re: conntrack - I think the udp standard for holding a hole punch open is 2-3 minutes. I've seen 30 sec or less in the field.
On Thu, Sep 6, 2018 at 11:36 AM Pete Heist <p...@heistp.net> wrote: > > > > On Sep 6, 2018, at 7:22 PM, Dave Taht <dave.t...@gmail.com> wrote: > > > > There was a very good paper or two (I think luca co-authored one) that > > showed that "active flows" were generally measured in the mid 200s in > > nearly any scenario. I agreed with that which was in part why I felt > > we could stick > > with 1024 queues, a direct mapped hash, and a couple collisions. > > So I’m not sure if this is a great way to gauge active flow counts through a > router, but at 8pm: > > root@FreeNetVysina:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l > 446 > FreeNetJerab:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l > 181 > FreeNetOldrichova:~# grep ESTABLISHED /proc/net/ip_conntrack | wc -l > 228 > > Far from my estimate of tens. Many of those can be idle connections, I > suspect. 60-80% of them are http/s. > -- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake
