Display System-Parameters Maintenance - Avaya S8700 Maintenance Manual

Maintenance Object Repair Procedure
Resolving VC-LEV Errors/Alarms
VC ports are a key part of the MMCH feature, any loss in the number of ports
available for use degrades the MMCH customer defined service level.
If a VC circuit pack or port is busied out using the busyout board or busyout
port command, these out-of-service ports are not included in the VC level
calculation, thus allowing a technician to busyout a VC circuit pack for
maintenance reasons without causing a MAJOR alarm to be raised.
NOTE:
When diagnosing a VC-LEV problem, resolve any alarms raised against
VC-BD or VC-DSPPT MOs. Clearing VC-BD or VC-DSPPT alarms may
clear the VC-LEV alarm.
The VC circuit pack is maintained by the software similarly to the Tone Detector
circuit pack. Tone Detector circuit packs may be removed and reinserted in any
port-board slot without administration. The same rule applies to VC circuit packs.
If a VC circuit pack is removed from service logically (by failing the Archangel
sanity scan test) or is removed from service physically (by physically removing the
circuit pack from the carrier), no error/alarm is raised against VC-BD or
VC-DSPPT MOs. Therefore, if a VC-LEV error/alarm exists, and none has been
raised against VC-BD or VC-DSPPT MOs, a VC circuit pack may have been
removed from service causing the VC-LEV error/alarm. To resolve a VC-LEV
MAJOR alarm, restore the number of VC ports available for service to be equal to
or more than the calculated port capacity (value entered in the VCs field).
To determine how many VC circuit packs are needed for the MMCH feature:
1. Display the System-Parameters Maintenance form by executing the
command display system-parameters maintenance.
2. Locate the number listed in the Minimum Maintenance Threshold (VCs)
field. The MMCH feature requires one VC circuit pack for each four ports
listed in the Minimum Maintenance Threshold (VCs) field.
3. Divide the Minimum Maintenance Threshold value by 8 to determine the
number of VC circuit packs needed. For example, a port capacity of 12
listed in the Minimum Maintenance Threshold (VCs) field would require 2
VC circuit packs.
4. Use the list configuration command to verify that the number of VC circuit
packs listed agrees with the required number of VC circuit packs
(determined in step 3). If the number of VC circuit packs listed in the step 3
differs from the calculated number, restore the number of VC circuit packs
to the correct value, in order to resolve the VC-LEV alarm.
8-1360 Issue 1 May 2002 555-233-142