Xref: utzoo comp.dcom.modems:7653 comp.sys.mac.comm:1904
Path: utzoo!attcan!uunet!samsung!sol.ctr.columbia.edu!lll-winken!ncis.tis.llnl.gov!blackbird!lriggins
From: lriggins@blackbird.afit.af.mil (L. Maurice Riggins)
Newsgroups: comp.dcom.modems,comp.sys.mac.comm
Subject: Re: How to increase throughput on 9600 bps modem?
Message-ID: <1813@blackbird.afit.af.mil>
Date: 13 Dec 90 12:35:52 GMT
References: <9PF^W}#@ads.com>
Organization: Air Force Institute of Technology; WPAFB, OH
Lines: 31

In article <9PF^W}#@ads.com> jtn@ADS.COM (John T. Nelson) writes:

>Here's another fun bit of info.  Transfers from the remote machine TO
>my Mac are FAST!  Always.  Binary and ascii data crank at 98 percent
>effeciency all the time.  Now why in the world would reception be
>faster than transmission?

>At least it works.  I disable ALL flow control and use the latest copy
>of "rz" from mpace.cs.purude.edu (I think that's the place) and use
>the full 8 bit data path.

I experience the same thing here.  But with the bsd system, I have to call
sz with -w 8194 and ZNULLS set to 124 (for my SE) to get sz to work.  Not
may retransmissions (if any) on upload or download.  Do have stty -tandem
set also.

I'm using White Knight with a Practical Peripherals PM9600SA going into a
UDS 9600 (MNP only) which feeds a TRW ACU (with hardware handshake) going
through Ethernet to the Vax.

Any clues (other than the Vax buffers can't handle it)?

Thanks,



-- 
Maurice      INTERNET:    lriggins@blackbird.afit.af.mil (129.92.1.2)

      Opinions expressed here do not reflect those of my employer nor
      constitute an official position of any U.S.Government agency.