Re: limit on the TCP window size ?
Nirav,
Jeff Boote's reply to the list mentions the lbl page; also take a look at
http://www.psc.edu/networking/perf_tune.html
as mentioned in the Iperf documentation. Both of these pages have
specifics or references for settings on FreeBSD and Linux.
On Tue, 16 Mar 2004, nirav jasapara wrote:
> Hi,
>
> I am running iperf on both FreeBSD4.7 and Redhat 7.3.
>
> I think i cannot get max throughput out of 1Gbps ethernet adapter because the
> window size max's out at 264Kbytes. I need a larget window size to get full
> bandwidth out of this adapter.
>
> What is the configuration change required for each OS ?
>
> thanks,
> - Nirav
>
> ----- Original Message -----
> From: Jim Ferguson <ferguson --at-- ncsa.uiuc.edu>
> Date: Monday, March 15, 2004 11:26 pm
> Subject: Re: limit on the TCP window size ?
>
> > Nirav,
> > You'll need to change configuration. What OS are you using?
> > -Jim
> >
> > At 09:16 PM 3/15/2004 -0800, you 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 ?
> > >
> > >- Nirav.
> >
> >
>
--
John S. Estabrook
jestabro --at-- ncsa.uiuc.edu
jestabro --at-- dast.nlanr.net