[Info-vax] TCP, was: Re: Accuweather new contract

[Simon Clubley]

On 2015-03-29, JF Mezei <jfmezei.spamnot at vaxination.ca> wrote:
> 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.
>

Hmm, this has been a standard part of TCP right from the beginning
(RFC 793).

> 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.
>

Are you saying there are stacks around today which don't actually do
this ?

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
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