On 9/5/07, Quayle, Bill (ETS) <[EMAIL PROTECTED]> wrote: > As it turns out, the root of the problem was caused by one of the Cisco > dudes fat-fingering a config on an uplink. All six servers in two > datacenters are quite happily awaiting our DTU deployment! We utilize > multicast quite substantially in our production applications, so it > surprised me that this wasn't working out of the gate. > > This being an "unsupported configuration" begs the question, though... > Is there a better way to do this? In order to support my SLA on the > DTU's, I need to share my group across datacenters. We don't route > VLANs across datacenters, which only leaves multicast routing. It seems > like a very elegant solution, so I'm just curious... What does Sun do?
Sun, at least among the major SF Bay Area campuses, uses multicast across subnets. The IT guys know that if multicast stops working then the Sun Ray service across these campuses will be disrupted, but they're confident that it works and will continue to work. An alternative would have been to create a VLAN segment in common across all of the servers, which means that they could fall back to using broadcasts if multicast failed. They could still do that if multicast suffered a meltdown but apparently it's been pretty solid so far. OttoM. __ ottomeister Disclaimer: These are my opinions. I do not speak for my employer. _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
