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17-3
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-29225-01
Chapter 17 Configuring CDP
Configuring CDP
Use the no form of the CDP commands to return to the default settings.
This example shows how to configure and verify CDP characteristics:
AP# configure terminal
AP(config)# cdp holdtime 120
AP(config)# cdp timer 50
AP(config)# end
AP# show cdp
Global CDP information:
Sending a holdtime value of 120 seconds
Sending CDP packets every 50 seconds
For additional CDP show commands, see the “Monitoring and Maintaining CDP” section on page 17-4.
Disabling and Enabling CDP
CDP is enabled by default. Beginning in Privileged Exec mode, follow these steps to disable the CDP
device discovery capability.
Beginning in privileged EXEC mode, follow these steps to enable CDP:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
cdp holdtime seconds (Optional) Specify the amount of time a receiving device should
hold the information sent by your device before discarding it.
The range is from 10 to 255 seconds; the default is 180 seconds.
Step 3
cdp timer seconds (Optional) Set the transmission frequency of CDP updates in
seconds.
The range is from 5 to 254; the default is 60 seconds.
Step 4
end Return to Privileged Exec mode.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
no cdp run Disable CDP.
Step 3
end Return to Privileged Exec mode.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
cdp run Enable CDP after disabling it.
Step 3
end Return to privileged EXEC mode.