[Cisco tips] Configuring CDP(Cisco Discovery Protocol)

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CDP is propritary protocol by Cisco. It is enable as default on most of interface, but few exception such as ATM interface. This protocol collects information from Cisco neighbor devices which is directly connected. It is very useful when you don’t have network layout. This protocol is only working within Cisco devices.

To enable entire interfaces

Cisco_Router(config)#cdp run

 

To disable entire interfaces

Cisco_Router(config)#no cdp run

 

To enable particula interface

Cisco_Router(config)#cdp enable

 

To disable particula interface

Cisco_Router(config)#no cdp enable

 

To show

Cisco_Router(config)#show cdp neighbors