Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!netcom!gandrews
From: gandrews@netcom.COM (Greg Andrews)
Newsgroups: comp.sys.3b1
Subject: Re: 19.2K on a 3b1
Summary: TB+/UUCP = Apples, Other Data Flow = Oranges
Message-ID: <1991Mar27.195615.7929@netcom.COM>
Date: 27 Mar 91 19:56:15 GMT
References: <10499@uwm.edu> <2214@public.BTR.COM> <35907@ditka.Chicago.COM>
Distribution: usa
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
Lines: 43

In article <35907@ditka.Chicago.COM> kls@ditka.Chicago.COM (Karl Swartz) writes:
>In article <2214@public.BTR.COM> thad@public.BTR.COM (Thaddeus P. Floryan) writes:
>>... there's no "standard" software for the 3B1 that
>>will correctly support hardware flow control and 19,200 baud.
>
>>And before you say bullsh*t, please note that I've spent HUNDREDS of hours
>>testing this ...
>
>Duly noted.  And while your pedantic interpretation may well be
>correct, in practice your answer is bullshit.  My 3b1 has spent
>hundreds of hours just this month demonstrating otherwise.
>
>  [bunch 'o' stuff deleted]
>
>If you can't dazzle them with brilliance, baffle them with bullshit,
>eh Thad?  You undoubtedly have provided a lot of help to numerous
>UNIX PC owners, but when I read nonsense like this (unfortunately not
>unique to this occasion) I really have to wonder.
>

Karl, you should be aware that results acquired solely with a TB modem
in uucp spoofing mode would have absolutely no relevance to other types
of data transfer.

The TB+ modems do not rely on just the hardware flow control when they
are spoofing a uucp transfer.  They accomplish flow control by witholding
packet acknowlegements.  In other words, the spoofing masks any problems
caused by a lack of proper hardware flow control.  If your computer is 
receiving, it can do exactly the same thing (withold acks) to prevent the 
modem from overflowing the computer's input buffer.  Matter of fact, one 
well known 386 implementation of SysV Unix turns hardware flow control 
OFF in the computer when uucico starts running - and no trouble results.

My reading of Thad's message was that he's been seeing trouble on other
types of data transfer, not just the uucp transfers you mention.
Therefore your results don't refute his as thoroughly as they would seem to.


-- 
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|  Greg Andrews   |       UUCP: {apple,amdahl,claris}!netcom!gandrews    |
|                 |   Internet: gandrews@netcom.COM                      |
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