RE: tcp enhancement

From: William D Ivancic ([email protected])
Date: Mon Jul 26 1999 - 08:37:57 EDT


>-----Message d'origine-----
>De: ketan bajaj [SMTP:[email protected]]
>Date: vendredi 23 juillet 1999 09:12
>�: [email protected]
>Cc: [email protected]
>Objet: RE: making satellite channel loss transparent
>.....What i'm trying to say is why not attack the real problem. The root
>cause for tcp's poor performace over satellite channels is that it fast
>retransmits on receiving 3 duplicate acks (reducing its window), and as
>the delay*bandwidth product over a satellite channel is large, the no. of
>data packets in the end-to-end pipe are large, so a loss due to corruption,
>results in a number of duplicates acks being generated, moving the
>sender tcp to fast retranmission, and thus poor performance.
>
>ketan

We can always engineer the optimum solution for a particular problem.
However, TCP is a compromise that works in nearly all environments and
works very well in many of those environments. Proposing a solution that
works well for Satellites at the expense of most other environments such as
LANs may not be the best way to proceed.

Will Ivancic
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William D. Ivancic
NASA Glenn Research Center
21000 Brookpark Rd. MS 54-8
Cleveland, Ohio 44135
USA
Phone: 1 216 433 3494
FAX: 1 216 433 8705
Email: [email protected]
             [email protected]
http://ctd.grc.nasa.gov/5610/5610.html
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