C. Charalambous wrote...
>ACTS console(NMT)} then TCP Reno couldn't handle it; thus thruput
>obtained was really low. Obviously, more than one segments were lost in a
>window (setup at 10MB with setsockopt) of data sent and therefore TCP Reno
>fast retransmit was triggered several times in a RTT which resulted either
>in sl>ACTS console(NMT)} then TCP Reno couldn't handle it; thus thruput
>obtained was really low. Obviously, more than one segments were lost in a
>window (setup at 10MB with setsockopt) of data sent and therefore TCP Reno
>fast retransmit was triggered several times in a RTT which resulted either
>in slow start or fast recovery on a really low ssthresh. With a script we
>wrote, where it captures the TCP retransmissions
>TCP stack, you could see retransmissions occur in bursts.
>Therefore, I believe having a TCP SACK implementation, which can
>retransmit those packets lost, in one RTT, it will improve performance
>with that BER on the satellite link
You may want to look at my thesis, it discusses much of what you
mention below for implemetations of Reno, SACK, FACK, and a version
of New Reno based on the implementation in ns, the LBL simulator.
My thesis is located at
http://ace.cs.ohiou.edu/~chayes
If you have any problems retrieving it, please write me at
[email protected] start or fast recovery on a really low ssthresh. With a script we
>wrote, where it captures the TCP retransmissions
>TCP stack, you could see retransmissions occur in bursts.
>Therefore, I believe having a TCP SACK implementation, which can
>retransmit those packets lost, in one RTT, it will improve performance
>with that BER on the satellite link
You may want to look at my thesis, it discusses much of what you
mention below for implemetations of Reno, SACK, FACK, and a version
of New Reno based on the implementation in ns, the LBL simulator.
My thesis is located at
http://ace.cs.ohiou.edu/~chayes
If you have any problems retrieving it, please write me at
[email protected].
Thanks
Chris Hayes
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