OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bdf43e-0): addr:56:de:d8:4e:1e:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fba389-0): addr:52:28:82:5c:56:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:18:70:f4:51:ad
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
