Messages in this thread | | | Date | Fri, 16 Jul 2004 12:21:32 +0200 | From | Maciej Soltysiak <> | Subject | Re[2]: tcp_window_scaling degrades performance |
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AK> It's pretty easy for you to find out. Do a tcpdump -v or ethereal -v AK> from both the side of a host you download from and from the linux side. AK> Then compare all packets. If they don't match the firewall is AK> doing something bad. Especially check window values and TCP options AK> in the SYN packets I will do that for sure, but preliminary investigation shows that this behaviour does not show with 2.6.7 and earlier, but appears for sure in 2.6.7-bk13 (Haven't tried earlier bk snapshots)
AK> It is very very likely the firewall, window scaling works for a lot AK> of people. It is probable, but here: only 2.6.7+ machines behave like this. I also noticed, that turning tcp_window_scaling off does not always fix the problem, turning tcp_bic to 0 too helps even more.
Regards, Maciej
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