Cisco Systems OL-17037-01 manual Using the GUI to Perform a Link Test

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Chapter 7 Controlling Lightweight Access Points

Performing a Link Test

response packet. Both the link-test requestor and responder roles are implemented on the access point and controller. Therefore, not only can the access point or controller initiate a link test to a CCX v4 or v5 client, but a CCX v4 or v5 client can initiate a link test to the access point or controller.

The controller shows these link-quality metrics for CCX link tests in both directions (out: access point

to client; in: client to access point):

•Signal strength in the form of RSSI (minimum, maximum, and average)

•Signal quality in the form of SNR (minimum, maximum, and average)

•Total number of packets that are retried

•Maximum retry count for a single packet

•Number of lost packets

•Data rate of a successfully transmitted packet

The controller shows this metric regardless of direction:

•Link test request/reply round-trip time (minimum, maximum, and average)

The controller software supports CCX versions 1 through 5. CCX support is enabled automatically for every WLAN on the controller and cannot be disabled. The controller stores the CCX version of the client in its client database and uses it to limit the features for this client. If a client does not support CCXv4 or v5, the controller performs a ping link test on the client. If a client supports CCXv4 or v5, the controller performs a CCX link test on the client. If a client times out during a CCX link test, the controller switches to the ping link test automatically. See the “Configuring Cisco Client Extensions” section on page 6-38for more information on CCX.

Note CCX is not supported on the AP1030.

Follow the instructions in this section to perform a link test using either the GUI or the CLI.

Using the GUI to Perform a Link Test

Follow these steps to run a link test using the GUI.

Step 1 Click Monitor > Clients to open the Clients page (see Figure 7-23).

		Cisco Wireless LAN Controller Configuration Guide
		Cisco Wireless LAN Controller Configuration Guide
	OL-17037-01			7-65
	OL-17037-01			7-65

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Contents Controlling Lightweight Access Points Controller Discovery Process Access Point Communication ProtocolsGuidelines for Using Capwap Page Config network master-base disable Verifying that Access Points Join the ControllerConfig network master-base enable Debugging Capwap Configuring Global Credentials for Access PointsViewing Capwap MTU Information Global Configuration All APs Details for Credentials Show ap summary Save configShow ap config general CiscoAP Lwapp ap dot1x username username password password Configuring Authentication for Access PointsController Using the GUI to Configure Authentication for Access PointsCisco Wireless LAN Controller Configuration Guide Config ap dot1xuser add username user password password all Using the CLI to Configure Authentication for Access PointsAP Dot1x User Mode field shows Customized Config ap dot1xuser disable all CiscoAPConfiguring the Switch for Authentication Embedded Access PointsIp dhcp pool poolname Dns-server ipaddress Default-router ipaddressAutonomous Access Points Converted to Lightweight Mode Using a Controller to Return to a Previous Release Reverting from Lightweight Mode to Autonomous ModeAuthorizing Access Points Using MICs Authorizing Access PointsAuthorizing Access Points Using SSCs Using the GUI to Configure LSC Authorizing Access Points Using LSCsConfig certificate lsc ca-server http//urlport/path Config certificate lsc enable disableConfig certificate lsc ca-cert add delete Config certificate lsc other-params keysizeShow certificate lsc summary Config certificate lsc ap-provision auth-list add APmacaddrConfig certificate lsc ap-provision revert-cert retries Show certificate lsc ap-provision Using the GUI to Authorize Access PointsConfig auth-list ap-policy mic ssc lsc enable disable Using the CLI to Authorize Access PointsConfig auth-list add mic ssc lsc apmac apkey Show auth-listTroubleshooting the Access Point Join Process Using Dhcp Option 43 and Dhcp OptionControlling Lightweight Access Points Viewing Access Point Join Information Configuring the Syslog Server for Access PointsShow ap config global Show ap join stats summary allJoined Debug ap enable disable command cmd CiscoAP Converted Access Points Send Radio Core Dumps to ControllerShow ap crash-file Using the CLI to Retrieve Radio Core DumpsUsing the GUI to Upload Radio Core Dumps Transfer upload start Using the CLI to Upload Radio Core DumpsUsing the GUI to Upload Access Point Core Dumps Uploading Memory Core Dumps from Converted Access PointsUsing the CLI to Upload Access Point Core Dumps Display of MAC Addresses for Converted Access PointsConfig ap reset-button enable disable ap-nameall Supporting Oversized Access Point ImagesWGB Example Cisco Workgroup BridgesGuidelines for Using WGBs Configure terminal Show dot11 association Sample WGB ConfigurationUsing the GUI to View the Status of Workgroup Bridges 11 Clients Detail 12 WGB Wired Clients Using the CLI to Debug WGB Issues Using the CLI to View the Status of Workgroup BridgesDebug dhcp message enable Debug dhcp packet enable Debug dot11 mobile enable Debug dot11 state enableConfiguring Backup Controllers 14 Global Configuration Using the GUI to Configure Backup Controllers15 All APs Details for High Availability Using the CLI to Configure Backup Controllers Config advanced timers auth-timeout interval Config advanced timers ap-discovery-timeout interval1300 Configuring Failover Priority for Access Points16 Global Configuration Enabled Using the CLI to View Failover Priority SettingsGuidelines for Configuring Multiple Country Codes Configuring Country CodesUsing the GUI to Configure Country Codes 19 All APs Details for Advanced Show country Using the CLI to Configure Country CodesShow country supported Show country channels Config 802.11a enable network config 802.11b enable network Controlling Lightweight Access Points Config country J3 Migrating Access Points to the -U Regulatory DomainGuidelines for Migration Show ap migrateConfig ap migrate j52w52 all apname Dynamic Frequency Selection Using the W56 Band in JapanUsing the GUI to Optimize Rfid Tracking on Access Points Optimizing Rfid Tracking on Access Points20 802.11b/g/n Cisco APs Configure Config 802.11b enable CiscoAP Using the CLI to Optimize Rfid Tracking on Access PointsConfig ap monitor-mode tracking-opt CiscoAP Config advanced probe filter enable disable Configuring Probe Request ForwardingConfig advanced probe limit numprobes interval Show ap monitor-mode summaryInventory 22 All APs Details for Inventory Performing a Link TestUsing the GUI to Perform a Link Test Link Test Using the CLI to Perform a Link Test Configuring Link Latency25 All APs Details for Advanced Using the GUI to Configure Link LatencyConfig ap link-latency enable disable CiscoAP all Using the CLI to Configure Link LatencyConfig ap link-latency reset CiscoAP Configuring Power over EthernetEPoE Power EPoE Mode 15.4 W Optimized 20 W Using the GUI to Configure Power over EthernetCisco Wireless LAN Controller Configuration Guide Config ap power injector enable CiscoAP all override Using the CLI to Configure Power over EthernetConfig ap power injector enable CiscoAP all installed Using the GUI to View Clients Configuring Flashing LEDsDebug ap command led flash seconds CiscoAP Viewing ClientsControlling Lightweight Access Points Viewing Clients 28 Search Clients 29 Clients Detail AP MAC Using the CLI to View ClientsS69 OL-17037-01