[Ns-bugs] [Bug 1039] TCP Nagle algorithm and RTO calculation
code at nsnam.ece.gatech.edu
Wed Mar 16 21:52:28 PDT 2011
--- Comment #7 from Tom Henderson <tomh at tomh.org> 2011-03-17 00:52:28 EDT ---
(In reply to comment #2)
> Created attachment 1043 [details]
> Increase min RTO and use Nagle's algorithm
> Ok, this is a pretty simple patch. For the RTO stuff, I just modified the min
> RTO value in rtt-estimator. After looking at the logs in
> routing-aodv-regression, it seems like this takes care of it.
> For Nagle's algorithm, I decided to put the logic in SendPendingData. Two
> thoughts: 1) Is it ok to have DelAck default to 2 while using Nagle's
> algorithm? I have some memory of delack and Nagle's algorithm not working well
Wikipedia describes this interaction:
So does Stuart Cheshire:
I think setting DelAck to 2 would be the right default, however.
> Finally, I could add a BooleanValue attribute to tcp-socket to
> enable/disable Nagle's algorithm. Would we like to be able to do that?
Yes, but I would slightly prefer naming this TcpNoDelay to match the
implementations (TcpNoDelay defaults to false).
The logic seems correct in the patch. Any chance for a test case or example
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