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20-4
Catalyst 2950 Desktop Switch Software Configuration Guide
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Chapter 20 Configuring CDP
Configuring CDP
This example shows how to enable CDP if it has been disabled.
Switch# configure terminal
Switch(config)# cdp run
Switch(config)# end
Disabling and Enabling CDP on an Interface
CDP is enabled by default on all supported interfaces to send and receive CDP information.
Beginning in privileged EXEC mode, follow these steps to disable CDP on an interface:
Beginning in privileged EXEC mode, follow these steps to enable CDP on an interface when it has been
disabled:
This example shows how to enable CDP on an interface when it has been disabled.
Switch# configure terminal
Switch(config)# interface fastethernet0/5
Switch(config-if)# cdp enable
Switch(config-if)# end
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Enter interface configuration mode, and enter the interface on which
you are disabling CDP.
Step 3
no cdp enable Disable CDP on an interface.
Step 4
end Return to privileged EXEC mode.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Enter interface configuration mode, and enter the interface on which
you are enabling CDP.
Step 3
cdp enable Enable CDP on an interface after disabling it.
Step 4
end Return to privileged EXEC mode.
Step 5
copy running-config startup-config (Optional) Save your entries in the configuration file.