Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 74)

44 Multi-Service IronWare Switching Configuration Guide
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Reading CDP packets
2
The ethernet slot/portnum parameter lists the FDP information.
Displaying FDP and CDP statistics
To display FDP and CDP packet statistics, enter the following command.
Syntax: show fdp traffic
NOTE
Internal errors may be seen if the FDP packet size exceeds a limit of 1496 bytes, due to the
configuration of the interface. This will prevent the transmission of FDP packets on this interface but
will not impact the ability to receive FDP packets.
Clearing FDP and CDP information
You can clear the following FDP and CDP information:
• Information received in FDP and CDP updates
• FDP and CDP statistics
The same commands clear information for both FDP and CDP.
Clearing FDP and CDP neighbor information
To clear the information received in FDP and CDP updates from neighboring devices, enter the
following command.
Brocade# clear fdp table
Syntax: clear fdp table
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.
Brocade# clear fdp counters
Syntax: clear fdp counters
Reading CDP packets
Cisco Discovery Protocol (CDP) is used by Cisco devices to advertise themselves to other Cisco
devices. By default, a Cisco device or a non-Cisco device forwards these packets without examining
their contents. You can configure a 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 2 packets.
BrocadeA# show fdp traffic
CDP/FDP counters:
Total packets output: 6, Input: 5
Hdr syntax: 0, Chksum error: 0, Encaps failed: 0
No memory: 0, Invalid packet: 0, Fragmented: 0
Internal errors: 0