Configuring Cdp; Default Cdp Configuration; Configuring The Cdp Characteristics - Cisco Catalyst 2928 Software Configuration Manual

Configuring CDP

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The switch supports CDP Version 2.
Configuring CDP
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Default CDP Configuration

Table 23-1
Table 23-1
Feature
CDP global state
CDP interface state
CDP timer (packet update frequency)
CDP holdtime (before discarding)
CDP Version-2 advertisements

Configuring the CDP Characteristics

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.
Note
Command
Step 1
configure terminal
Step 2
cdp timer seconds
Catalyst 2928 Switch Software Configuration Guide
23-2
The wired switch and the endpoints both send and receive location information.
For information, go to
http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_cdp_discover.html.
Default CDP Configuration, page 23-2
Configuring the CDP Characteristics, page 23-2
Disabling and Enabling CDP, page 23-3
Disabling and Enabling CDP on an Interface, page 23-4
shows the default CDP configuration.
Default CDP Configuration
Purpose
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.
Chapter 23
Default Setting
Enabled
Enabled
60 seconds
180 seconds
Enabled
Configuring CDP
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