netdev - Re: Socket buffer sizes with autotuning

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Message-ID: <1e41a3230804221917m4af32ed9ice8225c943d3ffa2@mail.gmail.com>
Date:	Tue, 22 Apr 2008 19:17:39 -0700
From:	"John Heffner" <johnwheffner@...il.com>
To:	"Rick Jones" <rick.jones2@...com>
Cc:	"Linux Network Development list" <netdev@...r.kernel.org>
Subject: Re: Socket buffer sizes with autotuning

On Tue, Apr 22, 2008 at 5:38 PM, Rick Jones <rick.jones2@...com> wrote:
>  oslowest:~# netstat -an | grep ESTAB
>  ...
>  tcp    0 2760560 10.208.0.1:40500    10.208.0.45:42049   ESTABLISHED
>  ...
>
>  Is this expected behaviour?

What is your interface txqueuelen and mtu?  If you have a very large
interface queue, TCP will happily fill it up unless you are using a
delay-based congestion controller.

  -John
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