OFPST_PORT reply (xid=0x2): 3 ports
  port  1: rx pkts=5961, bytes=393426, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=3248, bytes=214368, drop=?, errs=?, coll=?
  port  2: rx pkts=3238, bytes=213708, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=3244, bytes=214104, drop=?, errs=?, coll=?
  port LOCAL: rx pkts=6492, bytes=428472, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
