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Cisco Discovery Protocol
This document describes how to configure Cisco Discovery Protocol (CDP). It contains these sections:
•
Understanding CDP, page 1
•
Configuring CDP, page 1
•
Monitoring and Maintaining CDP, page 4
Understanding CDP
Cisco Discovery Protocol (CDP) is a device-discovery protocol that runs on all Cisco network
equipment. Each device sends identifying messages to a multicast address, and each device monitors the
messages sent by other devices. Information in CDP packets is used in network management software
such as CiscoWorks2000.
CDP is enabled on the WMIC’s Ethernet and radio ports by default.
Note
For best performance on your wireless LAN, disable CDP on all radio interfaces and on subinterfaces if
VLANs are enabled.
Configuring CDP
This section contains CDP configuration information and procedures:
•
Default CDP Configuration, page 2
•
Configuring the CDP Characteristics, page 2
•
Disabling and Enabling CDP, page 2
•
Disabling and Enabling CDP on an Interface, page 3