OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9be641-0): addr:7e:16:3b:dc:84:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-17e7b0-0): addr:7e:fd:3e:89:b4:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:e5:1d:92:75:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
