[142519] in North American Network Operators' Group
Re: [pfSense Support] Strange TCP connection behavior 2.0 RC2 (+3)
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Wed Jun 29 16:49:03 2011
Date: Wed, 29 Jun 2011 22:48:55 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Cameron Byrne <cb.list6@gmail.com>
In-Reply-To: <BANLkTi=YCgTvVZ3KWX6dtPJRu7obTeOujw@mail.gmail.com>
Cc: NANOG list <nanog@nanog.org>,
"williamejsalt@googlemail.com" <williamejsalt@googlemail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, 29 Jun 2011, Cameron Byrne wrote:
> Sounds like a vendor specific issue :(
Absolutely, but this is way too typical for these kinds of networks.
> Good tcp vs default tcp will not close the window tight due to some
> ephemeral loss or delay. The penalties are generally too strong in tcp for
> the issues of delay and loss in 3g ... this is one of the main selling
> points for tcp proxies .... but better done with modern tcp on the clients
> instead of a middle box
For what kind of devices? I can get full speed (870 kilobyte/s) on 7.2
HSPA with single TCP stream on a linux box. Are you referring to handsets
that get improvement on high latency links?
--
Mikael Abrahamsson email: swmike@swm.pp.se
