On 26 May 2014 18:07, Russell Coker <[email protected]> wrote: > On Mon, 26 May 2014 17:47:06 Toby Corkindale wrote: >> I don't understand why you're worried about enabling the jumbo frames >> though. It doesn't break backwards compatibility. Your 100baseT stuff >> will continue to function fine. > > Except that a switch will drop a jumbo packet destined for a non-jumbo port. > So you can have situations where things work at low speed but break as soon as > you send lots of data and get a larger TCP segment size.
I've never seen that in practice, and I've been running gigabit networks for a while. Rather than totally dropping the packet if the destination port doesn't support it, the switch should alert the sender that they must fragment their packets. Path MTU discovery. Although actually I think some (most?) switches instead just do the fragmentation themselves. _______________________________________________ luv-main mailing list [email protected] http://lists.luv.asn.au/listinfo/luv-main
