OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7f404a-0): addr:7e:f3:70:80:70:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f0bd48-0): addr:76:95:53:71:88:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-ce4b29-0): addr:aa:0c:4e:41:44:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:19:70:ef:f8:30
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
