From: "Geo" 

"Gregg N"  wrote in message
news:Xns965D9C67C7BF7gregginvalidinvalid{at}216.144.1.254...

> First, I don't see what fragmentation has to do with running out of
> buffer space. Fragmentation in IP is just to accomodate the datalink/MAC
> layer.

Actually I was thinking fragmentation would use more cpu and slow the
router down creating a delay and thus requiring more buffering.

> But in any case, no, IP (and UDP) does not have any mechanism for telling
> the sender to hold up. If the router runs out of buffer space, it can
> just drop the packet. Recovery from this sort of thing is the
> responsibility of higher layers such as TCP, which I am not using in my
> test.

What about at the ethernet level? If a packet is dropped, no notification
at all is sent back from a local router?

Geo.

--- BBBS/NT v4.01 Flag-5