OVS_WAIT_UNTIL([ovs-appctl -t ovs-ofctl exit])
AT_CHECK([cat ofctl_monitor.log], [0], [dnl
NXT_PACKET_IN (xid=0x0): cookie=0x1 total_len=98 in_port=1 (via action) data_len=98 (unbuffered)
OVS_WAIT_UNTIL([ovs-appctl -t ovs-ofctl exit])
AT_CHECK([cat ofctl_monitor.log], [0], [dnl
NXT_PACKET_IN (xid=0x0): cookie=0x1 total_len=98 in_port=1 (via action) data_len=98 (unbuffered)