On Thu, Mar 15, 2007 at 09:54:09AM -0600, Scott Wunsch wrote:
> On Wed, 14-Mar-2007 at 23:09:58 -0600, Jason Ish wrote:
>
> > 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.
>
> How does a layer 2 switch understand IP flags like DF, and know how to
> send ICMP messages?
It wouldn't, it would be up to the sending and receiving hosts to figure
that out through path MTU discovery.
If the switch isn't able to deal with jumbo frames, there are only two
things it might do, drop the frame or truncate the frame.
Received on Thu Mar 15 10:33:58 2007
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