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

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Checking all neighbors

show cdp neighbors
show cdp neighbors detail
show cdp entry *

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Checking specific neighbor

show cdp entry <Device ID>

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Disabling CDP per interface

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

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Disabling CDP globaly

configure terminal 
no cdp run
exit

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

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Pejman Moghadam / Cisco [ TXT ]