CISCO DISCOVERY PROTOCOL (CDP)POINTS TO REMEMBER: CDP is a Cisco Proprietary protocol which is enable by default in all Cisco Routers & helps in knowing the Hardware/Protocol information of the neighboring routers or devices.

CDP works on layer 3 i.e. network layer.

TROUBLESHOOTING THROUGH CDPDelhi routerBangalorerouter

Mumbairouter

Delhi clientBangalore clientMumbai client

TROUBLESHOOTING TROUGH CDP

SHOW CDPSHOW CDP NEIGHBORSHOW CDP NEIGHBOR DETAILSHOW CDP TRAFFICSHOW CDP INTERACE SHOW CDP STATUS

TROUBLE SHOOTING THROUGH CDP