OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-38ab03-0): addr:ca:1a:3f:26:1b:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a1a60c-0): addr:2a:77:f5:c4:20:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-ee0899-0): addr:d6:2a:f3:e7:c2:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:a6:bc:a8:65:20
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
