Cisco Systems OL-17037-01 Using the GUI to Configure Backup Controllers, Global Configuration

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Chapter 7 Controlling Lightweight Access Points

Configuring Backup Controllers

Using the GUI to Configure Backup Controllers

Using the controller GUI, follow these steps to configure primary, secondary, and tertiary controllers for a specific access point and to configure primary and secondary backup controllers for all access points.

Step 1 Click Wireless > Access Points > Global Configuration to open the Global Configuration page (see Figure 7-14).

Figure 7-14 Global Configuration Page

Step 2 From the Local Mode AP Fast Heartbeat Timer State drop-down box, choose Enable to enable the fast heartbeat timer for access points in local mode or Disable to disable this timer. The default value is Disable.

Step 3 If you chose Enable in Step 2, enter a number between 1 and 10 seconds (inclusive) in the Local Mode AP Fast Heartbeat Timeout field to configure the fast heartbeat timer for access points in local mode. Specifying a small heartbeat interval reduces the amount of time it takes to detect a controller failure. The default value is 0 seconds, which disables the timer.

Step 4 From the H-REAP Mode AP Fast Heartbeat Timer State drop-down box, choose Enable to enable the fast heartbeat timer for hybrid-REAP access points or Disable to disable this timer. The default value is Disable.

Step 5 If you chose Enable in Step 4, enter a value between 1 and 10 seconds (inclusive) in the H-REAP Mode AP Fast Heartbeat Timeout field to configure the fast heartbeat timer for hybrid-REAP access points. Specifying a small heartbeat interval reduces the amount of time it takes to detect a controller failure. The default value is 0 seconds, which disables the timer.

Step 6 In the AP Primary Discovery Timeout field, a value between 30 and 3600 seconds (inclusive) to configure the access point primary discovery request timer. The default value is 120 seconds.

	Cisco Wireless LAN Controller Configuration Guide
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Contents Controlling Lightweight Access Points Access Point Communication Protocols Guidelines for Using CapwapController Discovery Process Page Verifying that Access Points Join the Controller Config network master-base enableConfig network master-base disable Configuring Global Credentials for Access Points Viewing Capwap MTU InformationDebugging Capwap Global Configuration All APs Details for Credentials Save config Show ap config general CiscoAPShow ap summary Configuring Authentication for Access Points Lwapp ap dot1x username username password passwordUsing the GUI to Configure Authentication for Access Points ControllerCisco Wireless LAN Controller Configuration Guide Using the CLI to Configure Authentication for Access Points Config ap dot1xuser add username user password password allConfig ap dot1xuser disable all CiscoAP AP Dot1x User Mode field shows CustomizedEmbedded Access Points Configuring the Switch for AuthenticationDns-server ipaddress Default-router ipaddress Ip dhcp pool poolnameAutonomous Access Points Converted to Lightweight Mode Reverting from Lightweight Mode to Autonomous Mode Using a Controller to Return to a Previous ReleaseAuthorizing Access Points Authorizing Access Points Using SSCsAuthorizing Access Points Using MICs Authorizing Access Points Using LSCs Using the GUI to Configure LSCConfig certificate lsc ca-cert add delete Config certificate lsc enable disableConfig certificate lsc ca-server http//urlport/path Config certificate lsc other-params keysizeConfig certificate lsc ap-provision auth-list add APmacaddr Config certificate lsc ap-provision revert-cert retriesShow certificate lsc summary Using the GUI to Authorize Access Points Show certificate lsc ap-provisionConfig auth-list add mic ssc lsc apmac apkey Using the CLI to Authorize Access PointsConfig auth-list ap-policy mic ssc lsc enable disable Show auth-listUsing Dhcp Option 43 and Dhcp Option Troubleshooting the Access Point Join ProcessControlling Lightweight Access Points Show ap config global Configuring the Syslog Server for Access PointsViewing Access Point Join Information Show ap join stats summary allJoined Converted Access Points Send Radio Core Dumps to Controller Debug ap enable disable command cmd CiscoAPUsing the CLI to Retrieve Radio Core Dumps Using the GUI to Upload Radio Core DumpsShow ap crash-file Using the CLI to Upload Radio Core Dumps Transfer upload startUploading Memory Core Dumps from Converted Access Points Using the GUI to Upload Access Point Core DumpsDisplay of MAC Addresses for Converted Access Points Using the CLI to Upload Access Point Core DumpsSupporting Oversized Access Point Images Config ap reset-button enable disable ap-nameallCisco Workgroup Bridges WGB ExampleGuidelines for Using WGBs Configure terminal Sample WGB Configuration Using the GUI to View the Status of Workgroup BridgesShow dot11 association 11 Clients Detail 12 WGB Wired Clients Debug dhcp message enable Debug dhcp packet enable Using the CLI to View the Status of Workgroup BridgesUsing the CLI to Debug WGB Issues Debug dot11 mobile enable Debug dot11 state enableConfiguring Backup Controllers Using the GUI to Configure Backup Controllers 14 Global Configuration15 All APs Details for High Availability Using the CLI to Configure Backup Controllers Config advanced timers ap-discovery-timeout interval Config advanced timers auth-timeout intervalConfiguring Failover Priority for Access Points 130016 Global Configuration Using the CLI to View Failover Priority Settings EnabledConfiguring Country Codes Guidelines for Configuring Multiple Country CodesUsing the GUI to Configure Country Codes 19 All APs Details for Advanced Using the CLI to Configure Country Codes Show country supportedShow country Show country channels Config 802.11a enable network config 802.11b enable network Controlling Lightweight Access Points Guidelines for Migration Migrating Access Points to the -U Regulatory DomainConfig country J3 Show ap migrateConfig ap migrate j52w52 all apname Using the W56 Band in Japan Dynamic Frequency SelectionOptimizing Rfid Tracking on Access Points Using the GUI to Optimize Rfid Tracking on Access Points20 802.11b/g/n Cisco APs Configure Using the CLI to Optimize Rfid Tracking on Access Points Config ap monitor-mode tracking-opt CiscoAPConfig 802.11b enable CiscoAP Config advanced probe limit numprobes interval Configuring Probe Request ForwardingConfig advanced probe filter enable disable Show ap monitor-mode summaryInventory Performing a Link Test 22 All APs Details for InventoryUsing the GUI to Perform a Link Test Link Test Configuring Link Latency Using the CLI to Perform a Link TestUsing the GUI to Configure Link Latency 25 All APs Details for AdvancedUsing the CLI to Configure Link Latency Config ap link-latency enable disable CiscoAP allConfiguring Power over Ethernet Config ap link-latency reset CiscoAPUsing the GUI to Configure Power over Ethernet EPoE Power EPoE Mode 15.4 W Optimized 20 WCisco Wireless LAN Controller Configuration Guide Using the CLI to Configure Power over Ethernet Config ap power injector enable CiscoAP all installedConfig ap power injector enable CiscoAP all override Debug ap command led flash seconds CiscoAP Configuring Flashing LEDsUsing the GUI to View Clients Viewing ClientsControlling Lightweight Access Points Viewing Clients 28 Search Clients 29 Clients Detail Using the CLI to View Clients AP MACS69 OL-17037-01