Cisco Systems 3560 사용자 설명서
25-2
Catalyst 3560 Switch Software Configuration Guide
OL-8553-06
Chapter 25 Configuring CDP
Configuring CDP
Configuring CDP
These sections contain this configuration information:
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Default CDP Configuration
shows the default CDP configuration.
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.
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.
advertisement type.
Note
Steps 2 through 4 are all optional and can be performed in any order.
Table 25-1
Default CDP Configuration
Feature
Default Setting
CDP global state
Enabled
CDP interface state
Enabled
CDP timer (packet update frequency)
60 seconds
CDP holdtime (before discarding)
180 seconds
CDP Version-2 advertisements
Enabled
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
cdp timer seconds
(Optional) Set the transmission frequency of CDP updates in seconds.
The range is 5 to 254; the default is 60 seconds.
Step 3
cdp holdtime seconds
(Optional) Specify the amount of time a receiving device should hold the
information sent by your device before discarding it.
information sent by your device before discarding it.
The range is 10 to 255 seconds; the default is 180 seconds.
Step 4
cdp advertise-v2
(Optional) Configure CDP to send Version-2 advertisements.
This is the default state.
Step 5
end
Return to privileged EXEC mode.