Upon a request, I made two experiments to compare the TCP SACK behaviors when Limited Transmit is on and off.
I put the new results at http://www.demizu.org/~noritosi/memo/2005/0320/ 1. In the first RTT of the recovery mode, FreeBSD stable sends one data segment for each duplicate ACK segment. As a result, the outstanding window size may not be halved while a loss is detected. 2. FreeBSD stable retransmits data upon the arrival of the first SACK block higher than the data. As a result, FreeBSD stable would retransmit data segments unnecessarily when data segments are reordered. 3. FreeBSD stable seems not to retransmit data higher than snd_recover even if the data can be infered as lost. Any comments are welcome. Thank you. Regards, Noritoshi Demizu _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
