If you are familiar with CDP (Cisco Discovery Protocol), then FDP from Brocade is just as the same.
FDP allows each Foundry/Brocade devices to advertise themselves to MAC Address 01-E0-52-CC-CC-CC. FDP packets contain information such as hostname/device ID, software version, product platform and capability, vlan and layer 3 protocol address of the port sending the update.
FDP can be enabled both globally by issuing in configuration
[email protected](config)#fdp run
or simply by enabling it on a specific interface
[email protected](config-if-e1000-2/1)#fdp enable
After enabling FDP, you may preview the results by issuing commands such as
[email protected]#show fdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater (*) indicates a CDP device Device ID Local Int Holdtm Capability Platform Port ID -------------- ------------ ------ ---------- ----------- ------------- sw2- ethernet1/4 174 Router BigIron RX- ethernet1/4 [email protected]#sh fdp neighbors detail Device ID: sw2 configured as tag-type8100 Entry address(es): IP address: xxxxxxxx IP address: xxxxxxxx IP address: xxxxxxxx Platform: BigIron RX-4 Router, Capabilities: Router Interface: ethernet1/4 Port ID (outgoing port): ethernet1/4 is dual-mode with default traffic vlan x in following VLAN(s): xx xx xx xx xx xx xx xx xx xx Holdtime : 129 seconds Version : Foundry Networks, Inc. BigIron RX, IronWare Version [hidden for security reasons]* [email protected]#sh fdp traffic CDP/FDP counters: Total packets output: 624, Input: 25 Hdr syntax: 0, Chksum error: 0, Encaps failed: 0 No memory: 0, Invalid packet: 0, Fragmented: 0 Internal errors: 0
###CDP and FDP###
Foundry/Brocade Devices can also intercept and interpret CDP packets of version 1 and 2. To achieve this, you simply need to enable “cdp” either globally or per interface as with FDP.
[email protected](config)#cdp run
[email protected](config-if-e1000-2/1)#cdp enable
It is now important to keep in mind that a brocade device will drop a CDP packet when in “interception mode” after read the CDP packet’s information fields. That is, you may want to disable it if you have Cisco devices chaining up to Foundry/Brocade switches.