CCNA Routing and Switching Portable Command Guide, Third Edition

Chapter 21. Cisco Discovery Protocol (CDP)

This chapter provides information and commands concerning the following topic:

Caution

Although CDP is necessary for some management applications, CDP should still be disabled in some instances.

Disable CDP globally if

▪ CDP is not required at all.

▪ The device is located in an insecure environment.

Use the command no cdp run to disable CDP globally:

RouterOrSwitch(config)#no cdp run

Disable CDP on any interface if

▪ Management is not being performed.

▪ The switch interface is a nontrunk interface.

▪ The interface is connected to a nontrusted ...

Get CCNA Routing and Switching Portable Command Guide, Third Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.