OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ff5131-0): addr:5a:1b:cf:fd:29:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 14(tap00cd0913-0a): addr:fe:16:3e:94:08:4b
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 15(tapaa0dcae9-f0): addr:3a:57:b6:ae:56:bc
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 16(patch-br-int-to): addr:46:cc:02:93:42:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 17(tap7514447c-f6): addr:fe:16:3e:34:24:0f
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 18(tap7799c1f7-b0): addr:22:dd:c7:1f:29:9d
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 19(tapca0eba72-b2): addr:fe:16:3e:c6:fb:1b
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 20(tapd75dadf4-b0): addr:92:8c:f3:23:e7:e4
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:1c:f8:40:0b:d0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
