Hi, another mysterious problem on our Artesyn Maxcore box: It looks like when during the initial come up of the controller-0 the execution of the command (as seen on the console output) ovs-vsctl set Open_vSwitch . other_config:dpdk-init=true seems to do some nasty things with the interface. The command just hangs forever and after a reboot, probably because of the watchdog the interface is dead: [ 14.880565] igb 0000:07:00.3: The NVM Checksum Is Not Valid [ 14.933308] igb: probe of 0000:07:00.3 failed with error -5 Maye be someone can shed some light what is going on in this step. Thanks Marcel