Chapter 27 Configuring CDP

Monitoring and Maintaining CDP

Monitoring and Maintaining CDP

To monitor and maintain CDP on your device, perform one or more of these tasks, beginning in privileged EXEC mode.

Command

Description

 

 

clear cdp counters

Reset the traffic counters to zero.

 

 

clear cdp table

Delete the CDP table of information about neighbors.

 

 

show cdp

Display global information, such as frequency of transmissions and the holdtime

 

for packets being sent.

 

 

show cdp entry entry-name

Display information about a specific neighbor.

[protocol version]

You can enter an asterisk (*) to display all CDP neighbors, or you can enter the

 

 

name of the neighbor about which you want information.

 

You can also limit the display to information about the protocols enabled on the

 

specified neighbor or information about the version of software running on the

 

device.

 

 

show cdp interface [interface-id]

Display information about interfaces where CDP is enabled.

 

You can limit the display to the interface about which you want information.

 

 

show cdp neighbors [interface-id]

Display information about neighbors, including device type, interface type and

[detail]

number, holdtime settings, capabilities, platform, and port ID.

 

You can limit the display to neighbors of a specific interface or expand the display

 

to provide more detailed information.

 

 

show cdp traffic

Display CDP counters, including the number of packets sent and received and

 

checksum errors.

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

OL-9775-02

27-5

 

 

 

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Cisco Systems 3750E manual Monitoring and Maintaining CDP, 27-5