Re: TCP Algorithms in Linux Red-hat

From: Stephen Donnelly (sfd@cs.waikato.ac.nz)
Date: 05/01/01 

Message-ID: <3AEF435A.BE71A30F@cs.waikato.ac.nz>
Date: Wed, 02 May 2001 11:14:34 +1200
From: Stephen Donnelly <sfd@cs.waikato.ac.nz>
Subject: Re: TCP Algorithms in Linux Red-hat

Ruhai Wang wrote:
>
> I am wondering if there is any straight way I can know what variants of TCP
> or what TCP algorithms (e.g. Slow Start, Congestion Avoidance, Fast
> Retransmit, Fast Recovery, SACK or others) were implemented in different
> Red-Hat Linux, e.g. Red-Hat Linux 6.1 with Kernel 2.2.12-20 I am using?

Have a look in /proc/sys/net/ipv4/

E.G. cat /proc/sys/net/ipv4/tcp_sack
will return 1 if SACK is on, etc.

You can even change the settings by doing say
echo 0 >/proc/sys/net/ipv4/tcp_sack
to disable it.

Stephen. 

-- 
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    Stephen Donnelly (BCMS)             email: sfd@cs.waikato.ac.nz
    WAND Group                      Room GG.15 phone +64 7 838 4086
    Computer Science Department, University of Waikato, New Zealand
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