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Date:      Mon, 9 Nov 1998 10:41:26 -0600 (CST)
From:      dave <dave@comsite.net>
To:        Chris Shenton <cshenton@uucom.com>
Cc:        archie@whistle.com, questions@FreeBSD.ORG
Subject:   Re: mpd + EQL, Livingston PM2 MLLB, alternatives? mpd load high?
Message-ID:  <Pine.BSF.4.02A.9811091026020.15534-100000@bsdserve1.comsite.net>
In-Reply-To: <8690hkx1vl.fsf@samizdat.uucom.com>

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Hi Chris,

On 9 Nov 1998, Chris Shenton wrote:

> Archie, I've been using your mpd-1.0b4 for a week now and it seems
> very stable. I'm running it between a FreeBSD-2.2.7 box to a -2.2.1
> box, and to a Livingston PortMaster-2 over a single POTS line.

mpd works pretty well for me also...I've been using it for quite some time
now, only I use a Zyxel ISDN TA instead of dual 33.6 modems now.

> 
> 
> I haven't played with multiple lines yet, but that's why I got
> interested in mpd in the first place. I see in the mpd-1.0b5 source
> there's a patch from Dave@comsite.net for Livingstons. Dave: is this
> for the PM's multi-line load balancing (not really *multi-link* PPP)?
> PM2 or only PM3? POTS or only ISDN?
> 

The patch was indeed for the PM2's multi-line load balancing, although it
doesn't get 100% of the performance it could get.  The hack i submitted to
mpd was to make it so that mpd simply alternates sending packets between
the two modems, however, I definitely did see a good performance
improvement over a single modem with the 2 couriers I was using.

I don't know if the hack will work with PM3s...I don't see any
reason why it wouldn't, but I have never tested it.

> If mpd works with Livingston PM2 POTS, I'll probably bail on the old
> FreeBSD box I installed there to use as my endpoint for mpd -- might
> save me some complexity and trouble. But I know the PM2 will only do
> MLLB, not MLPPP over POTS...
> 

You will definitely get better performance with mpd on either end and
going with multilink ppp, but if that is not an option, MLLB should get
decent performance.

> 
> The mpd-1.0b5 code's dated from about Dec'97. Would you still
> recommend it or is user-land PPP up to snuff for multi-link/line?

I prefered mpd over ppp several months ago, but I don't know what changes
have been made to ppp since then.  I never bothered to check anything else
out.

[i dont use dynamic routes so I can't answer the final question]

Have fun,
--Dave Ferovick
dave@comsite.net



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