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  9. From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
  10. Newsgroups: comp.protocols.kermit.misc
  11. Subject: Re: Thumb rule
  12. Date: 23 Jul 1997 19:54:47 GMT
  13. Organization: Columbia University
  14. Lines: 15
  15. Message-ID: <5r5ni7$sbd$1@apakabar.cc.columbia.edu>
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  18. Xref: news.columbia.edu comp.protocols.kermit.misc:7379
  19.  
  20. In article <TCPSMTP.17.7.21.1.35.48.2375661496.4569062@kincyb.com>,
  21.  <dallasii@kincyb.com> wrote:
  22. : On a PC hardware newsgroup recently, someone recommended at
  23. : thumbrule of having a PC to modem speed of 4 times the 
  24. : modem to modem connection speed for optimum 'throughput'
  25. : for the session.
  26. : 
  27. : Any comments on this?
  28. : 
  29. This is to allow modem-to-modem compression to be effective, since the
  30. claim is that V.42bis compression as implemented in (say) V.34 modems,
  31. typically compresses non-precompressed data by a factor of four.  Take with
  32. grain of salt.
  33.  
  34. - Frank