Cdp Packets; Enabling Interception Of Cdp Packets Globally; Enabling Interception Of Cdp Packets On An Interface - Brocade Communications Systems FastIron Administration Manual

Clearing FDP and CDP statistics
NOTE
This command clears all the updates for FDP and CDP.
Clearing FDP and CDP statistics
To clear FDP and CDP statistics, enter the following command.
device# clear fdp counters
Syntax: clear fdp counters

CDP packets

Cisco Discovery Protocol (CDP) packets are used by Cisco devices to advertise themselves to other
Cisco devices. By default, Brocade devices forward these packets without examining their contents.
You can configure a Brocade device to intercept and display the contents of CDP packets. This
feature is useful for learning device and interface information for Cisco devices in the network.
Brocade devices support intercepting and interpreting CDP version 1 and CDP version 2 packets.
NOTE
The Brocade device can interpret only the information fields that are common to both CDP version 1
and CDP version 2.
NOTE
When you enable interception of CDP packets, the Brocade device drops the packets. As a result,
Cisco devices will no longer receive the packets.

Enabling interception of CDP packets globally

To enable the device to intercept and display CDP packets, enter the following command at the global
CONFIG level of the CLI.
device(config)# cdp run
Syntax: [no] cdprun
The feature is disabled by default.

Enabling interception of CDP packets on an interface

You can disable and enable CDP at the interface level.
You can enter commands such as the following.
device(config)# int e 2/1
device(config-if-2/1)# cdp enable
168 FastIron Ethernet Switch Administration Guide
53-1003625-01