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  4: rx pkts=180, bytes=16419, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=121, bytes=10720, drop=?, errs=?, coll=?
  port  9: rx pkts=28, bytes=3390, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=30, bytes=4475, drop=0, errs=0, coll=0
  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 10: rx pkts=3, bytes=270, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=8, bytes=616, drop=0, errs=0, coll=0
