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Date:      Wed, 15 Jan 1997 16:59:18 -0800 (PST)
From:      Archie Cobbs <archie@whistle.com>
To:        brian@awfulhak.demon.co.uk (Brian Somers)
Cc:        archie@whistle.com, julian@whistle.com, danny@panda.hilink.com.au, ejs@bfd.com, freebsd-hackers@freebsd.org, archie@alpo.whistle.com
Subject:   Re: FreeBSD as an ISDN Router
Message-ID:  <199701160059.QAA23303@bubba.whistle.com>
In-Reply-To: <199701160023.AAA15155@awfulhak.demon.co.uk> from Brian Somers at "Jan 16, 97 00:23:43 am"

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> > > If it's got Charles Mott's alias stuff in it, it should be worth replacin
> > > usr.sbin/ppp with it - it would be nice to have both in the same program 
> > > If it hasn't, I'd be happy to merge them.
> > 
> > Unfortunately, it doesn't...
> > 
> > In which case this effort might be better spent porting the alias
> > stuff to divert(4) sockets, instead of a user-mode ppp daemon. Then
> > it will be more generally useful, since plenty of folks will probably
> > want to stick with ppp (instead of mpd).
> > 
> > I'd be happy to advise, though it shouldn't be too difficult.
> > 
> > MHO,
> > -Archie
> 
> Do you mean that mpd isn't configurable as a single-line ppp daemon ?
> I was thinking along the lines of it being a user-land ppp that can sit
> on a variable number of serial lines.

No, what I meant was that mpd doesn't have Charles Mott's alias stuff in it.

> BTW, how does mpd do its load balancing ?  Does it just send packets to
> the interface with the smallest buffer queue ?

No, it uses a fairly simple strategy whose goal is to make all of the
packet fragments arrive on the other end of the link(s) at the same time.
It computes this based on user inputted values for latency and bandwidth.
This optimizes for both total bandwidth and total latency.

-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com



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