>-----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 
*********************************************
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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