OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b903c1-0): addr:b2:c3:92:5b:23:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a2:9f:8e:85:7f:67
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
