Cdp And Switch Stacks; Configuring Cdp; Default Cdp Configuration; Configuring The Cdp Characteristics - Cisco Catalyst 3120 Software Manual

Catalyst blade switch for hp

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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

These sections contain this configuration information:

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.

Beginning in privileged EXEC mode, follow these steps to configure the CDP timer, holdtime, and

advertisement type.

Steps 2 through 4 are all optional and can be performed in any order.

configure terminal

cdp timer seconds

Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide

Default CDP Configuration, page 26-2

Configuring the CDP Characteristics, page 26-2

Disabling and Enabling CDP, page 26-3

Disabling and Enabling CDP on an Interface, page 26-4

shows the default CDP configuration.

Default CDP Configuration

Enter global configuration mode.

(Optional) Set the transmission frequency of CDP updates in seconds.

The range is 5 to 254; the default is 60 seconds.

Default Setting

Configuring CDP

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