[Make-wifi-fast] Fwd: Re: [iccrg] TCP behavior across WiFi pointers ?

Dave Taht dave.taht at gmail.com
Thu Nov 30 03:04:45 EST 2017


wow. *median* of 7 interfering APs at 2.4ghz. 10% with more than 29 interferers.

On Wed, Nov 29, 2017 at 11:39 PM, Toke Høiland-Jørgensen <toke at toke.dk> wrote:
> The folks over at Meraki had a paper at this year's IMC talking about
> TCP over WiFi.
>
> -Toke
>
>
>
> ---------- Forwarded message ----------
> From: Simon Barber <simon at superduper.net>
> To: Aaron Falk <aaron.falk at gmail.com>
> Cc: Toerless Eckert <tte+ietf at cs.fau.de>, iccrg at irtf.org, tsv-area at ietf.org, Michael Welzl <michawe at ifi.uio.no>, Mark Allman <mallman at icir.org>
> Bcc:
> Date: Wed, 29 Nov 2017 16:41:04 -0800
> Subject: Re: [iccrg] TCP behavior across WiFi pointers ?
> We’ve been doing some studies and work in this area at Meraki.
>
> https://conferences.sigcomm.org/imc/2017/papers/imc17-final203.pdf
>
> Simon
>
>
> On Nov 29, 2017, at 7:17 AM, Aaron Falk <aaron.falk at gmail.com> wrote:
>
> Hey Mark-
>
> Didn't you do some work on TCP over wifi a while ago?
>
> --aaron
>
> On Wed, Nov 8, 2017 at 1:33 PM Michael Welzl <michawe at ifi.uio.no> wrote:
>>
>> I would think that 1) there are probably pointers, and 2) the people who have them should be on the ICCRG list, which I’m cc’ing.
>>
>> I suggest for this to be the last email that includes tsvarea so that the thread entirely moves to ICCRG.
>>
>>
>> > On Nov 8, 2017, at 6:42 PM, Toerless Eckert <tte+ietf at cs.fau.de> wrote:
>> >
>> > Any pointers to work analyzing the differences in behavior when TCP is run
>> > across WiFi as opposed to wired ? Especially with WiFi in the home ?
>> >
>> > I am primarily thinking that there could be a higher demand for
>> > TCP (end-to-end) retransmissions when using WiFi because the L2/WiFi
>> > local retransmissions are insufficient. And if so, what the characteristics
>> > of those end-to-end retransmissions is (would assume they would be larger
>> > than N msec, where N is whatever the L2/wifi protection window is, which
>> > unfortunately i don't know).
>> >
>> > Asking because we've got the poor "must-sit-in-back-of-the-bus" traffic
>> > called IP multicast that is not protected by L2/wifi retransmissions at
>> > all and now we're wondering if carrying it over TCP as a workaround
>> > could help, and therefore trying to educate myself on specific known
>> > issue left when running traffic over TCP over WiFi.
>> >
>> > If any other TSV or other WG mailing list might be a better place to
>> > ask. pls. let me know.
>> >
>> > Thank!
>> >    Toerless
>> >
>>
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-- 

Dave Täht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619


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