Testing - Avaya Nortel Communication Server 1000 Reference

counter values are put into the history log. The error counter indicates the number of errors
that occurred because the error counter was cleared.
Display History
Enter the Display History (D H) command set to display performance counters for each hour
for the past 24 hours. A screen similar to the following appears:
LTI T1 Interface History Performance Log
3/03/95 1:35
Hour Errored
Frame Slip
Ending Seconds
20:00 139
19.00 0
18.00 0
17.00 0
16.00 0
Use the pause command to display a full screen at a time by entering D H P.
Clear Error
Reset the error counter to zero by entering the Clear Error (C E) command set. The error
counter provides a convenient way to determine if the T1 link is performing without errors
because it can be cleared and examined at any time.

Testing

The Test Carrier (T C) command set enables tests to be run on the Lineside T1 card, the T1
link, or the CPE device. These three tests provide the capability to isolate faulty conditions in
any one of these three sources. See
information about these three test types.
After entering the T C command set, select which test to start. The prompt appears, similar to
the following:
Test 1: Local Loopback Test
Test 2: External Loopback Test
Test 3: Network Loopback Test
(1,2,3 or S to cancel):
Tests can be performed once (for 1 through 98 minutes), or continuously (selected by entering
99 minutes) until a "Stop Test" command is entered. Tests continue for the duration specified
even if a failure occurs, and terminate at the end of the time period or when a "Stop Test"
Circuit Card Reference
Bursty Unavailable
Seconds Seconds
0 129
0 0
0 0
0 0
0 0
Table 82: MMI Tests
Man-Machine T1 maintenance interface software
Loss Frame Error
Seconds Seconds Counter
139 23 162
0 0 0
0 0 0
0 0 0
0 0 0
on page 188 for additional
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