Le Sat, 22 Oct 2016 18:12:37 +0200,
Federico Giannici <giann...@neomedia.it> a écrit :

> We have a firewall with OpenBSD 6.0 amd64 that handles about 1.5 Gbps
> of traffic.
> 
> I noticed that from a few weeks the number of states is increased
> from around 250.000 to almost 2 millions (no change in PF config)!
> 
> At the same time the firewall started loosing a few packets (around 
> 1-2%, with peeks of 4%). Maybe this is due to too many states to
> handle?

Hard to tell for the number of states but you have some PF congestions,
which is bad.

Did you try to augment the sysctl net.inet.ip.ifq.maxlen ?
In my previous setup that helped a bit against congestion
(net.inet.ip.ifq.maxlen=2048).

Regards,

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