[Make-wifi-fast] Fwd: Re: [iccrg] TCP behavior across WiFi pointers ?
simon at superduper.net
Thu Nov 30 17:59:41 EST 2017
Certain things, yes, others - not so much. No congestion control for example. It’s very much the common case that the wireless client is the TCP endpoint, and it’s rare to see drops, but they do happen. FastACK keeps the TCP ACK rate controlled by the wireless bandwidth, unlike a proxy. This is the key innovation here.
> On Nov 30, 2017, at 2:50 PM, Toke Høiland-Jørgensen <toke at toke.dk> wrote:
> On 30 November 2017 23:35:33 CET, Simon Barber <simon at superduper.net> wrote:
>> This was our assumption (client = endpoint, 802.11 ACK = TCP delivery),
>> but we discovered that this is not always the case, even where the
>> client is the endpoint. FastACK keeps the data around and retransmits
>> it in this case.
> Ah. So that means you have something very close to a full TCP
> state machine in the AP?
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