Re: limit on the TCP window size ?

To: iperf-users --at-- dast.nlanr.net
Subject: Re: limit on the TCP window size ?
From: "Jeff W. Boote" <boote --at-- internet2.edu>
Date: Tue, 16 Mar 2004 00:29:02 -0700
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nirav jasapara wrote:
> 
> Hi,
> 
> When i run a simple client server test with a requested window size of 1M (
> anything greater then 256k ) i get a message saying that the
> 
> allocated window size is 256k ... requested 1M.
> 
> Is this the max window size that iperf can allocate or do i have to configure
> something ?

You don't say what OS you are using. Most have a max window size they will
support. (You need both the server and the client to support the larger window.)

See http://www-didc.lbl.gov/TCP-tuning/buffers.html for some.

jeff

References:
- limit on the TCP window size ?
  - From: nirav jasapara

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