363-206-295
Maintenance Description
Issue 1
December 1997
9-41
parameter is exceeded, the DDM-2000 OC-3 Multiplexer generates a TCA to alert
the OS (via the TL1/X.25 interface) to the condition. A summary of all TCAs is
available in the PM TCA summary report. Current quarter-hour and current day
thresholds for each parameter are provisionable, via the CIT, on a per-shelf basis.
Therefore, if values other than the defaults are to be used, only one value needs
to be set for each parameter. Generation of TCAs can be disabled independently
for each performance parameter. Performance data is still collected if thresholding
is disabled. Refer to the
rtrv-pmthres-line
,
rtrv-pmthres-sect
,
rtrv-
pmthres-sts1
,
rtrv-pmthres-t3, set-pmthres-line
,
set-pmthres-
sect
,
set-pmthres-sts1
,
set-pmthres-t3
, and
rtrv-pm-tca
commands
in Section 11, "Commands and Reports."
TCA Transmission to OS
9
To trigger proactive maintenance activity at the OS, the DDM-2000 OC-12
Multiplexer TL1/X.25 interface is used. Threshold crossing alerts (TCAs) are
reported to the OS via
REPT EVT
messages.
Performance Monitoring Reports
9
TCA Summary Report
9
The TCA summary report lists the number of threshold crossings within the last 8
hours for quarter-hour thresholds and the number of threshold crossings for the
current and previous day for daily thresholds. This snapshot provides an overall
view of system performance. If there are TCAs identified, it identifies which
performance status report to look at for a detailed view of those parameters. See
the
rtrv-pm-tca
command in Section 11, "Commands and Reports."
Performance Status Reports
9
The system provides reports that contain a snapshot of all current and previous
PM registers. The time registers were last reinitialized is included. The option to
display a specified subset of parameters (for example, line parameters only, data
for only one OC-3 line or DS3 port, etc.) is also provided. See the
rtrv-pm-
sect
,
rtrv-pm-line
,
rtrv-pm-sts1
, and
rtrv-pm-t3
commands in
Section 11, "Commands and Reports."