AT_CHECK([cat ovs-vswitchd.log | sed -e '/^.*ofproto_dpif_monitor.*$/d' > ovs-vswitchd.log])
# enable both bfd and cfm on p0.
AT_CHECK([ovs-vsctl set interface p0 bfd:enable=true cfm_mpid=10])
# check log.
AT_CHECK([cat ovs-vswitchd.log | sed -e '/^.*ofproto_dpif_monitor.*$/d' > ovs-vswitchd.log])
# enable both bfd and cfm on p0.
AT_CHECK([ovs-vsctl set interface p0 bfd:enable=true cfm_mpid=10])
# check log.