Alcatel-Lucent 1643 AMS - Data Storage and Recovery

Data Storage and Recovery
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Measurement periods
Measurement Parameters data is accumulated over a so called measurement period.
Three measurement periods are available:
• 15 minutes unidirectional
• 24 hours unidirectional
• 24 hours bidirectional
Bins
Performance monitoring data is stored in
• current PM bins
A bin contains performance data information for each termination point such as:
• Timestamp;
• Elapsed time;
• Suspect indication which is a data flag to indicate that the data stored in the bin is
incomplete or invalid.
The table below lists the available bins:
Direction Number of 15 minutes
Bins
Number 24 hours Bins
Uni-directional Current 1 1
Uni-directional recent 16 1
Bi-directional current 0 1
Bi-directional history 0 1
The uni-directional and bi-directional 24 hours bins store performance data over a span
of a current 24 hours period. At the end of the current 24 hours period, the data is
time-stamped and sent to the 24 hours recent bin, and the current 24 hours bin is reset
to zero.
The uni-directional 15 minutes bins accumulates performance data over a span of 15
minutes periods. At the end of a current 15 minutes period, the data is time-stamped
and transferred to the first of the fifteen available 15–minutes recent bins. When all the
fifteen minutes history bins are full, the eldest history bin is overwritten by the new
information to be transferred.
Interval (Bin) suppression
In the event that the current bin data is all zero and that the system indicator is not set,
while the
actuall number of consecutive suppressed intervals is lower than the
maximum number of consecutive suppressed intervals, then the current interval can be
Performance monitoring
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365-312-807R7.2
Issue 4, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
10-37