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Date:      Thu, 25 May 1995 10:21:11 -0700 (PDT)
From:      Poul-Henning Kamp <phk@ref.tfs.com>
To:        pritc003@maroon.tc.umn.edu (Mike Pritchard)
Cc:        hackers@FreeBSD.org
Subject:   Re: Speeding up your slip link
Message-ID:  <199505251721.KAA26940@ref.tfs.com>
In-Reply-To: <199505251707.MAA00815@mpp.com> from "Mike Pritchard" at May 25, 95 12:07:29 pm

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> Just in case anyone is interested, one way I found to squeeze a 
> few more bytes through your SLIP link is to set "tcp_extensions=NO" 
> in your /etc/sysconfig file.  This disables the RFC1323 & RFC1644 
> extensions, which are really intended for high speed links.
> In fact, RFC1323 even suggests disabling it on slow links.
> 
> If you don't normally connect to other hosts that support RFC1323
> and RFC1644 then you won't see any difference.  To determine if
> a host you are connecting to supports RFC1323, try examining 
> some traffic to/from that machine with "tcpdump".  If it indicates
> that the "timestamp" option was present, then it is sending
> the extra RFC1323 data.

I guess we really should have a "bandwidth" for each interface and link
it to that...

-- 
Poul-Henning Kamp <phk@login.dknet.dk> -- TRW Financial Systems, Inc.
'All relevant people are pertinent' && 'All rude people are impertinent'
=> 'no rude people are relevant'



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