--On Tuesday, March 5, 2002 3:30 PM +0100 Thomas Langås <tlan@stud.ntnu.no> wrote: > David S. Miller: >> Most gigabit switches don't support 9000 byte mtu :-) > > Hmm, I found a document through google; Cisco Catalyst 4006 doesn't > support 9KB MTUs, so I'll contact the networking guys and fix this, > we want switches that supports large MTUs :) Good luck; they're fairly rare. From what I can tell, Cisco only supports jumbo frames on the Catalyst 5000 and 6000 families. Extreme supports them on at least a few models. The cheapest jumbo frame switch that I could find is the Intel 480T, which is over $7,000. After doing a bunch of benchmarking, for our hardware and workload, jumbo frames don't really seem to help performance much anyway, so I ended up getting a $1,300 Dell 5012 (10 10/100/1000, 2 GBIC) switch. I've heard rumors that Asante will have a jumbo-capable switch in May or so. Since they seem to OEM the same hardware that Dell does (for 3x Dell's cost), I wouldn't be too suprised to see a $1,500 16-port gig switch from Dell in a few months. Scott - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html