On Fri, May 19, 2006 at 08:49:19AM -0700, Jim Lux wrote: > a) There's likely to be 10Gbps ethernet over ordinary cat 5e/6 cabling > soon. (Solarflare is one company working on it)
They're all trying, but it's unclear if it will be cheap enough and have low enough of a bit error rate to be useful in large clusters. > b) There's some interesting work from companies like Fulcrum on very fast > switches using asynchronous logic. Yep, this was publically shown at the last SC. > They have an architecture that essentially routes with zero copy > inside the switch. This has been the way most people build their non-Ethernet switch chips for a long time. There's still one copy. Don Becker has a funny definition of "zero copy", he says that it means someone else does the copy. This meets Don's defintion. > c) for high speeds, circuit switching is where it's at, rather than classic > store and forward packet switching. I haven't seen any modern switch doing circuit switching. Everyone uses cut-through packet switching for non-Ethernet switches. -- greg _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
