I have verified openvswitch-switch=2.5.5-0ubuntu0.16.04.1, it looks good to me.
root@16.04:/tmp/ovs/openvswitch-2.5.5$ grep -r '1048576' ./debian/ ./debian/changelog: * Bump nofiles to 1048576 for ovs daemons (LP: #1737866). ./debian/openvswitch-switch.openvswitch-nonetwork.service:LimitNOFILE=1048576 root@16.04:~$ grep -r '1048576' /lib/systemd/system/openvswitch* /lib/systemd/system/openvswitch-nonetwork.service:LimitNOFILE=1048576 root@node1:~# grep -r '1048576' /proc/`pidof ovsdb-server`/limits Max open files 1048576 1048576 files root@node1:~# grep -r '1048576' /proc/`pidof ovs-vswitchd`/limits Max open files 1048576 1048576 files -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1737866 Title: Too many open files when large number of routers on a host To manage notifications about this bug go to: https://bugs.launchpad.net/charm-neutron-openvswitch/+bug/1737866/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs