Subject: Re: [PATCH] make _minimum_ TCP retransmission timeout configurable

From: Eric Dumazet <[email-masked]>
Date: Wed, 29 Aug 2007 23:13:53 +0200

Rick Jones a écrit :
> Enable configuration of the minimum TCP Retransmission Timeout via
> a new sysctl "tcp_rto_min" to help those who's networks (eg cellular)
> have quite variable RTTs avoid spurrious RTOs.
> 
> Signed-off-by: Rick Jones <[email-masked]>
> Signed-off-by: Lamont Jones <[email-masked]>
> ---
> 
> diff -r 1559df81a153 include/linux/sysctl.h
> --- a/include/linux/sysctl.h	Mon Aug 13 05:00:33 2007 +0000
> +++ b/include/linux/sysctl.h	Wed Aug 22 10:42:55 2007 -0700
> @@ -441,6 +441,7 @@ enum
>  	NET_TCP_ALLOWED_CONG_CONTROL=123,
>  	NET_TCP_MAX_SSTHRESH=124,
>  	NET_TCP_FRTO_RESPONSE=125,
> +	NET_TCP_RTO_MIN=126,
>  };
>  
>  enum {

I am sure you can use CTL_UNNUMBERED instead of adding yet another sysctl 
value, as advised in include/linux/sysctl.h

**  For new interfaces unless you really need a binary number
**  please use CTL_UNNUMBERED.

Thank you