ADSM-L

Re: TCPWindowsize

2005-12-27 16:19:19
Subject: Re: TCPWindowsize
From: "Allen S. Rout" <asr AT UFL DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 27 Dec 2005 16:19:14 -0500
==> On Tue, 27 Dec 2005 11:03:59 -0600, John Monahan <JMonahan AT COMPURES DOT 
COM> said:


> Check out the TSM performance and tuning guide.  It has specific
> recommendations for all of those types of values.  TCPWindowsize should be
> set to 63 on Linux.


Keep in the back of your mind that you might need a larger window size for
high latency links.  I'm doing some remote virtual volume work at about the
300 mile range, and the classical TCP/IP tuning recommendations for that at
gigabit speeds are much higher.

http://publib16.boulder.ibm.com/pseries/en_US/aixbman/prftungd/netperf3.htm

- Allen S. Rout

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