gaurang.malgaonkar wrote:
     can any one tell me difference between flooding and broa     
dcast?

Broadcast is used when the destination address is a broadast address.

Flooding is generally used to refer to when a packet is sent out of all ports on a switch because the switch does not have an entry in the mac-address table for that destination mac-address. So unlike broadcast the packet may have a unicast destination address but it is still sent out of all ports.

You may find that some books etc. use the terms interchangeably so it can get a bit confusing.

Jon