Value INTERFACE (\S+)
Value RX_SUCCESS (\S+)
Value RX_FAILURE (\S+)
Value TX_SUCCESS (\S+)
Value TX_FAILURE (\S+)

Start
  ^Interface.*Failure -> Data

Data
  ^${INTERFACE}\s+${RX_SUCCESS}\s+${RX_FAILURE}\s+${TX_SUCCESS}\s+${TX_FAILURE} -> Record
  ^\s+$$
  ^$$
  ^.* -> Error "LINE NOT FOUND"
  
EOF  
