Cisco Discovery Protocol

=> Display global CDP information (Such as timers)
Router#show cdp

=> Displays information about neighbors
Router#show cdp neighbors

=> Displays more detail about the neighbor device
Router#show cdp neighbors detail

=> Display information about the device named word
Router#show cdp entry word

=> Display information about all devices
Router#show cdp entry *

=> Display information about interface that have CDP running
Router#show cdp interface

=> Displays information about specific interface x.x.x.x running CDP
Router#show cdp interface x.x.x.x

=> Display traffic information
Router#show cdp traffic

=> Change the length of time to keep CDP packets
Router(config)#cdp holdtime x

=> Change how often CDP updates are sent
Router(config)#cdp timer x

=> Enable CDP globally
Router(config)#cdp run

=> Turn off CDP globally
Router(config)#no cdp run

=>Enable CDP in specific interface
Router(config-if)#cdp run

=> Turn off CDP in specifig interface
Router(config-if)#no cdp run

=> Resets traffic counters to 0
Router#clear cdp counters

=> Deletes the CDP table
Router#clear cdp table

=> Monitors CDP neighbor information
Router#show cdp adjacency

=> Monitors all CDP events
Router#debug cdp adjacency