OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-924940-0): addr:7a:44:1b:1e:72:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-67fe0b-0): addr:76:5e:2b:4d:84:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-2d917a-0): addr:06:e9:27:54:04:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:77:a8:2b:a5:a5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
