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
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/ openvswitch- switch. openvswitch- nonetwork. service: LimitNOFILE= 1048576
./debian/changelog: * Bump nofiles to 1048576 for ovs daemons (LP: #1737866).
./debian/
root@16.04:~$ grep -r '1048576' /lib/systemd/ system/ openvswitch* system/ openvswitch- nonetwork. service: LimitNOFILE= 1048576
/lib/systemd/
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