Pejman Moghadam / Cisco

CDP: Cisco Discovery Protocol

CDP: Cisco Discovery Protocol is a Cisco proprietary protocol that allows you discover directly connected Cisco devices. It is a data link layer (layer 2) network protocol and it send announcements to the multicast destination address 01-00-0c-cc-cc-cc.

Public domain

Checking all neighbors

show cdp neighbors
show cdp neighbors detail
show cdp entry *

Checking specific neighbor

show cdp entry <Device ID>

Disabling CDP per interface

configure terminal 
interface gigabitEthernet 1/0/1
no cdp enable 

Disabling CDP globaly

configure terminal 
no cdp run

BY: Pejman Moghadam
TAG: cdp
DATE: 2012-02-01 18:33:00

Pejman Moghadam / Cisco [ TXT ]