Re: IP: optimize as a router not host

Herbert Rosmanith (herp@wildsau.idv.uni-linz.ac.at)
Mon, 18 Mar 1996 10:38:28 +0100 (MET)


>
> Yes, but the router will send out the bad (received) packet to the
> endpoint, the endpoint will complain and return an error through the
> router, the other endpoint will have to resend, the router will have
> to route it one more time,...
>

usually, packets are not bad.
so, on the average it is better(=for performance)
not to compute csum for
forwarded packets.