OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-02c401-0): addr:c2:e3:73:7d:c4:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-034e03-0): addr:52:c1:a1:55:56:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:eb:a0:78:b5:bb
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
