OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-38ab03-0): addr:8e:4c:0d:35:a3:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-49146e-0): addr:86:1d:7b:64:60:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-ee0899-0): addr:8e:23:8a:d2:93:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8a:cd:4e:b3:17:e6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
