lkml.org 
[lkml]   [2002]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: What is TCPRenoRecoveryFail ?
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

--
http://www.PowerDNS.com Versatile DNS Software & Services
http://www.tk the dot in .tk
http://lartc.org Linux Advanced Routing & Traffic Control HOWTO
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.102 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site