OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-adbb84-0): addr:96:5e:c2:4e:ff:3f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7f3311-0): addr:fe:7c:1f:62:9d:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:2a:17:ed:4b:eb
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
