OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bd937a-0): addr:fe:c2:06:36:92:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6fe0b9-0): addr:aa:ab:91:5e:1a:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-c519c3-0): addr:be:b4:f4:2c:6f:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:33:47:a7:d4:19
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
