OFPST_PORT reply (xid=0x2): 5 ports
  port  1: rx pkts=0, bytes=0, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=0, bytes=0, drop=?, errs=?, coll=?
  port  2: rx pkts=26, bytes=2524, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=30, bytes=2730, drop=0, errs=0, coll=0
  port  4: rx pkts=615, bytes=90236, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=541, bytes=80182, drop=?, errs=?, coll=?
  port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
  port  3: rx pkts=16, bytes=864, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=8, bytes=832, drop=0, errs=0, coll=0
