Value Required INTERFACE (\d/\d\/\d)
Value LINK_STATUS (down|up)
Value AIS_STATE (\w+)
Value LOS_STATE (\w+)
Value LOF_STATE (\w+)
Value FRAMING (\w+)
Value LINE_CODE (\w+)
Value CLOCK_SOURCE ([a-zA-Z0-9\s]+)
Value CURR_INTERVAL_ELAPSED_SECONDS (\d+)
Value CURR_LINE_CODE_VIOLATIONS (\d+)
Value CURR_PATH_CODE_VIOLATIONS (\d+)
Value CURR_SLIP_SECS (\d+)
Value CURR_FR_LOSS_SECS (\d+)
Value CURR_LINE_ERR_SECS (\d+)
Value CURR_DEGRADED_MINS (\d+)
Value CURR_ERR_SECS (\d+)
Value CURR_BURSTY_ERR_SECS (\d+)
Value CURR_SEV_ERR_SECS (\d+)
Value CURR_UNAVAIL_SECS (\d+)
Value TOTAL_LINE_CODE_VIOLATIONS (\d+)
Value TOTAL_PATH_CODE_VIOLATIONS (\d+)
Value TOTAL_SLIP_SECS (\d+)
Value TOTAL_FR_LOSS_SECS (\d+)
Value TOTAL_LINE_ERR_SECS (\d+)
Value TOTAL_DEGRADED_MINS (\d+)
Value TOTAL_ERR_SECS (\d+)
Value TOTAL_BURSTY_ERR_SECS (\d+)
Value TOTAL_SEV_ERR_SECS (\d+)
Value TOTAL_UNAVAIL_SECS (\d+)

Start 
  ^T1\s${INTERFACE}\sis\s${LINK_STATUS}\.
  ^\s+AIS\sState:${AIS_STATE}\s+LOS\sState:${LOS_STATE}\s+LOF\sState:${LOF_STATE}
  ^\s+Framing\sis\s${FRAMING},\sLine\sCode\sis\s${LINE_CODE},\sClock\sSource\sis\s${CLOCK_SOURCE}. 
  ^\s+Data\sin\scurrent\sinterval\s\(${CURR_INTERVAL_ELAPSED_SECONDS}\sseconds\selapsed\): -> ParseCurrentCounters
  # Capture time-stamp if vty line has command time-stamping turned on
  ^Load\s+for\s+
  ^Time\s+source\s+is

ParseCurrentCounters
  ^\s+${CURR_LINE_CODE_VIOLATIONS}\sLine\sCode\sViolations,\s${CURR_PATH_CODE_VIOLATIONS}\sPath\sCode\sViolations
  ^\s+${CURR_SLIP_SECS}\sSlip\sSecs,\s${CURR_FR_LOSS_SECS}\sFr\sLoss\sSecs,\s${CURR_LINE_ERR_SECS}\sLine\sErr\sSecs,\s${CURR_DEGRADED_MINS}\sDegraded\sMins
  ^\s+${CURR_ERR_SECS}\sErrored\sSecs,\s${CURR_BURSTY_ERR_SECS}\sBursty\sErr\sSecs,\s${CURR_SEV_ERR_SECS}\sSeverely\sErr\sSecs,\s${CURR_UNAVAIL_SECS}\sUnavail\sSecs
  ^\s+Total Data.+ -> ParseTotalCounters

ParseTotalCounters
  ^\s+${TOTAL_LINE_CODE_VIOLATIONS}\sLine\sCode\sViolations,\s${TOTAL_PATH_CODE_VIOLATIONS}\sPath\sCode\sViolations,
  ^\s+${TOTAL_SLIP_SECS}\sSlip\sSecs,\s${TOTAL_FR_LOSS_SECS}\sFr\sLoss\sSecs,\s${TOTAL_LINE_ERR_SECS}\sLine\sErr\sSecs,\s${TOTAL_DEGRADED_MINS}\sDegraded\sMins,
  ^\s+${TOTAL_ERR_SECS}\sErrored\sSecs,\s${TOTAL_BURSTY_ERR_SECS}\sBursty\sErr\sSecs,\s${TOTAL_SEV_ERR_SECS}\sSeverely\sErr\sSecs,\s${TOTAL_UNAVAIL_SECS}\sUnavail\sSecs -> Record Start