Cisco Systems OL-17037-01 Configuring Power over Ethernet, Config ap link-latency reset CiscoAP

Page 70

Chapter 7 Controlling Lightweight Access Points

Configuring Power over Ethernet

Step 3 To clear the current, minimum, and maximum link latency statistics on the controller for a specific access point, enter this command:

config ap link-latency reset Cisco_AP

Step 4 To view the results of the reset, enter this command:

show ap config general Cisco_AP

Configuring Power over Ethernet

When an access point that has been converted to lightweight mode (such as an AP1131 or AP1242) or a 1250 series access point is powered by a power injector that is connected to a Cisco pre-Intelligent Power Management (pre-IPM) switch, you need to configure Power over Ethernet (PoE), also known as inline power.

The dual-radio 1250 series access points can operate in four different modes when powered using PoE:

•20.0 W (Full Power)—This mode is equivalent to using a power injector or an AC/DC adapter.

•16.8 W—Both transmitters are used but at reduced power. Legacy data rates are not affected, but the M0 to M15 data rates are reduced in the 2.4-GHz band. Throughput should be minimally impacted because all data rates are still enabled. The range is affected because of the lower transmit power. All receivers remain enabled.

•15.4 W—Only a single transmitter is enabled. Legacy data rates and M0 to M7 rates are minimally affected. M8 to M15 rates are disabled because they require both transmitters. Throughput is better than that received with legacy access points but less than the 20 and 16.8 W power modes.

•11.0 W (Low Power)—The access point runs, but both radios are disabled.

These modes provide the flexibility of running the 1250 series access points with the available wired infrastructure to obtain the desired level of performance. With enhanced PoE switches (such as the Cisco Catalyst 3750-E Series Switches), the 1250 series access points can provide maximum features and functionality with minimum total cost of ownership. Alternatively, if you decide to power the access point with the existing PoE (802.3af) switches, the access point chooses the appropriate mode of operation based on whether it has one radio or two.

Note For more information on the Cisco PoE switches, refer to this URL:

http://www.cisco.com/en/US/prod/switches/epoe.html

	Cisco Wireless LAN Controller Configuration Guide
7-70	OL-17037-01

Image 70

Contents Controlling Lightweight Access Points Guidelines for Using Capwap Access Point Communication ProtocolsController Discovery Process Page Config network master-base enable Verifying that Access Points Join the ControllerConfig network master-base disable Viewing Capwap MTU Information Configuring Global Credentials for Access PointsDebugging Capwap Global Configuration All APs Details for Credentials Show ap config general CiscoAP Save configShow 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 Using SSCs Authorizing Access PointsAuthorizing 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 revert-cert retries Config certificate lsc ap-provision auth-list add APmacaddrShow 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 GUI to Upload Radio Core Dumps Using the CLI to Retrieve 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 Using the GUI to View the Status of Workgroup Bridges Sample WGB ConfigurationShow 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 Show country supported Using the CLI to Configure Country CodesShow 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 Config ap monitor-mode tracking-opt CiscoAP Using the CLI to Optimize Rfid Tracking on Access PointsConfig 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 Config ap power injector enable CiscoAP all installed Using the CLI to Configure Power over EthernetConfig 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