OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8ded69-0): addr:26:71:f4:a1:6d:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6cf645-0): addr:ea:87:62:d2:66:32
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7e:22:fe:48:85:40
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
