Hello!
> The interesting thing is that there isn't any evidence of packet loss.
Why did you disable bith sacks and timestamps? Exactly to get
maximal damage from long delay link?
> Is there some /proc/sys setting to fix this, a kernel patch, or is it
> perhaps fixed in a newer kernel already?
No patches to block send required ACKs exist of course. :-)
All the problem is at sender, it mispredicts rtt.
What OS is sender? If it is linux too, try to use default configuration
not playing with /proc/sys/net/tcp_*, especially with timestamps
and sacks and the situation should rectify.
Also, please, send full (binary!) tcpdump from SYN and to FIN.
Andi says right thing, but I am still puzzled why rtt is miscalculated
it should be estimated correctly.
Well, and if sender is not linux... no ideas.
Alexey
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This archive was generated by hypermail 2b29 : Fri Sep 07 2001 - 21:00:12 EST