netdev - Re: [Patch] fix packet loss and massive ping spikes with PPP multi-link

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Message-ID: <v2v2d460de71003260939w4877df7em9e3084a315b0962f@mail.gmail.com>
Date:	Fri, 26 Mar 2010 17:39:27 +0100
From:	Richard Hartmann <richih.mailinglist@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linux-ppp@...r.kernel.org
Subject: Re: [Patch] fix packet loss and massive ping spikes with PPP 
	multi-link

On Fri, Mar 26, 2010 at 17:02, Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> You should be able to manage that I'm sure:

Hopefully. We will see :)

> MODULE_PARM_DESC(ml_expode, "Set this to zero to disabling multilink \
>        fragmentation when talking to cisco devices");

To be exact, this is not a Linux vs. Cisco issue, but a Linux vs. world
issue.

At least the last-level support of Telefonica and QSC was definite and
adamant about not enabling fragmentation on _any_ PPP multi-link, ever.

Also, I am not sure if it would not be better to default to no
fragmentation and enable it optionally. I am aware that changing default
behaviour is always a bit of a problem but to the best of my knowledge
enabling fragmentation is a bug in any and all real-world applications.

Richard
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