Re: TCP Questions of Kernel 2.2.5

Alan Cox (alan@lxorguk.ukuu.org.uk)
Sat, 24 Apr 1999 01:40:01 +0100 (BST)

> I have the follow questions for the TCP in Linux 2.2.5 kernel:
>
> 1) Is TCP Vegas still implemented in 2.2.5 kernel?
> if yes, how to enable it? If not, where can I find a Vegas
> implementation for linux?
>
> 2) Is TCP FACK implemented in 2.2.5 kernel?
> If yes, how to enable it?
>
> 3) The default TCP in 2.2.5 kerenl is TCP Sack, If I disable it,
> which TCP version Linux will use?

Life isnt so simple. FACK/SACK are heuristics, they are not TCP versions
and they only change the behaviour in some ways.

Vegas was in some of the 2.1.x experimental kernels. It didnt seem to
perform well and it has never become "accepted practice".

For tcp tuning look in /proc/sys/net/ipv4/

Alan

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