Maintenance
Page 111 of 150
Mini-Carrier Remote
Description, Installation, and Maintenance
Procedure 2
Checking the carrier performance status
The Remote Mini-Carrier Interface card can display carrier performance
information for the current hour and for the last 24 hours. The data and total
errors are shown separately in the report for both the local and the remote site.
The report displays the bit error rate, loss of frame count, loss of signal, alarm
indication count, and frame slip count. To obtain the information for the current
hour, execute the
DISPLAY PERFORMANCE (D P)
command for near
end or the
DISPLAY PERFORMANCE DISTANT (D P D)
command for
the distant end carrier performance status using the MMI terminal.
To obtain the carrier link performance status:
1
Log in on the maintenance terminal.
At the > prompt, type D P and press the Enter key.
The report displays carrier error counts monitored over 17 minutes for
carrier 0. An example of the on-screen display for this command may
be seen in Figure 23 on page 84.
Note: The performance measurements indicate the service quality of
the carrier link you selected. Ideally all errored second categories
should be 0. If a number other than 0 appears in one or more columns,
it indicates momentary or continuous problem on the link. If the
numbers are small and the carrier is not in alarm state, the errors may
have been temporary and the link may continue to operate within the
specified thresholds.
To clear the cumulative error counter, enter the
CLEAR ERROR (C
E)
or
CLEAR ERROR DISTANT (C E D)
command, as
appropriate. Clearing these errors does not affect the errored second
counters.
2
To display a similar report for the 24-hour period listed in 1 hour
increments enter the
DISPLAY HISTORY (D H)
command for
the near end, or
DISPLAY HISTORY DISTANT (D H D)
for
the distant end. The screen displayed is similar to
Figure 57 on page 112.
Ideally all the parameters should show 0 for optimum performance.
However, if the carrier is not in alarm state, it may continue to perform
within the specified threshold limits.
