OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5b2e3b-0): addr:f2:2c:46:b2:ff:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-50cb53-0): addr:7e:6f:82:9f:2b:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:39:a1:08:b8:19
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
