Junos Space. Junos Space Frequently Asked Questions. Release Modified: Copyright 2016, Juniper Networks, Inc.

Transcription

1 Junos Space Junos Space Frequently Asked Questions Release 14.1 Modified:

2 Juniper Networks, Inc Innovation Way Sunnyvale, California USA All rights reserved. Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice. Junos Space Junos Space Frequently Asked Questions 14.1 All rights reserved. The information in this document is current as of the date on the title page. YEAR 2000 NOTICE Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year However, the NTP application is known to have some difficulty in the year END USER LICENSE AGREEMENT The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks software. Use of such software is subject to the terms and conditions of the End User License Agreement ( EULA ) posted at By downloading, installing or using such software, you agree to the terms and conditions of that EULA. ii

3 Table of Contents About the Documentation ix Documentation and Release Notes ix Supported Platforms ix Documentation Conventions ix Documentation Feedback xi Requesting Technical Support xii Self-Help Online Tools and Resources xii Opening a Case with JTAC xii Part 1 FAQ Chapter 1 Junos Space Software Upgrade What Is the Supported Junos Space Release Upgrade Path? How Do I Back Up the Junos Space Software To the Database Before Upgrading? How Do I Upgrade Junos Space? Chapter 2 Junos Space User Interface What Web Browsers Does Junos Space User Interface Support? Which Web Browser Plug-Ins Does the Junos Space User Interface Require? Which Operating Systems Does the Junos Space User Interface Support? What Display Resolution Is Recommended for Running the Junos Space User Interface? Does the Junos Space User Interface Support Both HTTP and HTTPS? What URL Should Be Used to Access the Junos Space User Interface? What Is the Default Userid/Password for the Junos Space User Interface? Chapter 3 Device Management Which Juniper Networks Platforms Does Junos Space Network Management Platform Software Support? What Junos Releases Are Supported in Different Junos Space Applications? What Minimum Configuration Do Network Devices Require for Junos Space Software to Manage Them? What Port on the Junos Space Node Does a Device Connect To? Does Using Junos Space Software to Discover Devices That Are Connected to AIS and SRC Affect Those Connections? IPv6 and Junos Space Chapter 4 Junos Space Appliance What Are the Hardware Specifications for the Junos Space JA1500 Appliance? What Configuration Does Junos Space Require to Run the Virtual Appliance? iii

4 Junos Space Frequently Asked Questions How do I Determine the Disk I/O Speed of a Node in the Junos Space Fabric? Can I Change the IP Address of a Junos Space Node That Has Been Deployed? After Installing a Junos Space Virtual Appliance, Why Do I Get a Login Incorrect Error When I Try to Log In to the Virtual Appliance from the Console? Chapter 5 Running Junos Space on NSM Installing the Junos Space Software on Network and Security Manager NSM Chapter 6 Fabric Management Can I Mix Hardware Appliances and Virtual Appliances When I Create a Fabric? Chapter 7 Troubleshooting Where Are the Log Files Required for Troubleshooting? Chapter 8 Topology How Does Junos Space Look For a Topology? How Is Topology Discovery Different from Device Discovery? What Are The Network Monitoring Topology Discovery Methods Supported for Different Device Families? Chapter 9 Adapters What are WW Junos OS devices? How Is Connecting to Devices Running on Worldwide Junos OS Different From Connecting to Those Running Domestic Junos OS? Chapter 10 High Availability What Steps Do I Need to Take When One of the High Availability Nodes in the Cluster Shows the Status Down? What Algorithm Does the Apache HTTP Load Balancer Use to Distribute Load Among Nodes in the Cluster? How Do I Determine Which Node in the Cluster Is Handling My Network Management Platform User Interface Session? How Do I Determine Which Device Connections Are Being Handled by a Node? How Can I Simulate a Virtual IP (VIP) Failover? Part 2 Index Index iv

5 List of Figures Part 1 FAQ Chapter 10 High Availability Figure 1: Using the netstat Command to SSH to the Console of a Node v

6 Junos Space Frequently Asked Questions vi

7 List of Tables About the Documentation ix Table 1: Notice Icons x Table 2: Text and Syntax Conventions x Part 1 FAQ Chapter 3 Device Management Table 3: Junos Space Network Management Platform Device Support Chapter 8 Topology Table 4: Topology Discovery Methods Supported Per Platform Device for Network Monitoring vii

8 Junos Space Frequently Asked Questions viii

9 About the Documentation Documentation and Release Notes Documentation and Release Notes on page ix Supported Platforms on page ix Documentation Conventions on page ix Documentation Feedback on page xi Requesting Technical Support on page xii Supported Platforms To obtain the most current version of all Juniper Networks technical documentation, see the product documentation page on the Juniper Networks website at If the information in the latest release notes differs from the information in the documentation, follow the product Release Notes. Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts. These books go beyond the technical documentation to explore the nuances of network architecture, deployment, and administration. The current list can be viewed at For the features described in this document, the following platforms are supported: JA2500 JA1500 Documentation Conventions Table 1 on page x defines notice icons used in this guide. ix

10 Junos Space Frequently Asked Questions Table 1: Notice Icons Icon Meaning Description Informational note Indicates important features or instructions. Caution Indicates a situation that might result in loss of data or hardware damage. Warning Alerts you to the risk of personal injury or death. Laser warning Alerts you to the risk of personal injury from a laser. Tip Indicates helpful information. Best practice Alerts you to a recommended use or implementation. Table 2: Text and Syntax Conventions Table 2 on page x defines the text and syntax conventions used in this guide. Convention Description Examples Bold text like this Represents text that you type. To enter configuration mode, type the configure command: user@host> configure Fixed-width text like this Italic text like this Represents output that appears on the terminal screen. Introduces or emphasizes important new terms. Identifies guide names. Identifies RFC and Internet draft titles. user@host> show chassis alarms No alarms currently active A policy term is a named structure that defines match conditions and actions. Junos OS CLI User Guide RFC 1997, BGP Communities Attribute Italic text like this Represents variables (options for which you substitute a value) in commands or configuration statements. Configure the machine s domain name: [edit] root@# set system domain-name domain-name x

11 About the Documentation Table 2: Text and Syntax Conventions (continued) Convention Description Examples Text like this Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components. To configure a stub area, include the stub statement at the [edit protocols ospf area area-id] hierarchy level. The console port is labeled CONSOLE. < > (angle brackets) Encloses optional keywords or variables. stub <default-metric metric>; (pipe symbol) Indicates a choice between the mutually exclusive keywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity. broadcast multicast (string1 string2 string3) # (pound sign) Indicates a comment specified on the same line as the configuration statement to which it applies. rsvp { # Required for dynamic MPLS only [ ] (square brackets) Encloses a variable for which you can substitute one or more values. community name members [ community-ids ] Indention and braces ( { } ) ; (semicolon) Identifies a level in the configuration hierarchy. Identifies a leaf statement at a configuration hierarchy level. [edit] routing-options { static { route default { nexthop address; retain; } } } GUI Conventions Bold text like this Represents graphical user interface (GUI) items you click or select. In the Logical Interfaces box, select All Interfaces. To cancel the configuration, click Cancel. > (bold right angle bracket) Separates levels in a hierarchy of menu selections. In the configuration editor hierarchy, select Protocols>Ospf. Documentation Feedback We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation. You can provide feedback by using either of the following methods: Online feedback rating system On any page of the Juniper Networks TechLibrary site at simply click the stars to rate the content, and use the pop-up form to provide us with information about your experience. Alternately, you can use the online feedback form at xi

12 Junos Space Frequently Asked Questions Send your comments to Include the document or topic name, URL or page number, and software version (if applicable). Requesting Technical Support Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or Partner Support Service support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC. JTAC policies For a complete understanding of our JTAC procedures and policies, review the JTAC User Guide located at Product warranties For product warranty information, visit JTAC hours of operation The JTAC centers have resources available 24 hours a day, 7 days a week, 365 days a year. Self-Help Online Tools and Resources For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features: Find CSC offerings: Search for known bugs: Find product documentation: Find solutions and answer questions using our Knowledge Base: Download the latest versions of software and review release notes: Search technical bulletins for relevant hardware and software notifications: Join and participate in the Juniper Networks Community Forum: Open a case online in the CSC Case Management tool: To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool: Opening a Case with JTAC You can open a case with JTAC on the Web or by telephone. Use the Case Management tool in the CSC at Call JTAC ( toll-free in the USA, Canada, and Mexico). xii

13 About the Documentation For international or direct-dial options in countries without toll-free numbers, see xiii

14 Junos Space Frequently Asked Questions xiv

15 PART 1 FAQ Junos Space Software Upgrade on page 3 Junos Space User Interface on page 5 Device Management on page 7 Junos Space Appliance on page 13 Running Junos Space on NSM3000 on page 17 Fabric Management on page 19 Troubleshooting on page 21 Topology on page 23 Adapters on page 25 High Availability on page 27 1

16 Junos Space Frequently Asked Questions 2

17 CHAPTER 1 Junos Space Software Upgrade What Is the Supported Junos Space Release Upgrade Path? on page 3 How Do I Back Up the Junos Space Software To the Database Before Upgrading? on page 3 How Do I Upgrade Junos Space? on page 4 What Is the Supported Junos Space Release Upgrade Path? Junos Space Network Management Platform Release supports an upgrade to 14.1R1 from the following releases : 13.3R1.9, 13.3R2.6, 13.1R P5.3, 13.1P6.3, and 13.1P1.14. Related Documentation How Do I Upgrade Junos Space? on page 4 How Do I Back Up the Junos Space Software To the Database Before Upgrading? on page 3 Upgrading Junos Space Software Overview How Do I Back Up the Junos Space Software To the Database Before Upgrading? To back up the database: 1. Select Network Management Platform > Administration > Database Backup and Restore > Database Backup. The Database Backup dialog box appears. 2. Choose to back up the database locally or remotely. 3. If you choose to back up the database locally, be sure to move the backup files to a safe location off of the Junos Space server. The local backup files are saved in /var/cache/jboss/backup. NOTE: Be sure to back up ALL of the files (db, index and ip) in the backup directory. 3

18 Junos Space Frequently Asked Questions Related Documentation What Is the Supported Junos Space Release Upgrade Path? on page 3 How Do I Upgrade Junos Space? on page 4 How Do I Upgrade Junos Space? NOTE: We recommend that you use Mozilla Firefox. See What Web Browsers Does Junos Space User Interface Support? on page 5. The What Is the Supported Junos Space Release Upgrade Path? on page 3 topic provides information about the release from which you can upgrade to the current release. NOTE: When you perform an upgrade on a single- or multi-node fabric, the installation status is shown during the installation process. For instructions on how to upgrade Junos Space Network Management Platform, refer to the Upgrading Junos Space Network Management Platform topic. Related Documentation What Is the Supported Junos Space Release Upgrade Path? on page 3 How Do I Back Up the Junos Space Software To the Database Before Upgrading? on page 3 4

19 CHAPTER 2 Junos Space User Interface What Web Browsers Does Junos Space User Interface Support? on page 5 Which Web Browser Plug-Ins Does the Junos Space User Interface Require? on page 5 Which Operating Systems Does the Junos Space User Interface Support? on page 6 What Display Resolution Is Recommended for Running the Junos Space User Interface? on page 6 Does the Junos Space User Interface Support Both HTTP and HTTPS? on page 6 What URL Should Be Used to Access the Junos Space User Interface? on page 6 What Is the Default Userid/Password for the Junos Space User Interface? on page 6 What Web Browsers Does Junos Space User Interface Support? The Junos Space user interface supports the following Web browsers: Mozilla Firefox versions 3.6 and later Internet Explorer versions 8.0 and 9.0 Google Chrome version 17 and later NOTE: Before you log in to Junos Space, ensure that the Adobe Flash version 10 or later plug-in is installed in your browser. NOTE: Chrome Frame plugin is required along with the Internet Explorer browser to use the Topology Discovery feature. Related Documentation Junos Space Frequently Asked Questions Which Web Browser Plug-Ins Does the Junos Space User Interface Require? The following plug-in is required: Flash Player 10 or later 5

20 Junos Space Frequently Asked Questions Chrome Frame plugin with the Internet Explorer browser. Which Operating Systems Does the Junos Space User Interface Support? The Junos Space user interface is accessed via a Web browser and there are no dependencies on the operating system. What Display Resolution Is Recommended for Running the Junos Space User Interface? The Junos Space user interface has been optimized for a display resolution of 1280x1024. If the resolution is lower, the complete Junos Space user interface screen cannot be displayed within the browser page and scroll bars will not appear. Does the Junos Space User Interface Support Both HTTP and HTTPS? No, the Junos Space software supports only HTTPS. What URL Should Be Used to Access the Junos Space User Interface? Access the Junos Space user interface through the URL where virtual-ip is the Virtual IP address assigned to the Junos Space Fabric. This IP address is assigned to the eth0:0 interface on the fabric node that hosts the active load balancer. WARNING: To avoid a BEAST TLS 1.0 attack, whenever you log in to Junos Space in a browser tab or window, make sure that tab or window was not previously used to access a non-https website. Best practice is to close your browser and relaunch it before logging in to Junos Space. Related Documentation Logging In to Junos Space What Is the Default Userid/Password for the Junos Space User Interface? The default username is super. The default password is juniper123. This user ID has system administrator privileges and has complete access to all user interface functionality. Related Documentation What URL Should Be Used to Access the Junos Space User Interface? on page 6 6

21 CHAPTER 3 Device Management Which Juniper Networks Platforms Does Junos Space Network Management Platform Software Support? on page 7 What Junos Releases Are Supported in Different Junos Space Applications? on page 11 What Minimum Configuration Do Network Devices Require for Junos Space Software to Manage Them? on page 12 What Port on the Junos Space Node Does a Device Connect To? on page 12 Does Using Junos Space Software to Discover Devices That Are Connected to AIS and SRC Affect Those Connections? on page 12 IPv6 and Junos Space on page 12 Which Juniper Networks Platforms Does Junos Space Network Management Platform Software Support? Table 3 on page 7 lists all the product series and devices supported by Junos Space Network Management Platform software. The Junos Space Network Management Platform release notes lists only the new devices that are supported with that release. Table 3: Junos Space Network Management Platform Device Support Product Series Devices ACX Series ACX1000 ACX1100 ACX2000 ACX2100 ACX2200 ACX4000 BX Series BX7000 7

22 Junos Space Frequently Asked Questions Table 3: Junos Space Network Management Platform Device Support (continued) Product Series Devices EX Series EX2200 EX3200 EX3300 EX4200 EX4200-Copper EX4300 EX4500 EX4550 EX G EX4600 EX6200 EX6210 EX8208 EX8216 EX9200 EX9204 EX9208 EX9214 EX Virtual Chassis EX3300-VC EX4200-VC EX4300-VC EX4500-VC EX4550-VC MIXED-MODE-EX-VC EX-XRE Firefly VSRX-Firefly 8

23 Chapter 3: Device Management Table 3: Junos Space Network Management Platform Device Support (continued) Product Series Devices J Series J2320 J2350 J4350 J6350 LN Series LN1000 LN2600 M Series M7i M10i M40e M120 M320 MCG Series MCG5000 MX Series MX5 MX10 MX40 MX80 MX104 MX240 MX480 MX960 MX2010 MX2020 MX Virtual Chassis MX-VC PTX Series PTX3000 PTX5000 9

24 Junos Space Frequently Asked Questions Table 3: Junos Space Network Management Platform Device Support (continued) Product Series Devices QFX Series QFX3000 QFX3000-G QFX3000-M QFX3500 QFX3600 QFX5100 QFX S QFX Virtual Chassis QFX-VC SRX Series SRX100 SRX110H-VB SRX210 SRX220 SRX240 SRX550 SRX650 SRX1400 SRX3400 SRX3600 SRX5400 SRX5600 SRX5800 X45-Major 3 - SW X44-D10-Minor-SW 10

25 Chapter 3: Device Management Table 3: Junos Space Network Management Platform Device Support (continued) Product Series Devices T Series T320 T640 T1600 T4000 TX Matrix TX Matrix Plus TXP-3D WLC Series WLC device What Junos Releases Are Supported in Different Junos Space Applications? The following Junos software releases are supported in different Junos Space applications: Junos OS Release 9.3 Junos OS Release 9.4 Junos OS Release 9.5 Junos OS Release 9.6 Junos OS Release 10.0 Junos OS Release 10.1 Junos OS Release 10.2 Junos OS Release 10.3 Junos OS Release 10.4 Junos OS Release 11.1 Junos OS Release 11.2 Junos OS Release 11.3 Junos OS Release 11.4 Junos OS Release 12.1 Junos OS Release 12.2 Junos OS Release 12.3 Junos OS Release 13.1 Junos OS Release

26 Junos Space Frequently Asked Questions Junos OS Release 13.3 Junos OS Release 14.1 What Minimum Configuration Do Network Devices Require for Junos Space Software to Manage Them? Junos Space software requires that the devices have the following minimum configuration as a prerequisite to discover and manage them: An in-band or out-of-band static management IP configured on the device. This IP address must be reachable from the Junos Space server. A user ID belonging to the superuser class exists on the device. The Junos Space software uses this user ID to authenticate the SSH connection with the device. SSH v2 is enabled on the device. You can use the following command to enable SSH v2 on the device: set system services ssh protocol-version v2 Ping and SNMP is enabled on the device. Ping and SNMP is used to confirm whether the device is reachable and whether it is a Juniper Networks device, before adding it to the system. SNMP is enabled on the device with appropriate read-only V1/V2C/V3 credentials if you plan to use SNMP to probe devices as part of the device discovery process. Related Documentation Discovering Devices What Port on the Junos Space Node Does a Device Connect To? Devices managed by Junos Space connect to port 7804 on the Junos Space node. Does Using Junos Space Software to Discover Devices That Are Connected to AIS and SRC Affect Those Connections? IPv6 and Junos Space No, using Junos Space software to discover devices that are connected to AIS and SRC does not affect the existing connections these devices might have. When Junos Space software discovers and manages these devices, it automatically configures them to connect to the Junos Space server by adding a new client entry under the system/services/outbound-ssh stanza. You can use Configuration Editor or Device Templates to configure IPv6 on devices running Junos Release 10.2 and above. 12

27 CHAPTER 4 Junos Space Appliance What Are the Hardware Specifications for the Junos Space JA1500 Appliance? on page 13 What Configuration Does Junos Space Require to Run the Virtual Appliance? on page 13 How do I Determine the Disk I/O Speed of a Node in the Junos Space Fabric? on page 15 Can I Change the IP Address of a Junos Space Node That Has Been Deployed? on page 15 After Installing a Junos Space Virtual Appliance, Why Do I Get a Login Incorrect Error When I Try to Log In to the Virtual Appliance from the Console? on page 15 What Are the Hardware Specifications for the Junos Space JA1500 Appliance? For the latest Junos Space JA1500 appliance hardware specifications, see the Junos Space Product Datasheet at Related Documentation Junos Space Appliance Overview Front Panel of a JA1500 Appliance Rear Panel of a JA1500 Appliance What Configuration Does Junos Space Require to Run the Virtual Appliance? In order to deploy a Junos Space Virtual Appliance, you must be running a VMware ESX server version 4.0 or later that can support a virtual machine with the following configuration: 64-bit Quad processor with at least 2.66 GHz Four virtual CPUs 16-GB RAM to configure the virtual appliance as a Junos Space node or 32 GB RAM to configure the virtual appliance as a fault monitoring and performance monitoring (FMPM) node 13

28 Junos Space Frequently Asked Questions NOTE: Though 16-GB RAM is sufficient for a Junos Space node, we recommend that you use 32-GB RAM for better performance. For an FMPM node, you need 32-GB RAM. One RJ-45 10/100/1000 Network Interface Connector 16-GB hard disk NOTE: Note: We recommend that you use disks with I/O speed of 200 Mbps or above. For information about determining I/O speed of a disk used in the Junos Space Virtual Appliance, see How do I Determine the Disk I/O Speed of a Node in the Junos Space Fabric? on page 15. When configuring the virtual appliance as a Junos Space node, you must add a minimum of 100-GB disk resources as follows for expanding the partitions: 40 GB for /var 25 GB for /var/log 15 GB for /tmp 20 GB for / When configuring the virtual appliance as a specialized or FMPM node, you must add a minimum of 200 GB disk resources as follows for expanding the partitions: 120 GB for /var 40 GB for /var/log 20 GB for /tmp 20 GB for / NOTE: The free space available in all the partitions should be monitored periodically and the available free disk space increased if required. The /var and /var/log partitions should be monitored more frequently as most of the data are stored in these partitions and space utilization is high. For information about disk space needed for installing a Junos Space application, refer to the respective application documentation available at Junos Space Software, Release For more information about configuring a Junos Space Virtual Appliance, refer to the following: Deploying a Junos Space Virtual Appliance Configuring the Basic Settings of a Junos Space Virtual Appliance 14

29 Chapter 4: Junos Space Appliance Configuring a Junos Space Virtual Appliance as a Standalone or Primary FMPM Node Related Documentation Deploying a Junos Space Virtual Appliance Configuring the Basic Settings of a Junos Space Virtual Appliance Configuring a Junos Space Virtual Appliance as a Standalone or Primary FMPM Node Configuring a Junos Space Appliance as a Backup or Secondary FMPM Node for High Availability How do I Determine the Disk I/O Speed of a Node in the Junos Space Fabric? You can determine the disk I/O speed of a node in the Junos Space fabric by logging in to the node as an admin user and executing the following command: dd if=/dev/zero of=./test bs=8k count= where test is the name of the file to which the command output is copied. The following is the command output: records in records out bytes (4.1 GB) copied, seconds, 257 MB/s where 257 MB/s indicates the I/O speed of the disk. We recommend that you delete the test file after determining the I/O speed. NOTE: The minimum I/O speed of a disk recommended for Junos Space Virtual Appliance is 200 Mbps. Related Documentation What Are the Hardware Specifications for the Junos Space JA1500 Appliance? on page 13 What Configuration Does Junos Space Require to Run the Virtual Appliance? on page 13 Can I Change the IP Address of a Junos Space Node That Has Been Deployed? Yes, you can do it from the Administration workspace in Network Application Platform. Related Documentation Configuring the Network Settings of a Node in the Junos Space Fabric After Installing a Junos Space Virtual Appliance, Why Do I Get a Login Incorrect Error When I Try to Log In to the Virtual Appliance from the Console? You might be experiencing a VMware slow connection, which can occur when you connect over a VPN or slow wireless. To address this problem you can try increasing the type delay for slow connections to virtual machine consoles by changing the 15

30 Junos Space Frequently Asked Questions keyboard.typematicmindelay setting, which you perform from the.vmx file for the virtual machine. You can edit the *.VMX files directly, but we recommend that you configure this value with the vsphere Client for a virtual machine template. For additional information on the keyboard.typematicmindelay setting, access the VMware Knowledge Base at and search on article

31 CHAPTER 5 Running Junos Space on NSM3000 Installing the Junos Space Software on Network and Security Manager NSM3000 on page 17 Installing the Junos Space Software on Network and Security Manager NSM3000 Starting with Junos Space Release 12.2, Junos Space can be run on an NSM3000, which is an appliance version of Network and Security Manager (NSM). To install Junos Space on an NSM3000, follow the steps in Booting and Configuring the Junos Space JA1500 Appliance from a USB Drive, at Installing a Junos Space Image on a Junos Space Appliance Using a USB Drive. Related Documentation Configuring a Junos Space Appliance as a Junos Space Node Network and Security Manager (formerly Netscreen-Security Manager) Documentation 17

32 Junos Space Frequently Asked Questions 18

33 CHAPTER 6 Fabric Management Can I Mix Hardware Appliances and Virtual Appliances When I Create a Fabric? on page 19 Can I Mix Hardware Appliances and Virtual Appliances When I Create a Fabric? Yes. This is supported. Related Documentation Fabric Management Overview 19

34 Junos Space Frequently Asked Questions 20

35 CHAPTER 7 Troubleshooting Where Are the Log Files Required for Troubleshooting? on page 21 Where Are the Log Files Required for Troubleshooting? You can download the troubleshooting log file from the Junos Space user interface in sever mode, by accessing the Junos Space Appliance URL in maintenance mode, or from the Junos Space Appliance console in CLI mode. The troubleshooting log file is downloaded as a zip package in server mode and maintenance mode, and as a tar package in CLI mode. The troubleshooting log file is a zip or tar package that contains the log files generated by different software components of Junos Space and service provisioning data files. Related Documentation Downloading the Troubleshooting Log File in the Server Mode Downloading Troubleshooting System Log Files Through the CLI Downloading the Troubleshooting Log File in the Maintenance Mode 21

36 Junos Space Frequently Asked Questions 22

37 CHAPTER 8 Topology How Does Junos Space Look For a Topology? on page 23 How Is Topology Discovery Different from Device Discovery? on page 23 What Are The Network Monitoring Topology Discovery Methods Supported for Different Device Families? on page 23 How Does Junos Space Look For a Topology? Junos Space uses SNMP to discover network elements (devices, links, ports) that are connected to the specified target devices and subnets. The Junos Space server uses SNMP probes to contact the targeted devices and get the relevant management information base (MIB) information needed to compute the topology. Related Documentation Working with Topology How Is Topology Discovery Different from Device Discovery? The topology discovery job discovers both devices and how they are connected (link association). The device discovery job discovers only devices. Related Documentation Device Discovery Overview Working with Topology What Are The Network Monitoring Topology Discovery Methods Supported for Different Device Families? Table 4 on page 24 lists the topology discovery methods for the Juniper Networks devices supported in Junos Space Network Management Platform. For more information, see Network Monitoring Topology Overview. 23

38 Junos Space Frequently Asked Questions NOTE: In Junos Space Network Management Platform Release 14.1, the display of bridge links between devices is not supported in the Network Monitoring Topology page. From Junos Space Network Management Platform Release 14.1R1 onward, IP-Route is not supported as a topology discovery method. Table 4: Topology Discovery Methods Supported Per Platform Device for Network Monitoring Product Series Topology Discovery Methods ACX Series IS-IS, LLDP, OSPF BX Series OSPF EX Series Bridge Discovery Protocol, IS-IS, LLDP, OSPF Firefly IS-IS, LLDP, OSPF J Series IS-IS, LLDP, OSPF LN Series OSPF M Series IS-IS, OSPF MX Series IS-IS, LLDP, OSPF PTX Series IS-IS, OSPF QFX Series Bridge Discovery Protocol, IS-IS, OSPF SRX Series IS-IS, LLDP, OSPF T Series IS-IS, OSPF 24

39 CHAPTER 9 Adapters What are WW Junos OS devices? What are WW Junos OS devices? on page 25 How Is Connecting to Devices Running on Worldwide Junos OS Different From Connecting to Those Running Domestic Junos OS? on page 25 WW Junos OS devices are devices running the world wide version of Junos OS. These devices use Telnet protocol instead of Secure Shell protocol (SSHv2) for communication. Related Documentation Worldwide Junos OS Adapter Overview Installing the Worldwide Junos OS Adapter How Is Connecting to Devices Running on Worldwide Junos OS Different From Connecting to Those Running Domestic Junos OS? Devices running the worldwide version of Junos OS use the Telnet protocol instead of the Secure Shell protocol (SSHv2) for communication. Because Junos Space does not support Telnet, it uses an adapter to act as a medium to connect to these devices. For more information, see Worldwide Junos OS Adapter Overview. Related Documentation Worldwide Junos OS Adapter Overview Installing the Worldwide Junos OS Adapter 25

40 Junos Space Frequently Asked Questions 26

41 CHAPTER 10 High Availability What Steps Do I Need to Take When One of the High Availability Nodes in the Cluster Shows the Status Down? on page 27 What Algorithm Does the Apache HTTP Load Balancer Use to Distribute Load Among Nodes in the Cluster? on page 28 How Do I Determine Which Node in the Cluster Is Handling My Network Management Platform User Interface Session? on page 28 How Do I Determine Which Device Connections Are Being Handled by a Node? on page 28 How Can I Simulate a Virtual IP (VIP) Failover? on page 28 What Steps Do I Need to Take When One of the High Availability Nodes in the Cluster Shows the Status Down? The first step is to collect all the logs from the cluster as you will want these logs for troubleshooting later on. Navigate to the Network Management Platform > Administration > Space Troubleshooting workspace to download troubleshooting data and logs from the cluster. Then try to log in to the console of the appliance that is down. If you are able to log in, access the debug shell and check to see whether the jmp-watchdog and jboss services are up. If the services are not up, do a restart on them and wait 15 to 20 minutes to see if the node status changes to Up. If not, perform a reboot. Once these services are up, navigate to the Network Management Platform > Administration > Fabric workspace to add the appliance back to the cluster. If the node does not come up, perform a reboot and wait 15 to 20 minutes for the node status to change to Up in the Network Management Platform > Administration > Fabric workspace. If you are unable to log in to the console, or a reboot does not solve the issue, navigate to the Network Management Platform > Administration > Fabric workspace and delete the node from the cluster. You can then promote another node (if available) as an HA node. You can then try to re image the appliance from a USB stick that has the same version of Junos Space that is currently running on the other nodes in the cluster. If you are unable to re-image the appliance, you must get a replacement appliance and re image it. 27

42 Junos Space Frequently Asked Questions NOTE: Whether you re-image the existing appliance or get a replacement appliance, you must reconfigure the appliance with exactly the same network settings that were configured previously. Once the appliance is configured, navigate to the Network Management Platform > Administration > Fabric workspace to add the appliance back to the cluster. What Algorithm Does the Apache HTTP Load Balancer Use to Distribute Load Among Nodes in the Cluster? Junos Space uses the mod_proxy load balancer module within the Apache HTTP server. The load balancer module is configured to use the default load-balancing method (Ibmethod=byrequests), which provides a weighted round-robin algorithm. However, because all nodes in the cluster have the same weight, a round-robin strategy is used for load distribution. The load balancer is also configured to use sticky sessions (using the JSESSIONID cookie), which ensures that all HTTP requests that are part of the same login session are forwarded to the same node in the cluster. How Do I Determine Which Node in the Cluster Is Handling My Network Management Platform User Interface Session? Open you browser s dialog, which lists all the stored cookies, then find the site with the VIP address of the Junos Space cluster and expand it. The content of the cookie named JSESSIONID contains the hostname of the node which is serving your current session. How Do I Determine Which Device Connections Are Being Handled by a Node? The easiest way is to SSH to the console of the node and use the netstat command, as shown in Figure 1 on page 28. The output will show one line for each device connected to this node. In this example, the node includes two device initiated connections and five space initiated connections. The IP addresses of the devices are displayed in the fifth column. Figure 1: Using the netstat Command to SSH to the Console of a Node How Can I Simulate a Virtual IP (VIP) Failover? To simulate a VIP failover, you can shut down the heartbeat service on the node that currently owns the VIP. 1. Log in to the console of the node and enter service heartbeat stop. 28

43 Chapter 10: High Availability The heartbeat service on this node will shut down, at which point a message is automatically sent to its peer node. The peer node will take over the VIP in response to this message. 2. You can monitor the /var/log/messages file on both nodes to view the log entries related to the failover. As the messages will show, VIP failover is almost instantaneous in this case. 29

44 Junos Space Frequently Asked Questions 30

45 PART 2 Index Index on page 33 31

46 Junos Space Frequently Asked Questions 32

47 syntax conventions...x Index T technical support contacting JTAC...xii Symbols #, comments in configuration statements...xi ( ), in syntax descriptions...xi < >, in syntax descriptions...xi [ ], in configuration statements...xi { }, in configuration statements...xi (pipe), in syntax descriptions...xi B braces, in configuration statements...xi brackets angle, in syntax descriptions...xi square, in configuration statements...xi C comments, in configuration statements...xi conventions text and syntax...x curly braces, in configuration statements...xi customer support...xii contacting JTAC...xii D documentation comments on...xi F font conventions...x I IPv6 support...12 M manuals comments on...xi P parentheses, in syntax descriptions...xi S support, technical See technical support 33

48 Junos Space Frequently Asked Questions 34