Messages in this thread | | | Date | Wed, 27 Feb 2002 15:27:05 +0100 | From | bert hubert <> | Subject | Re: What is TCPRenoRecoveryFail ? |
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On Wed, Feb 27, 2002 at 01:46:55PM +0000, Bjorn Wesen wrote: > I have a TCP connection that is sending bulk data from a Linux 2.4.17 > machine to a client. At some point, one of the packets from the Linux > machine is lost, so the client asks for a retransmit by acking the last > received correct packet. Then the Linux machine just keeps filling the > clients open window, ignoring that and subsequent retransmit requests, > never retransmitting any data.
Please show a tcpdump -v of this happening, including the initial SYN packets. I strongly suspect something in your network of mucking with TCP options.
> Around the time of the packet loss happened, the counter > TCPRenoRecoveryFail increased by one, but I'm not sufficiently into the > TCP code to figure out why that happens and if that is the reason why > Linux stop retransmitting anything.. any ideas ?
See RFC2001. Might well be related.
Regards,
bert
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