From: bert hubert <ahu@ds9a.nl>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] TCP MSS clampage
Date: Thu, 28 Feb 2002 16:50:42 +0000 [thread overview]
Message-ID: <marc-lartc-101491509817177@msgid-missing> (raw)
In-Reply-To: <marc-lartc-101491222506911@msgid-missing>
On Thu, Feb 28, 2002 at 04:02:54PM +0000, Tim Carr wrote:
> Hey,
>
> My internet is provided via ADSL using PPPoE. When I take a look at
> ifconfig's output, I see that eth0 has an MTU of 1500, and ppp0 has an MTU
> of 1492. I don't _think_ that rp-pppoe (my pppoe util) is clamping the MSS.
> I am noticing some latency when there's a lot of bandwidth in use (but not
Don't think, meassure :-)
> >90%). What should I clamp, eth0/ppp0? How much? And what with, rp-pppoe,
> or tc/iproute2/etc ? I guess I don't really understand clamping MSS, can
> someone explain it in laymans terms? I have read the lartc-FAQ, and the only
> time I see clamping-MSS mentioned is section 15.7, which doesn't really
> explain why you'd do it.
If you don't experience any problems then by all means do not tcp clamp.
rp-pppoe comes with wonderful documentation, I suggest you read it :-)
Regards,
bert
--
http://www.PowerDNS.com Versatile DNS Software & Services
http://www.tk the dot in .tk
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
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prev parent reply other threads:[~2002-02-28 16:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-28 16:02 [LARTC] TCP MSS clampage Tim Carr
2002-02-28 16:50 ` bert hubert [this message]
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