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Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
OL-12247-01
Chapter 26 Configuring CDP
Configuring CDP
Use the no form of the CDP commands to return to the default settings.
This example shows how to configure CDP characteristics.
Switch#
configure terminal
Switch(config)#
cdp timer 50
Switch(config)#
cdp holdtime 120
Switch(config)#
cdp advertise-v2
Switch(config)#
end
For additional CDP show commands, see the
“Monitoring and Maintaining CDP” section on page 26-5
.
Disabling and Enabling CDP
CDP is enabled by default.
Beginning in privileged EXEC mode, follow these steps to disable the CDP device discovery capability:
Beginning in privileged EXEC mode, follow these steps to enable CDP when it has been disabled:
This example shows how to enable CDP if it has been disabled.
Switch#
configure terminal
Switch(config)#
cdp run
Switch(config)#
end
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.
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.
Step 6
show cdp
Verify your settings.
Step 7
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
no cdp run
Disable CDP.
Step 3
end
Return to privileged EXEC mode.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
cdp run
Enable CDP after disabling it.
Step 3
end
Return to privileged EXEC mode.