OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-1335e1-0): addr:22:04:47:3d:a3:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0e1be5-0): addr:f2:d1:2d:34:ba:29
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fe:96:6a:37:c7:80
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
