[Info-vax] Accuweather new contract

[JF Mezei]

re: improving the IP stack.

Some newer OS have IP stacks that are able to handle TCP much more
efficiently, not only offloading work to the ethernet card, but also
sending ACKs for multiple packets instead of ACKs for each packet.

aka: if you have received sequence number 562 and 563, you can ACK 563
and this implicitely says you have received all packets until 563, and
this includes 562. For fast data transfers, this ends up greatly
reducing ACK processing and traffic on the uplink.