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From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] sigcomm wifi
Date: Thu, 21 Aug 2014 10:58:03 +0200	[thread overview]
Message-ID: <20140821085803.GA21250@sesse.net> (raw)
In-Reply-To: <CAGhGL2Cb9fFnhVEkhPDhaf3dj4zBJmYB_WPc3+RaAZ9_+aC5wQ@mail.gmail.com>

On Wed, Aug 20, 2014 at 06:05:57PM -0400, Jim Gettys wrote:
> The reason why 802.11 works ok at IETF and NANOG is that:
>   o) they use Cisco enterprise AP's, which are not badly over buffered.  I
> don't have data on which enterprise AP's are overbuffered.

Note that there's a lot more to this kind of solution than “not badly
overbuffered”. In particular, you have automated systems for channel
assignment, for biasing people onto 5 GHz (which has 10x the number of
nonoverlapping channels) and for forcing people to be load-balanced between
the different APs. All of this helps in high-density.

A lot of what's problematic in crowded areas is actually control traffic,
not data traffic, especially since it is sent on the lowest basic rate.
(So, well, one thing you do is to set 11Mbit or whatever as the lowest basic
rate instead of 1Mbit...)

/* Steinar */
-- 
Homepage: http://www.sesse.net/

  parent reply	other threads:[~2014-08-21  8:58 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-19 16:45 Dave Taht
2014-08-20  7:12 ` Eggert, Lars
2014-08-20 14:01   ` Dave Taht
2014-08-20 22:05   ` Jim Gettys
2014-08-21  6:52     ` Eggert, Lars
2014-08-21  7:11       ` Michael Welzl
2014-08-21  8:30         ` David Lang
2014-08-22 23:07           ` Michael Welzl
2014-08-22 23:50             ` David Lang
2014-08-23 19:26               ` Michael Welzl
2014-08-23 23:29                 ` Jonathan Morton
2014-08-23 23:40                   ` Steinar H. Gunderson
2014-08-23 23:49                     ` Jonathan Morton
2014-08-24  1:33                   ` David Lang
2014-08-24  2:29                     ` Jonathan Morton
2014-08-24  5:12                       ` David Lang
2014-08-24  6:26                         ` Jonathan Morton
2014-08-24  8:24                           ` David Lang
2014-08-24  9:20                             ` Jonathan Morton
2014-08-25  7:25                             ` Michael Welzl
2014-08-30  7:20                             ` Jonathan Morton
2014-08-31 20:46                               ` Simon Barber
2014-08-25  7:35                   ` Michael Welzl
2014-08-24  1:09                 ` David Lang
2014-08-25  8:01                   ` Michael Welzl
2014-08-25  8:19                     ` Sebastian Moeller
2014-08-25  8:33                       ` Michael Welzl
2014-08-25  9:18                         ` Alex Burr
2014-08-31 22:37                       ` David Lang
2014-08-31 23:09                         ` Simon Barber
2014-09-01  0:25                           ` David Lang
2014-09-01  2:14                             ` Simon Barber
2014-08-31 22:35                     ` David Lang
2014-08-21  6:56     ` David Lang
2014-08-21  7:04     ` David Lang
2014-08-21  9:46       ` Jesper Dangaard Brouer
2014-08-21 19:49         ` David Lang
2014-08-21 19:57           ` Steinar H. Gunderson
2014-08-22 17:07             ` Jan Ceuleers
2014-08-22 18:27               ` Steinar H. Gunderson
2014-08-21  8:58     ` Steinar H. Gunderson [this message]
2014-08-22 23:34       ` David Lang
2014-08-22 23:41         ` Steinar H. Gunderson
2014-08-22 23:52           ` David Lang
2014-08-22 23:56             ` Steinar H. Gunderson
2014-08-23  0:03               ` Steinar H. Gunderson
2014-08-21  9:23     ` Mikael Abrahamsson
2014-08-21  9:30       ` Steinar H. Gunderson
2014-08-22 23:30         ` David Lang
2014-08-22 23:40           ` Steinar H. Gunderson
2014-08-20  8:30 ` Steinar H. Gunderson
2014-08-21  6:58   ` David Lang
2014-08-24  3:49 Hal Murray
2014-08-24  3:52 ` Jonathan Morton
2014-08-24  5:14 ` David Lang
2014-08-25  7:43   ` Michael Welzl

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