CDP Network Management Standard

Overview

CDP is used to discover the neighbor networking devices. CDP mostly works with Cisco hardware only, but some other vendors have implemented this as well. CDP is critical in network discoveries and it needs to be enabled on the all the devices. CDP is a layer two protocol only so it does not work over certain types of connections like ATM. Also, it is important to use source interface for CDP where supported so that same management address is observed from different device interfaces so there is no chance for duplication or incorrect management IP address assignment during the network discovery.

Standard Template

! CDP is enabled by default.

!

cdp source-interface [interface]  <- Same interface used for the Tacacs source interface.