> I need to run some experiments / simulations with TCP/IP in a LEO
> Satellite environment. My special interest is on how the different
> TCP flavors behave in the context of time-varying round trip
> delays.
> 
> I am planing to use the NS Network Simulator (ns2) for my trials
> and would like to ask if any of you has a suggestion about other
> simulator I should considder or (even better) has a pointer to
> previous work by some one else.
A flog...  Picking a simulator or testing method is often a complex
question.  Aaron Falk and I offer up some things to think about when
picking a software simulator in the following paper...
    Mark Allman, Aaron Falk. On the Effective Evaluation of TCP. ACM
    Computer Communication Review, 29(5), October 1999. 
    http://roland.grc.nasa.gov/~mallman/papers/tcp-evaluation.ps
Enjoy!
allman
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