Multicast

how multicast works:Step 1: server will create one stream. this stream will go to multicast GDA - group destination addressStep 2: employee will have an application to listen to stream:- layer 2: ethernet will check destination MAC address, if it is unicast or broadbast: NIC will pick it up and send to CPUwhen clicking to applications:- layer 2 is also listening to multicast address.step 3) employee will send IGMP to default gatewaystep 4) default gateway invokes multicast routing protocol:PIMmutlicast address:layer 2:1) reserved IOUs for multicast:for ipv4= MAC will be 0100:5eXX:XXXXfor ipv6=3333:XXXX:XXXX