363-206-305
Maintenance Description
Issue 3 June 2000
9-37
ES-L Errored Seconds
9
This parameter is a count of seconds containing one or more BPVs, or one or
more LOS (from the DSX-3) defects.
SES-L Severely Errored Seconds
9
This parameter is a count of seconds during which BPVs exceed 44 or one or
more LOS defects occur.
DS1 Line Parameters
9
ES-L Errored Seconds
9
This parameter is a count of seconds containing one or more bipolar violations (for
both AMI and B8ZS types of coding), or one or more loss of signal defects from
the DSX-1.
Performance Monitoring Data Storage and
Reports
9
The DDM-2000 FiberReach Multiplexer can initialize the current registers through
the CIT locally or remotely at any time, as well as report the contents of any
register at any time. Refer to the
init-pm
,
rtrv-pm-line
,
rtrv-pm-sect
,
rtrv-pm-sts1
,
rtrv-pm-t1
,
rtrv-pm-t3
and
rtrv-pm-tca
commands in
Chapter 11, "Commands and Reports."
Performance Monitoring During Failed
Conditions
9
When the DDM-2000 FiberReach Multiplexer detects a trouble condition, the
system stops accumulating affected performance parameters. Parameters that
continue to provide useful information are accumulated during the trouble
condition.
Performance Parameter Thresholds
9
The DDM-2000 FiberReach Multiplexer provides performance thresholds to alert
maintenance staff of degraded transmission. Whenever the threshold for a
parameter is exceeded, the DDM-2000 FiberReach Multiplexer generates a
threshold-crossing alert (TCA) to alert the OS (via the TL1 interface) to the
condition. A summary of all TCAs is available in the performance monitoring TCA
summary report. Current quarter-hour and current day thresholds for each
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