OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-755ad2-0): addr:6e:4c:34:a3:30:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-479f96-0): addr:0a:f6:7c:3c:96:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-a63f2f-0): addr:8a:18:af:fc:b7:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:89:35:3f:f0:b0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
