On 9/5/07, Bob Doolittle <[EMAIL PROTECTED]> wrote: > ottomeister wrote: > > Sun, at least among the major SF Bay Area campuses, uses > > multicast across subnets. > ... > > This isn't a fair comparison, Otto, because each campus > has a separate FoG. So, we're not connecting our FoGs > via multicast, which I think is the issue at hand. > > We don't do failover between campuses, at least via > FoGs.
Ah, yes, you're right. I was thinking that at least Sunnyvale and SCA shared a FoG because of the episode last spring where IT had cranked up the mcast TTL and were discovering large numbers of out-of-group servers in addition to the group members they were really interested in. I wonder whether that was some sort of transitional measure while they were in the process of relocating servers piecemeal from NWK (and Sunnyvale?) to SCA and MPK. Anyway, as you say, that's not how the campus server groups are configured today, they're using the supported configuration of having all members of the group on a common subnet. So if multicast stops working they can easily go to broadcast as a workaround. 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
