Appendix B: Performance Monitor
129
November 2001
The remaining performance monitor data is available whether CRC-4
is enabled or not.
Current errored seconds (ES)
An errored second is any second containing one or more CRC error
events, or one or more controlled slip events. The data is collected for the
current 15-minute interval.
Current unavailable seconds (UAS)
An unavailable second is any second in which a failed signal state exists..
The data is collected for the current 15-minute interval.
Long-term errored seconds (LONG ES)
The total number of ES in the current powered-up interval.
Long-term fail seconds (LONG UAS)
The total number of UAS in the current powered-up interval.
Current seconds (CURR SEC)
The number of seconds in the current measurement interval. A
measurement interval has 900 seconds (15 minutes).
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