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tp4: question on cwnd (page 10), if you can not solve it how to go on with tp

we give you a lot of hints for this question (see blog), but if still you can not find what limits cwnd at value 91 (or 92), in order to do the rest of the tp successfully you can just assume for this question that:

- cwnd is limited by value 91 (or 92) and can not go above this value even if congestion control mechanisms and very small losses or no-losses would let cwnd goes above this value
-RTT is not cause for cwnd limitation, but RTT is a consequence - in experiment 1 and 2! In experiment 4 it will not be like this!

Also be aware (we already told this to you) that in this tp system and experiments main RTT component comes from queuing, other components are almost negligable.
Posted by Slavisa Sarafijanovic on Friday 2 February 2007 at 8:30