> Anyone has any pointers to info/measurements regarding noticeable
> performance issues with/without TCP time-stamping or any
> deployment issues? specifically, I am interested in any clear
> negative, positive or 'no effect' results regarding its use in the
> Internet, satellite or wireless/ad-hoc.
Vern Paxson and I found that using timestamps with the current RTO
algorithm doesn't really buy you much. See:
Mark Allman, Vern Paxson. On Estimating End-to-End Network Path
Properties. ACM SIGCOMM, September 1999.
http://roland.grc.nasa.gov/~mallman/papers/estimation.ps
(However, note that timestamps are needed for PAWS if your sending
rate is quite high.)
As for deployment, I have some measurements on the use of timestamps
"in the wild" in the following paper:
Mark Allman. A Web Server's View of the Transport Layer. ACM
Computer Communication Review, 30(5), October 2000.
http://roland.grc.nasa.gov/~mallman/papers/webobs-ccr.ps
allman
--- Mark Allman -- BBN/NASA GRC -- http://roland.grc.nasa.gov/~mallman/
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