Why use Unicast versus Multicast in Weblogic Clusters -

it's unclear documentation why should use unicast rather multicast in weblogic cluster. have experience using either , benefits of moving unicast?

the main difference between unicast , multicast follows

unicast:

say have 3 servers (ms-1,ms-2,ms-3) in cluster if have communicate each other have ping (i.e. heartbeats ) cluster master informing him alive.

if ms-1 master ms-2 , ms-3 send ping ms-1

multicast:

here there no cluster master each server has ping each other inform alive.

so ms-1 send ping ms-2 & ms-3 same way ms-2 send ping ms-1 & ms-3 , ms-3 ping ms-1 & ms-3.

thus if see in multicast congestion in sending pings more compared unicast makes multicast heavier, wls recommends using unicast of less congestion in network.

hope clears confusion.