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Date:      Wed, 6 Dec 1995 13:07:47 -0500 (EST)
From:      Geoff Wells <geoff@ginsu.com>
To:        freebsd-hackers@FreeBSD.org
Subject:   pppd speed problems
Message-ID:  <Pine.NEB.3.91.951206125603.6546A-100000@schwing.ginsu.com>

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Hi again...

Lets get this out of the way right now:

system: 486/33 ISA with 1.2 gig IDE drive and 16 megs RAM
OS:     FreeBSD 2.0

I'm having a hard time with the pppd.  I can get it to connect and
run with no problem but I can't seem to get more than about .5 k/sec
over a 28.8 modem no matter what I do.  Also, the link seems to be
chunky and unresponsive.  It gives me some good bursts for a second
or so but then hangs for a couple of seconds.

I've tried changing the handshakeing but this doesn't seem to help.  I've
also tried changing the modem on the other end as well as the provider on
the other end and it didn't help.

I have even tried replacing the modem on my end with the same results.
The interesting thing about that was I still got the same performance
(~ .5k/sec) but the modem I replaced the 28.8 with was a 14.4.  I thought
this showed the problem to be a serial port problem so I tried tipping
into my provider and doing a sz/rz of a file and got a throughput of
about 3k/sec!  6 times as fast!

Am I missing something here?  I've been going at this for about a month
and really haven't gotten anywere.  (except a screwed machine on a few
occations  :)

Thanks for any help!

Geoff.




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