Re: network outages

[Thomas Klausner <wiz%netbsd.org@localhost>]

On Fri, Mar 20, 2026 at 07:26:54PM +0100, Thomas Klausner wrote:
> I remembered that I had also changed some sysctl settings after a
> recent posting about network speed
> (https://omaera.org/wlog/tech/bsd_network_p2 ).
> 
> Could this be the reason?
> 
> I've reverted them locally and the machine has been accessible for
> more than 10 minutes... so far.
>  Thomas
> 
> -net.inet.tcp.recvspace=262144
> -net.inet.tcp.sendspace=262144
> +net.inet.tcp.recvspace=4194384
> +net.inet.tcp.sendspace=4194384
> +net.inet.tcp.recvbuf_auto=1
> +net.inet.tcp.sendbuf_auto=1
> +net.inet.tcp.recvbuf_inc=262144
> +net.inet.tcp.sendbuf_inc=262144
> +net.inet.tcp.congctl.selected=cubic
> 

Indeed, reverting these changes made it go away.
- was before and now, without the problems
+ caused the problems
 Thomas