OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3f87bd-0): addr:9e:72:9d:eb:1b:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b286dc-0): addr:aa:1c:c0:81:e3:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-c177f9-0): addr:f2:c9:ec:ae:39:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:a0:43:1f:0b:f8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
