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
(config)#fdp run or simply by enabling it on a specific interface