Hello,
I have some multicasting issues with the HP switch we are using. When one of the 2 sunray server in the failover load-balanced group is sending a multicast message, then the switch is dropping unicast packets to that host for 10/20 seconds L Disabling IGMP solves the problem but it is not really ideal. When we are using wireshark or snoop on the solaris 10 05/08 (with SRS4) sunray server, we can observe that Solaris is duplicating the sunray multicast messages on the primary public interface!! Is this normal ? This strange behavior could be triggering a bug on our HP switch. This is not happening on the ce1 dedicated sunray interconnect which is implemented as another vlan on the same switch. bash-3.00# snoop -i ce0.snoop -p 82-83 82 0.00000 xxxx -> 224.101.101.101 UDP D=7009 S=7009 LEN=333 83 0.00053 xxxx -> 224.101.101.101 UDP D=7009 S=7009 LEN=333 In order to troubleshoot this, we have implemented a simple C program on solaris which creates a socket with sends multicast messages on the above sunray servers but we cannot replicate the problem. We can observe that the C program generates single multicast messages whereas solaris duplicates the sunray software multicast messages. Any ideas ? Thanks Thierry.
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