Value BFD_TOTAL (\d+)
Value BFD_UP (\d+)
Value BFD_MAX (\d+)
Value BFD_FLAP (\d+)

Start
  ^\s*sessions-total\s*${BFD_TOTAL}
  ^\s*sessions-up\s*${BFD_UP}
  ^\s*sessions-max\s*${BFD_MAX}
  ^\s*sessions-flap\s*${BFD_FLAP} -> Record
  ^\s*poll-interval
  ^\s*$$
  ^. -> Error