[ale] PPP Perfromance

[Holmquist, Thomas W.]

How would one set the MRU and MTU on a Linux box running PPPoE?

-----Original Message-----
From: Ryan [mailto:ryan at vbnet.net]
Sent: Thursday, October 30, 2003 9:52 PM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] PPP Perfromance


I thought MRU and MTU were things that ppp negotiates automatically when
bringing the link up. Is there any benefit to forcibly setting them? Or
are they required to give ppp an idea of what to say during that
negotiation?

> It greatly depends on the system you are connecting through.
>
> For Bellsouth DSL (PPPoE) it was something around 1500. But packet sizes
> need to be smaller for slower transfer mediums like dial-up. If 1024
> works well, bump it up a bit and re-test. If the through-put rate goes
> up, bump it up again. If it goes down, back it down.
>
> On Thu, 2003-10-30 at 07:38, Christopher Fowler wrote:
>> I'm twaeking my ppp performance.  What is the proper mtu and mru
>> settings?
>> Right now I've got them at 1024 each.
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