On 11/7/2010 3:45 AM, Will Hargrave wrote:
I used to run a large academic network; there was a vanishingly small incidence of edge ports supporting >1500byte MTU.
I run a moderately sized academic network, and know some details of our "other" campus infrastructure (some larger, some smaller). We have two chassis that could do L3 >1500, perhaps 10 with some upgrades. And perhaps a quarter of our switches could do L2 >1500 (we have a lot of older cheap gear at the access layer). The only "demand" for >1500 is iSCSI or FCoE, I can see a "need" for backup traffic off the server farms >1500. We have >1500 enabled in those areas but it's rather localized and not on the consumer side of the network. There's also the computing clusters in the mix, but again that is localized. There are enough headaches getting the marginal 1500s over the various encapsulations, tagging, tunneling, VPNs, etc. I would have to agree on the small edge population even capable of >1500. Jeff