Subject: Re: TCP limited transmit
To: venkat venkatsubra <firstname.lastname@example.org>
From: Mark Allman <email@example.com>
Date: 11/30/2000 11:18:24
> Let me know if you find any difference.
OK. I am mainly uncomfortable because we're depending on some other
bookkeeping being done right, I think. If we keep a state variable
specifically for this purpose we don't have to worry about someone
screwing us up later by making a tweak somewhere else. But, I'm
> Also, i prefer the bumping the cwnd up, calling tcp_output and
> then restoring it back method because it avoids adding code in
> tcp_output that would be executed for every outgoing packet if i
> understood it correctly.
Ah, nice point. I'd love to hear other's opinions.
> This would work well unless the reason for less than four packet
> cwnd is the arrival of a ICMP source quench just before the Fast
> Retransmit. In which case the cwnd is reset to 1 segment.
SQs are fairly rare. I think the *heuristic* I suggested would
still work OK.
> Yes, i thought a counter that can be displayed through 'netstat
> -s' could be useful.