OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f42526-0): addr:9a:b1:11:82:ca:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-620497-0): addr:46:a3:2c:ea:a6:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e2:fe:a3:80:fd:ea
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
