[freenet-dev] [freenet-cvs] r11679 - in trunk/apps/load-balancing-sims/phase7/sim: . clients messages

Michael Rogers m.rogers at cs.ucl.ac.uk
Mon Feb 12 11:51:15 UTC 2007


Matthew Toseland wrote:
>> TCP fast retransmits 1 when 2,3,4 have been acked, without considering 
>> the RTT. The simulator code also checks that 1 was last sent 
>> 1.5*RTT+MAX_DELAY seconds ago, but this is just to prevent 1 from being 
>> retransmitted again when 5 is acked.
> 
> Okay so TCP has a cooldown instead? Won't resend a given packet more
> often than once per RTT?

I'm not sure - I believe TCP only fast retransmits each packet once, so 
subsequent retransmissions would be due to timeouts (checked every 500ms).

Cheers,
Michael



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