Cisco WCS Overview. The Cisco Unified Wireless Network Solution CHAPTER

Transcription

1 1 CHAPTER This chapter describes the Cisco Unified Wireless Network Solution (CUWNS) and the Cisco WCS. This chapter contains the following sections: The Cisco Unified Wireless Network Solution, page 1-1 The WCS, page 1-2 WCS Versions, page 1-3 Embedded Access Points, page 1-7 Access Point Communication Protocols, page 1-9 WCS Navigator, page 1-10 WCS User Interface, page 1-11 The Cisco Unified Wireless Network Solution The Cisco Unified Wireless Network solution provides wireless networking solutions for enterprises and service providers. It simplifies the deployment and management of large-scale wireless LANs and enables a you to create a unique best-in-class security infrastructure. The operating system manages all data client, communications, and system administration functions, performs radio resource management (RRM) functions, manages system-wide mobility policies using the operating system security solution, and coordinates all security functions using the operating system security framework. The Cisco Unified Wireless Network Solution consists of Cisco Unified Wireless Network Controllers (hereafter called controllers) and their associated lightweight access points controlled by the operating system, all concurrently managed by any or all of the operating system user interfaces: An HTTPS full-featured web user interface hosted by Cisco controllers can be used to configure and monitor individual controllers. A full-featured command-line interface (CLI) can be used to configure and monitor individual controllers. WCS can be used to configure and monitor one or more controllers and associated access points. WCS has tools to facilitate large-system monitoring and control. It runs on Windows 2003 and Red Hat Enterprise Linux ES/AS 5.X servers. An industry-standard SNMP V1, V2c, and V3 interface can be used with any SNMP-compliant third-party network management system. 1-1

2 The WCS The Cisco Unified Wireless Network Solution supports client data services, client monitoring and control, and all rogue access point detection, monitoring, and containment functions. It uses lightweight access points, controllers, and the optional WCS to provide wireless services to enterprises and service providers. Unless specified otherwise, information pertaining to controllers applies to all Cisco Unified Wireless Network Controllers, including but not limited to Cisco 2000 and 2100 Series Unified Wireless Network Controllers, Cisco 4100 Series Unified Wireless Network Controllers, Cisco 4400 Series Unified Wireless Network Controllers, Cisco 5500 Series Wireless LAN Controllers, and controllers within the Cisco Wireless Services Module (WiSM) and Cisco 26/28/37/38xx Series Integrated Services Routers. Figure 1-1 shows the Cisco Unified Wireless Network Solution components, which can be simultaneously deployed across multiple floors and buildings. Figure 1-1 Cisco Unified Wireless Network Solution The WCS The Cisco Wireless Control System (WCS) is a Cisco Wireless LAN Solution network management tool that adds to the capabilities of the Web User Interface and the command-line interface (CLI). WCS enables you to manage a network of controllers. In Windows and Linux, Cisco WCS is installed as a service. The service runs continuously and resumes after a reboot. 1-2

3 WCS Versions To receive the expected results with WCS, you should run no more than 3 concurrent WCS setups for standard server use (4 GB memory and 3 GHz CPU speed) and no more than 5 concurrent WCS setups for high-end server use (8 GB memory and 3 GHz CPU speed). WCS enables you to configure and monitor one or more controllers and associated access points. WCS includes the same configuration, performance monitoring, security, fault management, and accounting options used at the controller level and adds a graphical view of multiple controllers and managed access points. WCS runs on Windows 2003/SP2, Windows 2003 R2/SP2 32-bit installations, and Red Hat Linux Enterprise Server 5.X 32-bit installations. On both Windows and Linux, WCS runs as a service, which runs continuously and resumes running after a reboot. You must use Internet Explorer 7.0 or later to control all permitted Cisco Unified Wireless Network Solution configuration, monitoring, and control functions through Internet Explorer 7.0 with the Flash plugin, or Mozilla Firefox 3.5 or later. The administrator defines permissions from the Administration menu, which also enables the administrator to manage user accounts and schedule periodic maintenance tasks. We strongly advice that you do not enable third-party browser extensions. In Internet Explorer, you can disable third-party browser extensions by choosing Tools > Internet Options and unselecting the Enable third-party browser extensions check box on the Advanced tab. WCS simplifies controller configuration and monitoring and reduces data entry errors. WCS uses the industry-standard SNMP protocol to communicate with the controllers. WCS also includes the Floor Plan editor which allows you to do the following: Vectorize bitmapped campus, floor plan, and outdoor area maps. Add and change wall types. Import the vector wall format maps into the database. The vector files allow the Cisco WCS RF Prediction Tool to make better RF predictions based on more accurate wall and window RF attenuation values. This section contains the following topics: WCS Versions, page 1-3 Embedded Access Points, page 1-7 Access Point Communication Protocols, page 1-9 WCS Navigator, page 1-10 WCS User Interface, page 1-11 WCS Versions You can install WCS with one of two capabilities: WCS Base or WCS Location. A license is required for both. This section contains the following topics: WCS Base, page

4 WCS Versions WCS Base + Location, page 1-4 Enabling Mobility Services and HA with WCSPLUS License, page 1-5 Comparison of WCS Base and WCS Location Features, page 1-7 WCS Base The WCS Base supports wireless client data access, rogue access point detection, and rogue ad hoc detection and containment functions (such as on-demand location of rogue access points that are mapped next to the detecting access point), and Cisco UWN Solution monitoring and control. It also includes graphical views of the following: Autodiscovery of access points as they associate with controllers Autodiscovery and containment or notification of rogue access points Map-based organization of access point coverage areas, which is helpful when the enterprise spans more than one geographical area Ad hoc rogue detection User-supplied campus, building, and floor plan graphics, which show the following: Locations and status of managed access points Locations of rogue access points based on the signal strength received by the nearest managed Cisco access points Coverage hole alarm information for access points based on the received signal strength from clients. This information appears in a table rather than map format. RF coverage maps The WCS Base also provides system-wide control of the following: Streamlined network, controller, and managed access point configuration using customer-defined templates Network, controller, and managed access point status and alarm monitoring Automated and manual data client monitoring and control functions Automated monitoring of rogue access points, rogue ad hoc events, coverage holes, security violations, controllers, and access points Full event logs for data clients, rogue access points, coverage holes, security violations, controllers, and access points Automatic channel and power level assignment by radio resource management (RRM) User-defined automatic controller status audits, missed trap polling, configuration backups, and policy cleanups Real-time location of rogue access points and rogue ad hoc events to the nearest Cisco access point Real-time and historical location of clients to the nearest Cisco access point WCS Base + Location WCS Location includes all the features of WCS Base as well as these enhancements: 1-4

5 WCS Versions On-demand location of rogue access points and rogue ad hoc events to within 33 feet (10 meters) On-demand location of clients to within 33 feet (10 meters) Ability to use location appliances to collect and return historical location data viewable in the WCS Location user interface Enabling Mobility Services and HA with WCSPLUS License A Cisco WCS PLUS license supports Cisco WCS base license features and the following capabilities: Location services High availability A Cisco WCS PLUS license is backward compatible to existing Cisco WCS location and enterprise licenses. The process to provision a Cisco WCS PLUS license is the same as provisioning a current Cisco WCS license. A PLUS license is required to enable mobility services engines which are launched with the Motion campaign. Using WCS Cisco Location Appliances When WCS Location is used, you can deploy Cisco 2700 Series Location Appliances. The location appliance enhances WCS Location capabilities by computing, collecting, and storing historical location data, which can be displayed in WCS. In this role, the location appliance acts as a server to a WCS server by collecting, storing, and passing on data from its associated controllers. When WCS is enhanced with a location appliance, it can display historical location data for up to 2,500 laptop clients, palmtop clients, VoIP telephone clients, radio frequency identifier (Wi-Fi tags) asset tags, rogue access points, rogue ad hoc events, and rogue clients for each location appliance in the Cisco Unified Wireless Network Solution. You can configure location appliances to collect this data and statistics at defined intervals. You can configure Context Aware Software (CAS) to a mobility services engine, and then add the mobility services engine to Cisco WCS. CAS allows the mobility services engine to simultaneously track thousands of mobile assets and clients by retrieving contextual information such as location, temperature, and availability from Cisco access points. For more information about mobility services engines and CAS, see the Mobility Services chapter. You can also use WCS to configure location appliance event notification parameters. Event notification is a feature that enables you to define conditions that cause the location appliance to send notifications to the listeners that you specify in WCS. In this way, WCS acts as a notification listener. It receives notifications from the location appliance in the form of the locationnotifytrap trap as part of the bsnwras.my MIB file. WCS translates the traps into user interface alerts and displays the alerts in the following format: Absence: - Absence of Tag with MAC 00:0c:cc:5b:e4:1b, last seen at 16:19:45 13 Apr Containment: - Tag with MAC 00:0c:cc:5b:fa:44 is In the Area 'WNBU > WNBU > 4th Floor > wcsdevarea' Distance: - Tag with MAC 00:0c:cc:5b:fa:47 has moved beyond the distance configured for the marker 'marker2'. - Tag with MAC 00:0c:cc:5b:f9:b9 has moved beyond 46.0 ft. of marker 'marker2', located at a range of ft. 1-5

6 WCS Versions See the Cisco Location Application Configuration Guide for more detailed information about the location appliance and its use with WCS. The location appliance can be backed up to any WCS server into an operator-defined FTP folder, and the location appliance can be restored from that server at any time and at defined intervals. Also, the location appliance database can be synchronized with the WCS server database at any time. Operators can use the location appliance features and download new application code to all associated appliances from any WCS server. 1-6

7 Embedded Access Points Comparison of WCS Base and WCS Location Features Table 1-1 WCS Base and WCS Location Features Features WCS Base WCS Location Location and tracking Low-resolution client location Yes High-resolution client location Yes Integration with location appliance Yes Low-resolution rogue access point location Yes High-resolution rogue access point location Yes Client data services, security, and monitoring Client access via access points Yes Yes Multiple wireless LANs (individual SSIDs and policies) Yes Yes Rogue access point detection and containment using access points Yes Yes a/b/g/n bands Yes Yes Radio resource management Real-time channel assignment and rogue access point detection and Yes Yes containment Real-time interference detection and avoidance, transmit power control, channel assignment, client mobility management, client load distribution, and coverage hole detection Yes Yes Automated software and configuration updates Yes Yes Wireless intrusion protection Yes Yes Global and individual Access Point security policies Yes Yes Controls Cisco Unified Wireless Network Controllers Yes Yes Supported workstations Windows 2003 Yes Yes Red Hat Enterprise Linux ES 5.1 Yes Yes Mozilla Firefox or later Yes Yes Embedded Access Points WCS software Release 5.2 or later supports the AP801, which is the integrated access point on the Cisco 800 Series Integrated Services Routers (ISRs). WCS software Release or later supports the AP802, which is the integrated access point on the Next Generation Cisco 880 Series Integrated Services Routers (ISRs). These access points use a Cisco IOS software image that is separate from the router Cisco IOS software image. It can operate as an autonomous access point that is configured and managed 1-7

8 Embedded Access Points locally, or it can operate as a centrally managed access point using CAPWAP or LWAPP protocol. The AP801 and AP802 are preloaded with both an autonomous Cisco IOS release and a recovery image for the unified mode. When you want to use the AP801 or AP802 with a controller, you must enable the recovery image for the unified mode on the access point by entering this CLI command on the router in privileged EXEC mode: service-module wlan-ap 0 bootimage unified. If the service-module wlan-ap 0 bootimage unified command does not work, make sure that the software license is still current. After enabling the recovery image, enter this CLI command on the router to shut down and reboot the access point: service-module wlan-ap 0 reload. After the access point reboots, it discovers the controller, downloads the full CAPWAP or LWAPP software release from the controller, and acts as a lightweight access point. To use the CLI commands mentioned previously, the router must be running Cisco IOS Release 12.4(20)T or later. If you experience any problems, refer to the Troubleshooting an Upgrade or Reverting the AP to Autonomous Mode section in the Integrated Services Router configuration guide at this URL: n_ap.html To support CAPWAP or LWAPP, the router must be activated with at least the Cisco Advanced IP Services IOS license-grade image. A license is required to upgrade to this Cisco IOS image on the router. See this URL for licensing information: After the AP801 or the AP802 boots up with the recovery image for the unified mode, it requires an IP address to communicate with the controller and to download its unified image and configuration from the controller. The router can provide DHCP server functionality, the DHCP pool to reach the controller, and setup option 43 for the controller IP address in the DHCP pool configuration. Use the following configuration to perform this task. ip dhcp pool pool_name network ip_address subnet_mask dns-server ip_address default-router ip_address option 43 hex controller_ip_address_in_hex Example: ip dhcp pool embedded-ap-pool network dns-server default-router option 43 hex f104.0a0a.0a0f /* single WLC IP address ( ) in hex format */ The AP801 and the AP n radios support lower power levels than the n radio in the Cisco Aironet 1250 series access points. The AP801 and the AP802 store the radio power levels and passes them to the controller when the access point joins the controller. The controller uses the supplied values to limit the user configuration. The AP801 and the AP802 can be used in hybrid-reap mode. See the Configuring Hybrid REAP section on page 13-1 for more information on hybrid REAP. 1-8

9 Access Point Communication Protocols For more information on the AP801, see the documentation for the Cisco 800 Series ISRs at this URL: For more information on the AP802, see the documentation for the Next generation Cisco 880 Series ISRs at this URL: _880_series.pdf Access Point Communication Protocols In controller software release 5.2 or later, Cisco lightweight access points use the IETF standard Control and Provisioning of Wireless Access Points Protocol (CAPWAP) to communicate between the controller and other lightweight access points on the network. Controller software releases prior to 5.2 use the Lightweight Access Point Protocol (LWAPP) for these communications. CAPWAP, which is based on LWAPP, is a standard, interoperable protocol that enables a controller to manage a collection of wireless access points. CAPWAP is being implemented in controller software release 5.2 for these reasons: To provide an upgrade path from Cisco products that use LWAPP to next-generation Cisco products that use CAPWAP To manage RFID readers and similar devices To enable controllers to interoperate with third-party access points in the future LWAPP-enabled access points are compatible with CAPWAP, and conversion to a CAPWAP controller is seamless. For example, the controller discovery process and the firmware downloading process when using CAPWAP are the same as when using LWAPP. The one exception is for Layer 2 deployments, which are not supported by CAPWAP. Deployments can combine CAPWAP and LWAPP software on the controllers. The CAPWAP-enabled software allows access points to join either a controller running CAPWAP or LWAPP. The only exception is the Cisco Aironet 1140 Series Access Point, which supports only CAPWAP and therefore joins only controllers running CAPWAP. This section contains the following topics: Guidelines and Restrictions for Using CAPWAP, page 1-9 The Controller Discovery Process, page 1-10 The Cisco Aironet 1140 series and 3500 series access points associate only with CAPWAP controllers that run WLC Versions 7.0 or later. Guidelines and Restrictions for Using CAPWAP CAPWAP and LWAPP controllers cannot be used in the same mobility group. Therefore, client mobility between CAPWAP and LWAPP controllers is not supported. 1-9

10 WCS Navigator If your firewall is currently configured to allow traffic only from access points using LWAPP, you must change the rules of the firewall to allow traffic from access points using CAPWAP. Make sure that the CAPWAP ports are enabled and are not blocked by an intermediate device that could prevent an access point from joining the controller. Any access control lists (ACLs) in your network might need to be modified if CAPWAP uses different ports than LWAPP. The Controller Discovery Process In a CAPWAP environment, a lightweight access point discovers a controller by using CAPWAP discovery mechanisms and then sends it a CAPWAP join request. The controller sends the access point a CAPWAP join response allowing the access point to join the controller. When the access point joins the controller, the controller manages its configuration, firmware, control transactions, and data transactions. Lightweight access points must be discovered by a controller before they can become an active part of the network. The lightweight access points support these controller discovery processes: Layer 3 CAPWAP or LWAPP discovery Can occur on different subnets from the access point and uses IP addresses and UDP packets rather the MAC addresses used by Layer 2 discovery. Over-the-air provisioning (OTAP) This feature is supported by Cisco 4400 series controllers. If this feature is enabled on the controller (in the controller General page), all associated access points transmit wireless CAPWAP or LWAPP neighbor messages, and new access points receive the controller IP address from these messages. This feature is disabled by default and should remain disabled when all access points are installed. Locally stored controller IP address discovery If the access point was previously associated to a controller, the IP addresses of the primary, secondary, and tertiary controllers are stored in the non-volatile memory of an access point. This process of storing controller IP addresses on access points for later deployment is called priming the access point. DHCP server discovery This feature uses DHCP option 43 to provide controller IP addresses to the access points. Cisco switches support a DHCP server option that is typically used for this capability. DNS discovery The access point can discover controllers through your domain name server (DNS). For the access point to do so, you must configure your DNS to return controller IP addresses in response to CISCO-CAPWAP-CONTROLLER.localdomain or CISCO-LWAPP-CONTROLLER.localdomain, where localdomain is the access point domain name. When an access point receives an IP address and DNS information from a DHCP server, it contacts the DNS to resolve CISCO-CAPWAP-CONTROLLER.localdomain or CISCO-LWAPP-CONTROLLER.localdomain. When the DNS sends a list of controller IP addresses, the access point sends discovery requests to the controllers. WCS Navigator The Cisco Wireless Control System Navigator (Cisco WCS Navigator) manages multiple Cisco WCSs (running the same version as Navigator) and provides a unified view of the network. It uses SOAP/XML over HTTPs to communicate with individual WCSs. With WCS Navigator, there is monitoring functionality and reporting capability across all WCSs. In addition, network wide searches are available. In Windows and Linux, Cisco WCS Navigator runs as a service, which runs continuously and resumes running after a reboot. 1-10

11 WCS User Interface In order for the WCS Navigator to detect the regional WCSs, you must manually add them to the system using either the IP address or hostname and specify the login credentials for each of the regional WCSs. After being added, WCS Navigator provides summary information and links to the regional WCS systems. Cisco WCS Location In addition to the basic features, Cisco WCS Location adds the following enhancements: On-demand location of rogue access points and adhoc rogues to within 10 meters. On-demand location of clients to within 10 meters. Ability to use location appliances to collect and return historical location data viewable in the Cisco WCS Location user interface. WCS User Interface The WCS user interface enables the network operator to create and configure Cisco Unified Wireless Network Solution coverage area layouts, configure system operating parameters, monitor real-time Cisco Unified Wireless Network Solution operation, and perform troubleshooting tasks using an HTTPS web browser page. The WCS user interface also enables the WCS administrator to create, modify, and delete user accounts; change passwords; assign permissions; and schedule periodic maintenance tasks. The administrator creates new usernames and passwords and assigns them to predefined permissions groups. Menu Bar Monitor Menu The following menus are available consistently across WCS: Monitor, Reports, Configure, Services, Administration, Tools, and Help. Hover your mouse cursor over any menu to access its drop-down options. The Monitor menu provides you with a top-level description of your network devices. The following submenu options are available from the Monitor menu: Monitoring Maps Monitoring Google Earth Maps Monitoring Controllers Monitoring Access Points Monitoring Clients Monitoring Tags Monitoring Chokepoints Monitoring Interferers Monitoring WiFi TDOA Receivers Monitoring Spectrum Experts 1-11

12 WCS User Interface Monitoring Media Streams Monitoring Radio Resource Management (RRM) Monitoring Alarms Monitoring Events Reports Menu The Reports menu provides the following submenu options: Report Launch Pad Managing Scheduled Run Results Managing Saved Reports Configure Menu The Configure menu enables you to configure your network templates, controllers, and access points. The following submenu options are available from the Configure drop-down menu: Configuring Controllers Configuring Access Points Configuring Ethernet Switches Configuring Chokepoints Configuring Spectrum Experts Configuring WiFi TDOA Receivers Accessing Controller Template Launch Pad Configuring Controller Config Groups Configuring Auto Provisioning Configuring AP Configuration Templates Configuring Autonomous AP Migration Templates Configuring Scheduled Configuration Tasks Configuring wips Profiles Configuring ACS View Servers Configuring TFTP Servers Services Menu The Services menu enables you to manage mobility services including mobility services engines and location servers. The following submenu options are available from the Services drop-down menu: Mobility Services Synchronizing Services Viewing Synchronization History Viewing Notification Statistics 1-12

13 WCS User Interface Read/Write permissions are used by the location function of the location server. Write permissions allow a client application or location server operator to modify location data only (such as asset information), while Read permissions only allow a client to read location data. Full permissions are required for administration. All functions under the Locate menu in WCS are administrative functions, which means the administrator must always have full permissions. Administration Menu The Administration menu allows you to schedule tasks such as scheduling a backup, checking a device status, auditing your network, and synchronizing mobility services. The following submenu options are available from the Administration drop-down menu: Background Tasks Authentication, Authorization, and Accounting (AAA) Configuring Virtual Domains Data Management Tasks (Settings) High Availability User Preferences License Center Tools The Tools menu provides access to the Voice Audit, Configuration Audit, and Migration Analysis features of WCS. The following submenu options are available from the Tools drop-down menu: Voice Audit Location Accuracy Tool Running Voice Diagnostic Configuring Audit Summary Configuring Migration Analysis Configuring Migration Analysis Help The Help menu allows you to access online help, learning modules, submit feedback, and to verify the current version of WCS. The following submenu options are available from the Help drop-down menu: Online Help Learning Modules Submit Feedback Product Improvement Program 1-13

14 WCS User Interface About Cisco WCS To verify the version of WCS, choose About Cisco WCS. The following information is displayed: Product Name Version Number Host Name Feature AP Limit License Type Copyright statement Floor Plan Editor The Floor Plan editor: Converts architectural, mechanical, and technical drawings, graphics, and maps from raster bitmaps to wall (vector) formats. The vector files allow the WCS RF Prediction Tool to make improved RF predictions based on access point signal strength and accurate wall, window, and cubicle RF attenuation. Allows operators to scan and digitize paper drawings into supported file formats. The quality of floor plan editor recognition is higher for higher resolution data. Use 400 to 600 dots per inch (dpi) scans whenever possible. Automatically recognizes and represents data in a wall format which can then be imported into the Cisco WCS program. The output wall files can be saved as.dxf (AutoCAD),.AI (Adobe Illustrator),.EMF (enhanced metafile),.wmf (Windows metafile), and.txt (ASCII XY) but Cisco WCS does not recognize these file types. Allows the editing of existing vector map files. There are no restrictions on the input or output image size. Images with the long axis horizontal (landscape format) are recommended to ensure quality viewing in the Cisco WCS. Cisco Wireless LAN Controller Autodiscovery Controller Autodiscovery is limited to the Cisco WLAN Solution mobility group subnets defined by the operator. Autodiscovery: Allows operators to search for a single controller by IP address. 1-14

15 WCS User Interface Finds the controller on the network within the specified IP address range. Automatically enters the controller information into the Cisco WCS database. Controller Autodiscovery can take a long time in a Class C address range. Because of the large number of addresses in a Class B or Class A range, we recommend that you do not attempt Autodiscovery across Class B or Class A ranges. As access points associate with a controller, the controller immediately transmits the access point information to Cisco WCS, which automatically adds the access point to the database. Once the access point information is added to the Cisco WCS database, operators can add the access point to the appropriate spot on a Cisco WCS user interface map. Cisco WCS Location Calibration The Cisco WCS calibration tool: Allows operators to accurately measure actual signal strength and attenuation in RF coverage areas which creates an accurate calibration model in the Cisco WCS database. Allows more precise client and rogue access point location after calibration is completed. Can be reused for areas with an identical access point layout and identical wall layout. The calibration tool allows a technician to use a WCS-equipped laptop to measure actual signal strength and process the collected data points for multiple floor and outdoor locations. See the Managing RF Calibration Models section on page 5-63 to view the current calibration models. Cisco 2700 Series Location Appliances The location appliance acts as a server to one or more Cisco WCS Servers by collecting, storing, and relaying data from associated controllers. This data can be displayed in a Cisco WCS. After a quick command-line interface (CLI) configuration, the remaining location appliance configuration can be completed using the Cisco WCS interface. After configuration, each location appliance communicates directly with its associated controllers to collect operator-defined location data. The associated Cisco WCS Server operators can then communicate with each location appliance to transfer and display selected data. The location appliance can be backed up to any Cisco WCS Server into an operator-defined FTP folder and the location appliance can be restored from that Cisco WCS Server at any time and at defined intervals. Also, the location appliance database can be synchronized with the Cisco WCS Server database at any time. Operators can use the location appliance features and download new application code to all associated location appliances from any Cisco WCS Server. When Cisco WCS is enhanced with a location appliance, Cisco WCS can display historical location data for up to 1,500 Laptop Clients, Palmtop Clients, VoIP Telephone Clients, RFID (Radio Frequency IDentifier) Asset Tags, Rogue Access Points, Adhoc Rogues, and Rogue Access Point Clients for each location appliance in the Cisco WLAN Solution. Operators can configure location appliances to collect data for Cisco WLAN Solution clients, rogue access points and clients, RFID Asset Tags, and statistics at separate operator-defined intervals. 1-15

16 WCS User Interface The location appliance uses two redundant back-panel 10/100/1000BASE-T ports to connect to one or two network segments. It also features a back-panel power cord and front-panel ON/OFF switch. The location appliance includes a back-panel DB-9 console port for initial configuration using a CLI console. Each location appliance can be installed in any NOC (Network Operations Center) or wiring closet from which it can communicate with its associated Cisco WCS Server(s) and controllers. 1-16