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Article #68Re: Running MHS over Trailblazers
From: Piers Lauder
Date: Wed, 16 Sep 1992 04:55
Date: Wed, 16 Sep 1992 04:55
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2156 bytes
In article <andrewm.716523480@condor> andrewm@assip.csasyd.oz.au (Andrew Moffat) writes:
> I'm looking for some advice on running MHSnet on Trailblazers.
>
> We connect in FAST mode OK, and for small - medium sized files things fly
> along. When large files (maybe > 500K or so) come over the link, things start
> going wrong. Our error count goes up and bytes/sec coming in goes down.
> After a minute or so the link disconnects (whether its due to the low speed
> or high error count I'm not sure).
>
> Our daemon params are;
>
> local="-not -D1024 -S800 -X1800"
> remote="-nit -D1024 -S800 -X1800"
Trailblazers in PEP mode ought to do particularly well on large messages.
We regularly see *overall* throughputs in the 1550 bps range when sending
news messages of ~300k or so. (The "-X1800" is overly optimistic :-) The
"-S800" says to disconnect when the data throughput drops below 800 bps.
You don't say what the errors are -- so first thing to do is look in
your transport daemon log to see what the termination reason is.
(Use "netstatus <linkname>".)
Is your Trailblazer connected using RTS/CTS flow control, or XON/XOFF?
If the latter, then only files small enough to fit in the buffer will
work without error, since you don't specify byte `cooking' ("-CX").
--
Computer Science, Sydney University, Madsen Bldg F09, Sydney NSW 2006
Phone: +61 2 692 3423 Fax: +61 2 692 3838
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arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!sgiblab!sgigate!rutgers!sun-barr!west.West.Sun.COM!sunaus!swift!basser.cs.su.oz.au!newsShow Full Headers
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1057be,693e5373e9ccad21 X-Google-Attributes: gid1057be,public X-Google-ArrivalTime: 1992-09-15 23:32:04 PST Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!sgiblab!sgigate!rutgers!sun-barr!west.West.Sun.COM!sunaus!swift!basser.cs.su.oz.au!news From: piers@basser.cs.su.oz.au (Piers Lauder) Newsgroups: aus.acsnet Subject: Re: Running MHS over Trailblazers Message-ID: <1992Sep16.045547.17876@cs.su.oz.au> Date: 16 Sep 92 04:55:47 GMT Sender: news@cs.su.oz.au (News) Reply-To: piers@cs.su.oz.au (Piers Lauder) Distribution: aus Organization: Basser Dept of Computer Science, University of Sydney, Australia Lines: 30