Hi, Sorry previous unit file is not good , below is good unit file ( Added Before=networking.service as noted in bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878757 )
[Unit] Description=Open vSwitch After=network.target openvswitch-nonetwork.service Requires=openvswitch-nonetwork.service Before=networking.service [Service] Type=oneshot ExecStart=/etc/init.d/openvswitch-switch start ExecStop=/etc/init.d/openvswitch-switch stop RemainAfterExit=yes [Install] WantedBy=multi-user.target Thanks, Michal Arbet ( kevko )