Default Cdp Configuration; Configuring The Cdp Characteristics - Cisco 3845 - Security Bundle Router Software Manual

Configuring CDP
Configuring CDP
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Default CDP Configuration

Table 20-1
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
Step 3 cdp holdtime seconds
Step 4 cdp advertise-v2
Step 5 end
Cisco ME 3800X and 3600X Switch Software Configuration Guide
20-2
Default CDP Configuration, page 20-2
Configuring the CDP Characteristics, page 20-2
Disabling and Enabling CDP, page 20-3
Disabling and Enabling CDP on an Interface, page 20-4
CDP and Ethernet Flow Points (EFPs), page 20-4
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.
(Optional) Specify the amount of time a receiving device should hold the
information sent by your device before discarding it.
The range is 10 to 255 seconds; the default is 180 seconds.
(Optional) Configure CDP to send Version-2 advertisements.
This is the default state.
Return to privileged EXEC mode.
Chapter 20
Default Setting
Enabled.
Enabled only on NNIs; disabled on ENIs
Note CDP is not supported on UNIs.
60 seconds
180 seconds
Enabled
Configuring CDP
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