System Management Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

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System Management Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

Enable CDP

Updated: June 12, 2026

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Teaches you how to enable CDP globally and on specific interfaces to ensure your router shares device information with directly connected Cisco equipment.

Enable CDP so that the router shares device information with other directly connected Cisco devices.

To enable CDP, first enable it globally on the router. Then enable CDP on each interface.

Before you begin

Verify that the CDP package is installed on your router.

Procedure

	1.	Enable CDP globally. Example: `Router#configure Router(config)#cdp Router(config)#commit`
	2.	Enable CDP on the specific interface. Example: `Router#configure Router(config)#interface hundredGigE 0/0/0/4 Router(config-if)#cdp Router(config-if)#commit`

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Enable CDP

Before you begin

Procedure

Example:

Example: