Cdp And Switch Stacks; Default Cdp Configuration; Configuring The Cdp Characteristics - Cisco Catalyst 3560-X Software Configuration Manual

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Table of Contents

Configuring CDP

For a switch and connected endpoint devices running Cisco Medianet

The switch supports CDP Version 2.

CDP and Switch Stacks

A switch stack appears as a single switch in the network. Therefore, CDP discovers the switch stack, not

the individual stack members. The switch stack sends CDP messages to neighboring network devices

when there are changes to the switch stack membership, such as stack members being added or removed.

Configuring CDP

CDP global state

CDP interface state

CDP timer (packet update frequency)

CDP holdtime (before discarding)

CDP Version-2 advertisements

You can configure the frequency of CDP updates, the amount of time to hold the information before

discarding it, and whether or not to send Version-2 advertisements.

Catalyst 3750-X and 3560-X Switch Software Configuration Guide

CDP identifies connected endpoints that communicate directly with the switch.

To prevent duplicate reports of neighboring devices, only one wired switch reports the location

information.

The wired switch and the endpoints both send and receive location information.

For information:

http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_cdp_discover.html.

Default CDP Configuration, page 1-2

Configuring the CDP Characteristics, page 1-2

Disabling and Enabling CDP, page 1-3

Disabling and Enabling CDP on an Interface, page 1-4

Default CDP Configuration

Default Setting

Configuring CDP

Catalyst 3750-x