Path Switch Trigger are: v TGINOP v SRT Retries v No NCB v Modify RTP Command v Auto Path Switch v Partner initiated Packets Retransmitted The Packets Retransmitted column contains the number of HPR network-layer packets that were retransmitted during the most recent interval. Percent Packets Retransmitted The Percent Packets Retransmitted column contains the percent of HPR network-layer packets that were retransmitted during the most recent interval. Packet Retransmission Rate The Packet Retransmission Rate column contains the number of HPR packets that were retransmitted per second during the most recent interval. With the SNA Links button, you can display information from the Route Selection Control Vector (RSCV), which describes the path through the Advanced Peer-to-Peer Networking (APPN) network that the selected High-Performance Routing (HPR) session has taken. Selecting a connection and clicking SNA Links displays the view shown in Figure 46 on page 91: 90 IBM Tivoli Monitoring for Network Performance: Operator Guide

105 Figure 46. SNA Links view The SNA Links Comprising HPR RTP Pipe Detail View displays detailed information about the SNA links that comprise the selected RTP pipe for HPR. The following fields are displayed in this view: Local RTP PU Name The Local RTP PU Name column contains the name of the local RTP PU. Local CP Name The Local CP Name column contains the name of the local CP. SNA Links The SNA Links column contains the network ID and the CP name of a link in the RTP pipe. Collection Time The Collection Time column contains the date and time that the data in this row was collected and stored in the Tivoli Monitoring for Network Performance database. The format of date and time is determined by the date and time formats specified in User Preferences. The time stamp reflects the time zone specified in User Preferences. Chapter 7. Network performance views 91

106 HPR Throughput and Traffic The HPR Throughput and Traffic view displays performance data for HPR RTP connections (pipes) when one endpoint of an HPR connection resides on a monitored z/os system image. An HPR connection is uniquely defined by a system name and the name of a local RTP physical unit (PU). HPR RTP connection data are displayed if the network systems programmer chose to collect HPR and EE performance data when creating the z/os monitor configuration. If you selected this view from the portfolio, then the view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for which you chose to monitor HPR and EE performance data. If you accessed this view by clicking HPR RTP Pipes in the Enterprise Extender Link Availability and Response view, then the view includes only data for the EE link that you selected. Figure 47 displays this view. Figure 47. HPR Throughput and Traffic The following fields are displayed in this view: 92 IBM Tivoli Monitoring for Network Performance: Operator Guide

107 Local RTP PU Name The Local RTP PU Name column contains the name of the local RTP physical unit (PU). Local CP Name The Local CP Name column contains the name of the local CP. Remote CP Name The Remote CP Name column contains the remote CP name. Sysplex Name The Sysplex Name column contains the name of the z/os sysplex that is associated with this z/os environment. System Name The System Name column contains the name of the z/os environment that is associated with the local IP address. Class of Service Name The Class of Service Name column contains the name of the original class of service for this RTP pipe. TCID The TCID column contains the local transport connection identifier (TCID). Initial Throughput Rate The Initial Throughput Rate column contains the initial throughput rate for this RTP pipe. The rate is specified in kilobytes per second. Actual Throughput Rate The Actual Throughput Rate column contains the actual throughput rate for this RTP pipe. The rate is calculated as a sliding-window throughput rate, and is specified in kilobytes per second. Allowed Throughput Rate The Allowed Throughput Rate column contains the allowed throughput rate for this RTP pipe. The rate is calculated as a sliding-window throughput rate, and is specified in kilobytes per second. Transmit Bytes Rate The Transmit Byte Rate column contains the number of bytes that were transmitted per second during the most recent interval. Receive Bytes Rate The Receive Byte Rate column contains the number of bytes that were received per second during the most recent interval. Transmit Packet Rate The Transmit Packet Rate column contains the number of HPR network-layer packets that were sent per second during the most recent interval. Receive Packet Rate The Receive Packet Rate column contains the number of HPR network-layer packets that were sent per second during the most recent interval. Bytes Sent The Bytes Sent column contains the number of SNA bytes that were sent during the most recent interval. Bytes Received The Bytes Received column contains the number of SNA bytes that were received during the most recent interval. Chapter 7. Network performance views 93

108 Packets Sent The Packets Sent column contains the number of HPR network-layer packets that were sent during the most recent interval. Packets Received The Packets Received column contains the number of HPR network-layer packets that were received during the most recent interval. Packets Queued The Packets Queued column contains the number of HPR network-layer packets that are in the waiting-to-send queue. Out-of-Sequence Buffers The Out-of-Sequence Buffers column contains the number of buffers that are in the out-of-sequence queue. Unacknowledged Buffers The Unacknowledged Buffers column contains the number of buffers that are in the unacknowledged queue. Unacknowledged Buffers High-Water Mark The Unacknowledged Buffers High-Water Mark column contains the high-water mark for the Unacknowledged Buffers column. This column also includes the date and time when the value of the high-water mark was collected. EE Availability and Response The EE Availability and Response view displays performance data for the EE links when the IP address for one end of an EE link resides on a monitored z/os system image. An EE link is uniquely defined by the local IP address and remote IP address. EE link data are displayed if the network systems programmer chose to collect HPR and EE performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and EE links exist. Figure 48 on page 95 displays this view. 94 IBM Tivoli Monitoring for Network Performance: Operator Guide

109 Figure 48. EE Availability and Response The following fields are displayed in this view. There is an additional button, HPR RTP Pipes, that you can use to display HPR RTP availability and response time data for the EE link that you selected. Local IP Address The Local IP Address column contains the local IP address. Remote IP Address The Remote IP Address column contains the remote IP address. Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os system that is associated with the local IP address. RTP Pipes The RTP Pipes column contains the number of RTP pipes that are flowing over this EE connection. Sessions The Sessions column contains the number of LU to LU sessions that are flowing over this EE connection. Chapter 7. Network performance views 95

110 Packets Retransmitted The Packets Retransmitted column contains the number of HPR network-layer packets that were retransmitted during the most recent interval. Percent of Packets Retransmitted The Percent of Packets Retransmitted column contains the percent of HPR network-layer packets that were retransmitted during the most recent interval. Packet Retransmission Rate The Packet Retransmission Rate column contains the number of HPR network-layer packets that were retransmitted per second over this EE connection during the most recent interval. EE Throughput and Traffic The EE Throughput and Traffic view displays performance data for the EE links when the IP address for one end of an EE link resides on a monitored z/os system image. An EE link is uniquely defined by the local IP address and remote IP address. EE link data are displayed if the network systems programmer chose to collect HPR and EE performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and EE links exist. Figure 49 on page 97 displays this view. 96 IBM Tivoli Monitoring for Network Performance: Operator Guide

111 Figure 49. EE Throughput and Traffic The following fields are displayed in this view. There is an additional button, Port Details, that is described after these field descriptions. Local IP Address The Local IP Address column contains the local IP address. Remote IP Address The Remote IP Address column contains the remote IP address. Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os system that is associated with the local IP address. Transmit Bytes Rate The Transmit Bytes Rate column contains the number of bytes that were sent per second during the most recent interval. Receive Bytes Rate The Receive Bytes Rate column contains the number of bytes that were received per second during the most recent interval. Chapter 7. Network performance views 97

112 Transmit Packet Rate The Transmit Packet Rate column contains the number of HPR network-layer packets that were sent per second during the most recent interval. Receive Packet Rate The Receive Packet Rate column contains the number of HPR network-layer packets that were received per second during the most recent interval. Bytes Sent The Bytes Sent column contains the number of SNA bytes that were sent during the most recent interval. Bytes Received The Bytes Received column contains the number of SNA bytes that were received during the most recent interval. Packets Sent The Packets Sent column contains the number of HPR network-layer packets that were sent during the most recent interval. Packets Received The Packets Received column contains the number of HPR network-layer packets that were received during the most recent interval. With the Port Details button, you can display detailed information for the port that is associated with a selected row of data. Selecting a link and clicking Port Details displays the view shown in Figure 50 on page 99: 98 IBM Tivoli Monitoring for Network Performance: Operator Guide

113 Figure 50. Port Details view The Enterprise Extender Link Throughput and Traffic Detail Port View displays performance data for the EE links where either the local IP address or the remote IP address for that EE link resides on a z/os system image. An EE link is uniquely defined by the local IP address and remote IP address. EE link data is displayed if the network system programmer chose to collect HPR and EE performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and EE links exist. The following fields are displayed in this view: Local IP Address The Local IP Address column contains the local IP address. Remote IP Address The Remote IP Address column contains the remote IP address. Local/Remote Port The Local/Remote Port column contains the local and remote port. The local port is always the same number as the remote port. Chapter 7. Network performance views 99

114 View Interface Data Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TOS Value The TOS Value column contains the type of service that is used for TCP/IP communication. These are the possible TOS values: v Low v Medium v High v Network v Signals Transmit Bytes Rate The Transmit Bytes Rate column contains the number of Systems Network Architecture (SNA) bytes that were sent per second for the type of service (TOS) value during the most recent time interval. Receive Bytes Rate The Receive Bytes Rate column contains the number of Systems Network Architecture (SNA) bytes that were received per second for the type of service (TOS) value during the most recent time interval. Transmit Packet Rate The Transmit Packet Rate column contains the number of HPR network-layer packets that were sent per second for the type of service (TOS) value during the most recent time interval. Receive Packet Rate The Receive Packet Rate column contains the number of HPR network-layer packets that were received per second for the type of service (TOS) value during the most recent time interval. Bytes Sent The Bytes Sent column contains the number of SNA bytes that were sent during the most recent time interval. Bytes Received The Bytes Received column contains the number of SNA bytes that were received during the most recent time interval. Packets Sent The Packets Sent column contains the number of HPR network layer packets that were sent during the most recent time interval. Packets Received The Packets Received column contains the number of HPR network layer packets that were received during the most recent time interval. Click Close to return to the table for which you are viewing details. Under the View Interface Data entry in the portfolio, you find the following entries: v Status on page 101 v Unicast Performance Metrics on page IBM Tivoli Monitoring for Network Performance: Operator Guide

115 v Multicast/Broadcast Performance Metrics on page 105 Status The Status view presents status data for the z/os IP interfaces that are defined in the z/os Communications Server TCP/IP interface array. An interface is uniquely defined by a z/os system name, a TCP/IP job name, and an interface name. Interface performance data are displayed if the network systems programmer chose to collect interface performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and IP interfaces exist. Figure 51 displays this view. Figure 51. Status The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. Chapter 7. Network performance views 101

116 System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Name The Name column contains the name of the interface, which was assigned by the local device. Description The Description column contains information about the interface. This information should include the name of the manufacturer, the product name, and the version of the interface hardware/software. Type The type of interface. Additional values for Interface Type (iftype) are assigned by the Internet Assigned Numbers Authority (IANA). To find the most recent list of valid Interface Types, refer to Physical Address The Physical Address column contains the address of the interface at its protocol sublayer. Physical addresses are displayed for the following types of devices only: v LAN Channel Station (LCS) Ethernet, token ring, and Fiber Distributed Data Interface (FDDI) devices v Multi Path Channel IPA (MPCIPA) Ethernet and token ring devices v Asynchronous Transfer Mode (ATM) devices For any other device type, the column is blank. Current State The Current State column contains the current operational state of the interface. The valid values for Current State are: v Up v Down v Testing v Unknown v Dormant v NotPresent v LowerLayerDown MTU The MTU (the maximum transmission unit) column contains the size of the largest packet that can be sent or received on the interface. This value is specified in octets. For interfaces that are used for transmitting network datagrams, this is the size of the largest network datagram that can be sent on the interface. Data Rate Capacity The Data Rate Capacity column contains an estimate of the current data rate capacity of the interface. 102 IBM Tivoli Monitoring for Network Performance: Operator Guide

117 Unicast Performance Metrics The Unicast Performance Metrics view displays performance data for the z/os interfaces that are defined in the z/os Communications Server TCP/IP interface array. This view includes network traffic to and from unicast addresses. An interface is uniquely defined by a z/os system name, a TCP/IP job name, and an interface name. Interface performance data are displayed if the network systems programmer chose to collect interface performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and IP interfaces exist. Figure 52 displays this view. Figure 52. Unicast Performance Metrics The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. Chapter 7. Network performance views 103

118 System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. Name The Name column contains the name of the interface, which was assigned by the local device. Octets Transmitted The Octets Transmitted column contains the total number of octets, including framing characters, that were transmitted out of the interface during the most recent interval. Octets Received The Octets Received column contains the total number of octets, including framing characters, that were received on the interface during the most recent interval. Transmit Packet Rate The Transmit Packet Rate column contains the number of packets that were sent per second during the most recent interval. This rate applies to packets that higher-level protocols requested be transmitted, which were not addressed to a multicast or broadcast address at this sublayer. The rate includes packets that were discarded or not sent. Receive Packet Rate The Receive Packet Rate column contains the number of packets that were received per second during the most recent interval. This rate applies to packets that were delivered by this sublayer to a higher sublayer, which were not addressed to a multicast or broadcast address at this sublayer. Bandwidth Utilization The Bandwidth Utilization column contains the total percentage of bandwidth that was used during the most recent interval. This value is the sum of the Transmit Utilization and Receive Utilization metric values. Transmit Utilization The Transmit Utilization column contains the percentage of bandwidth that was being used to transmit data during the most recent interval. Receive Utilization The Receive Utilization column contains the percentage of bandwidth that was being used to receive data during the most recent interval. Inbound Packets Discarded The Inbound Packets Discarded column contains the number of inbound packets that were discarded during the most recent interval. This number includes packets that were chosen to be discarded even though no errors had been detected that would prevent them from being transmitted. One reason for discarding packets could be to free buffer space. Inbound Discard Rate The Inbound Discard Rate column contains the number of inbound packets that were discarded per second during the most recent interval. This rate applies to packets that were chosen to be discarded even though no errors had been detected that would prevent them from being transmitted. One reason for discarding packets could be to free buffer space. Outbound Packets Discarded The Outbound Packets Discarded column contains the number of outbound packets that were discarded during the most recent interval. This 104 IBM Tivoli Monitoring for Network Performance: Operator Guide

119 number includes packets that were chosen to be discarded even though no errors had been detected that would prevent them from being delivered to a higher-layer protocol. One reason for discarding such packets could be to free buffer space. Outbound Discard Rate The Outbound Discard Rate column contains the number of outbound packets that were discarded per second during the most recent interval. This rate applies to packets that were chosen to be discarded even though no errors had been detected that would prevent them from being delivered to a higher-layer protocol. One reason for discarding such packets could be to free buffer space. Percent Packets Discarded The Percent Packets Discarded column contains the percentage of total interface packets, both transmitted and received, that were discarded during the most recent interval. Outbound Packets in Error The Outbound Packets in Error column contains the number of outbound packets that, because of errors, could not be transmitted during the most recent interval. Transmit Error Rate The Transmit Error Rate column contains the number of outbound packets or transmission units per second that, because of errors, could not be transmitted during the most recent interval. Percent Outbound Packets in Error The Percent Outbound Packets in Error column contains the percentage of outbound packets that, because of errors, could not be transmitted during the most recent interval. Inbound Packets in Error The Inbound Packets in Error column contains the number of inbound packets that, because of errors, could not be received during the most recent interval. Receive Error Rate The Receive Error Rate column contains the number of inbound packets or transmission units per second that, because of errors, could not be received during the most recent interval. Percent Inbound Packets in Error The Percent Inbound Packets in Error column contains the percentage of inbound packets that could not be received because of errors during the most recent interval. Percent Packets in Error The Percent Packets in Error column contains the percentage of total interface packets, both transmitted and received, that were in error during the most recent interval. Multicast/Broadcast Performance Metrics The Multicast/Broadcast Performance Metrics view displays performance data for the z/os interfaces that are defined in the z/os Communications Server TCP/IP interface array. This view includes network traffic to and from multicast and broadcast addresses. Chapter 7. Network performance views 105

120 An interface is uniquely defined by a z/os system name, a TCP/IP job name, and an interface name. Interface performance data are displayed if the network systems programmer chose to collect interface performance data when creating the z/os monitor configuration. This view includes data for all the z/os images where the Tivoli Monitoring for Network Performance monitor is running and IP interfaces exist. Figure 53 displays this view. Figure 53. Multicast/Broadcast Performance Metrics The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. 106 IBM Tivoli Monitoring for Network Performance: Operator Guide

121 Name View Adapter Data The Name column contains the name of the interface, which was assigned by the local device. Transmit Packet Rate The Transmit Packet Rate column contains the number of packets that were transmitted per second to a broadcast/multicast address during the most recent interval. Receive Packet Rate The Receive Packet Rate column contains the number of received broadcast/multicast packets that were delivered per second to a higher layer protocol during the most recent interval. The Port Status view displays performance data for fast Ethernet or gigabit Ethernet OSA Express adapters that are installed in your enterprise. An OSA Express adapter port is uniquely defined by its burnt-in MAC address. OSA adapter performance data are displayed if the network systems programmer chose to collect OSA performance data when creating the z/os monitor configuration. This view includes data for all OSA Express adapters that are installed on the central electronics complex (CEC). Figure 54 on page 108 displays this view. Chapter 7. Network performance views 107

122 Figure 54. Port Status The following fields are displayed in this view. There are two additional buttons, Utilization and Throughput and Ethernet Throughput, that are described after these field descriptions. Channel ID The Channel ID column contains the channel path identifier (CHPID) that corresponds to this OSA Express Adapter. Port Name The Port Name column contains the name of the port as used by TCP/IP. This value is set on the LINK statement. Port Number The Port Number column contains the physical port number for this port. For Gigabit and Fast Ethernet, the value can only be 0. Burnt-in MAC Address The Burnt-in MAC Address column contains the burnt-in MAC address on the OSA. The MAC address is a 6-byte octet string with values in canonical format. Current MAC Address The Current MAC Address column contains the MAC address that is in use on the OSA. 108 IBM Tivoli Monitoring for Network Performance: Operator Guide

123 Feature Type The Feature Type column contains the physical port type. Speed and Mode The Speed and Mode column contains a value that indicates the actual speed and mode in which the OSA is running. The unit of measurement is megabits per second. The list of valid values for Speed and Mode are: v Unknown v TenMbHalfDuplex v TenMbFullDuplex v OneHundredMbHalfDuplex v OneHundredMbFullDuplex v OneThousandMbFullDuplex Feature Shared The Feature Shared column contains an indicator of whether this OSA-Express feature is shared across multiple images. The value in this field is set to Yes if this OSA-Express feature is shared across multiple images. Otherwise, the value is No. PCI Bus Utilization The PCI Bus Utilization column contains the average percentage of time that the PCI bus was utilized to transfer data. The measurement is made over an hour interval. Processor Utilization The Processor Utilization column contains average percentage of time that the processor was utilized to transfer data. The measurement is made over an hour interval. With the Utilization and Throughput button, you can display detailed information about the processor utilization and throughput for the selected OSA Adapter Port. Selecting an adapter port and clicking Utilization and Throughput displays the view shown in Figure 55 on page 110: Chapter 7. Network performance views 109

124 Figure 55. Utilization and Throughput for a Selected OSA Adapter Port The OSA Adapter Processor Utilization and Throughput view displays performance data for fast Ethernet or gigabit Ethernet OSA Express adapters that are installed in your enterprise. An OSA Express adapter port is uniquely defined by its burnt-in MAC address. OSA adapter performance data is displayed if the network system programmer chose to collect OSA performance data when creating the z/os monitor configuration. This view includes data for selected OSA Express adapters that are installed on the CEC. The following fields are displayed in this view: Burnt-in MAC Address The Burnt-in MAC Address column contains the burnt-in MAC address on the OSA. The MAC address is a 6-byte octet string with values in canonical format. Channel ID The Channel ID column contains the channel path identifier (CHPID) that corresponds to this OSA Express Adapter. 110 IBM Tivoli Monitoring for Network Performance: Operator Guide

125 Port Name The Port Name column contains the name of the port as used by TCP/IP. This value is set on the LINK statement. Image Number The Image Number column contains the system image ID on the CEC. Valid values are Processor Utilization 1 Min The Processor Utilization 1 Min column contains the average percentage of time over a 1-minute interval that the processor was utilized to transfer data for the specified z/os image. Processor Utilization 5 Min The Processor Utilization 5 Min column contains the average percentage of time over a 5-minute interval that the processor was utilized to transfer data for the specified z/os image. Processor Utilization 60 Min The Processor Utilization 60 Min column contains the average percentage of time over a 60-minute interval that the processor was utilized to transfer data for the specified z/os image. Inbound 1 Min The Inbound 1 Min column contains the average number of inbound kilobytes that were processed for a specific image over a 1-minute interval. Inbound 5 Min The Inbound 5 Min column contains the average number of inbound kilobytes that were processed for a specific image over a 5-minute interval. Inbound 60 Min The Inbound 60 Min column contains the average number of inbound kilobytes that were processed for a specific image over a 60-minute interval. Outbound 1 Min The Outbound 1 Min column contains the average number of outbound kilobytes that were processed for a specific image over a 1-minute interval. Outbound 5 Min The Outbound 5 Min column contains the average number of outbound kilobytes that were processed for a specific image over a 5-minute interval. Outbound 60 Min The Outbound 60 Min column contains the average number of outbound kilobytes that were processed for a specific image over a 60-minute interval. Click Close to return to the table for which you are viewing details. With the Ethernet Throughput button, you can display detailed information about the Ethernet throughput for the selected OSA Adapter Port. Selecting an adapter port and clicking Ethernet Throughput displays the view shown in Figure 56 on page 112: Chapter 7. Network performance views 111

126 Figure 56. Ethernet Throughput for a Selected OSA Adapter Port The OSA Ethernet Throughput view displays performance data for fast Ethernet, gigabit Ethernet, or 1000Base-T Ethernet OSA Express adapters that are installed in your enterprise. An OSA Express adapter port is uniquely defined by its burnt-in MAC address. OSA adapter performance data is displayed if the network system programmer chose to collect OSA performance data when creating the z/os monitor configuration. This view includes data for selected OSA Express adapters that are installed on the CEC. The following fields are displayed in this view: Burnt-in MAC Address The Burnt-in MAC Address column contains the burnt-in MAC address on the OSA. The MAC address is a 6-byte octet string with values in canonical format. Channel ID The Channel ID column contains the channel path identifier (CHPID) that corresponds to this OSA Express Adapter. 112 IBM Tivoli Monitoring for Network Performance: Operator Guide

127 View Memory Data Port Name The Port Name column contains the name of the port as used by TCP/IP. This value is set on the LINK statement. Packets Transmitted The Packets Transmitted column contains the number of packets that have been transmitted by the OSA during the most recent time interval. The value that is displayed in this column is reset when the OSA port is reset. Packets Received The Packets Received column contains the number of packets that have been received by the OSA during the most recent time interval. The value that is displayed in this column is reset when the OSA port is reset. Multicast Frames Received The Multicast Frames Received column contains the number of multicast frames that have been received by the OSA during the most recent time interval. Broadcast Frames Received The Broadcast Frames Received column contains the number of broadcast frames that have been received by the OSA during the most recent time interval. Non-IP Frames Received The Non-IP Frames Received column contains the number of non-ip frames that were received by the OSA during the most recent time interval. Click Close to return to the table for which you are viewing details. Under the View Memory Data entry in the portfolio, you find the following entries: v TCP/IP Statistics v CSM Storage Summary on page 116 v CSM Storage Monitoring on page 117 TCP/IP Statistics The TCP/IP Statistics view displays the TCP/IP storage statistics for each TCP/IP stack. TCP/IP memory statistics are displayed if the network systems programmer chose to collect TCP/IP Memory Usage Data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running and for the TCP/IP stacks that you chose to monitor within those images. Figure 57 on page 114 displays this view. Chapter 7. Network performance views 113

128 Figure 57. TCP/IP Statistics The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. TCP/IP Job Name The TCP/IP Job Name column contains the name of the TCP/IP job. IP Address The IP Address column contains the IP address of the TCP/IP stack. Host Name The Host Name column contains the host name of the TCP/IP stack. ECSA Storage Allocated The ECSA Storage Allocated column contains the number of ECSA storage bytes that is currently allocated. Maximum ECSA Storage Allowed The Maximum ECSA Storage Allowed column contains the maximum 114 IBM Tivoli Monitoring for Network Performance: Operator Guide

129 number of ECSA storage bytes that is allowed. This number is specified on the GLOBALCONFIG statement in the TCP/IP profile. A value of zero indicates that there is no limit. Maximum ECSA Storage Allocated The Maximum ECSA Storage Allocated column contains the maximum number of ECSA storage bytes that has been allocated since the TCP/IP stack was started. Percent ECSA Allocated Storage The Percent ECSA Allocated Storage column contains the percentage of ECSA storage that is currently allocated compared to the maximum ECSA storage that is allowed. Authorized Private Storage Allocated The Authorized Private Storage Allocated column contains the number of authorized private subpool storage bytes that is currently allocated. Maximum Authorized Private Storage Allocated The Maximum Authorized Private Storage Allocated column contains the maximum number of authorized private subpool storage bytes that has been allocated since the TCP/IP stack was started. Percent Authorized Private Allocated Storage The Percent Authorized Private Allocated Storage column contains the percentage of authorized private storage that is currently allocated compared to the maximum authorized private storage that is allowed. Maximum Authorized Private Storage Allowed The Maximum Authorized Private Storage Allowed column contains the maximum number of authorized private subpool storage bytes that is allowed. This number is specified on the GLOBALCONFIG statement in the TCP/IP profile. A value of 0 indicates that there is no limit. Chapter 7. Network performance views 115

130 CSM Storage Summary The CSM Storage Summary view displays data for Communications Storage Manager (CSM) buffer pools that are shared between SNA and TCP/IP for each z/os system image. CSM buffer pool data are displayed if the network systems programmer chose to collect CSM Buffer Data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running. Figure 58 displays this view. Figure 58. CSM Storage Summary The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. Storage Allocated Across ECSA Pools The Storage Allocated Across ECSA Pools column contains the cumulative storage that has been allocated across all ECSA pools. The storage is specified in kilobytes. 116 IBM Tivoli Monitoring for Network Performance: Operator Guide

131 Maximum ECSA Storage Allowed The Maximum ECSA Storage Allowed column contains the maximum number of ECSA storage bytes. Percent ECSA Allocated Storage The Percent ECSA Allocated Storage column contains the percentage of ECSA storage that is currently allocated compared to the maximum ECSA storage that is allowed. Storage Allocated Across DSP Pools The Storage Allocated Across DSP Pools column contains the cumulative storage that has been allocated across all DSP pools. The storage is specified in kilobytes. Storage Allocated Across Pools The Storage Allocated Across Pools column contains the cumulative storage that has been allocated across all pools. The storage is specified in kilobytes. CSM Storage Monitoring The CSM Storage Monitoring view displays data for Communications Storage Manager (CSM) buffer pools that are shared between SNA and TCP/IP for each z/os system image. CSM buffer pool data are displayed if the network systems programmer chose to collect CSM Buffer Data when creating the z/os monitor configuration. This view includes data for all of the z/os images where the Tivoli Monitoring for Network Performance monitor is running. Figure 59 on page 118 displays this view. Chapter 7. Network performance views 117

132 Figure 59. CSM Storage Monitoring The following fields are displayed in this view: Sysplex Name The Sysplex Name column contains the name of the sysplex to which this z/os system belongs. System Name The System Name column contains the name of the z/os environment. Storage Allocated to... These fields contain the number of kilobytes of Communications Storage Manager (CSM) storage that is allocated to each of the respective pools listed here: v ECSA4K v ECSA16K v ECSA32K v ECSA60K v ECSA180K v DSP4K v DSP16K v DSP32K v DSP60K v DSP180K 118 IBM Tivoli Monitoring for Network Performance: Operator Guide