On 14-Mar-07, at 10:47 PM, unit3 wrote:
> Jason Ish wrote:
>> PMTU discovery should also take care of that.
> Oh, yes it should. On that note, if I hook up some gigabit devices
> using
> jumbo frames and some 100 mbit devices to said Netgear switch, will
> PMTU
> discovery work there as well? Or does it only work if it crosses
> multiple switches?
I'd have to test to be sure it works that way on the GS608, but thats
the idea. The switch should detect that it can't send the large
frame out a port and then send back an ICMP 'fragmentation needed'
message to the originator.
A really smart bridge/switch could also check if the DF bit is not
set, and then fragment the packet on behalf of the originating host.
Its been a while since I've fiddled with this stuff tho.
-- Jason
Received on Wed Mar 14 23:10:46 2007
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