Re: tcp over lossy link

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Stuart Adams wrote:


I am running tcp over a point-to-point lossy link and there can be long delays in some cases due to TCP backoff after a prticular sequence of lost packets.

 Are there any parameters I can tweak to make
 TCP deal better with a lossy link ???

BIC tcp seems to be more robust in face of loss. It is enabled by default on 2.6 and is available in recent versions of 2.4 (see sysctl net.ipv4.tcp_bic)

 (Its a dedicated link with lots of bandwidth so
  I'd rather just have no backoff at all)

Don't go there.


Thanks, Stuart



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