Hi. I've been working on the deployment of a Sun Ray server installation across two datacenters. All networking is Cisco gear, and PIM is enabled for the VLANs on all switches and routers in the path. There are 6 hops from server to server, so I have set the TTL in auth.props to 10 (compensating for any future network changes.) The multicast IP is private and not conflicting.
I've captured outgoing multicast packets from the servers, and have found that the TTL of the IGMP packets is still set to 1. (I'm not sure if this is a problem.) The UDP packets show the proper TTL of 10. I can provide a sample of the packets, if needed. I snoop the interface at one datacenter and don't see any multicast packets (UDP or IGMP) originating from the servers at the other site, and vice-versa. I've verified the group signatures as being in sync across the board. The utgstatus command confirms that the group is restricted to only the servers in a single datacenter. I need to get a group working across datacenters to support our SLA for DTU availability. Any help or advice would be appreciated. SRSS 4.0 09/07 Six Sun V440's (three in each datacenter, all on separate VLAN's) Solaris 10 11/06 Generic_125100-05 -Bill
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