OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-901ac9-0): addr:da:cf:b4:fa:9f:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0e:27:dc:4e:10:c0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
