1. I experience flooding of UDP packets and machine freeze when put rate is high. Using java MulticastSocket and Datagrams. Tried with iperf simulation same problem.
2. Tested with 2 machines to be in same multicast group, observerd that packets go to all other machines also which are not in multicast group.
3. Experience packet loss when put rate is high.
Enabled IGMP snooping on CISCO switch but same problem. Looks like IGMP forwarding table is not correct.
CISCO switch - 3560G (gigabit L3 switch)