Date: Mon, 22 May 2006 19:51:33 +0800 From: mag@intron.ac To: freebsd-net@freebsd.org Subject: How to Quicken TCP Re-transmission? Message-ID: <20060522115722.15918F1590@smtp.263.net>
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Hi,
I want to transmit data between host A and host B. The link between
these two hosts is really bad: PING reports 30% packet loss and about
60 ms return delay. This means if timed out for 1 second, the data must
have been lost.
I keep "net.inet.tcp.rexmit_min" and "net.inet.tcp.rexmit_slop"
untouched. But TCPDUMP tells me that if some data are lost,
re-transmission will be done 64 seconds after last transmission!
How to quicken TCP re-transmission?
How to tune "net.inet.tcp.rexmit_min" and "net.inet.tcp.rexmit_slop"?
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From Beijing, China
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