Avaya S8700 Maintenance Manual page 628

Maintenance Commands
In a duplicated system, each PNC has a separate entry for the following fields,
representing conditions for only that particular PNC.
This field displays "active" or "standby", depending on whether or not that PNC
Mode
controls active call processing.
On a system with duplicated PNC, the state of health of each PNC. For the
State of
standby PNC, service effects mentioned below are those that would occur if that
Health
PNC were to become active via an interchange.
Functional: the indicated PNC has no service disrupting alarms against it. The
state-of-health vector is all zeros, and call setup on the standby PNC matches
that of the active.
Partially functional: the health of the PNC is less than perfect. The source and
severity of the problem is indicated by the state-of-health vector (Inter-PN and
Inter-SN Indexes). Whenever the standby's state of health is partially functional,
duplicated call setup on the standby probably does not match that on the active.
Not functional: Expansion Archangel Links to all PNs are down on this PNC.
No service is possible to any PNs via this PNC.
The Inter-PN and Inter-SN Indexes form the state-of-health vector, which is used
Inter PN
to track and compare the states of health of both PNCs. The fields making up the
Index,
indexes are 2-digit numbers separated by periods (.), with each field representing
Inter SN
a different class of faults. The fault class fields are arranged in order of
Index
decreasing importance from left to right. In other words, each field in the index
supersedes the following fields in determining which PNC is healthiest. The
Inter-PN Index contains five fields (XX.XX.XX.XX.XX), and the Inter-SN Index
has two (XX.XX). The Inter-PN Index reports faults in connectivity between port
networks and supersedes the Inter-SN Index, which reports faults in connectivity
between switch nodes. (The Inter-SN Index is only meaningful for systems with a
center stage switch having 2 switch nodes, each of which is duplicated).
The meaning of each fault class field is given in
indicates that there are no such faults reported. Higher numbers indicate
increasing number of faults. All zeros indicates a perfect state of health. Unless
the PNCs are locked, the active PNC's state of health should always be equal to
or better than the standby's. (Otherwise, the system would perform a
spontaneous interchange.)
After a PNC-related alarm is cleared, the system performs a partial refresh of the
standby PNC. The corresponding fault class field is not updated to reflect the
improved state of health until the refresh is done. The state-of-health indexes will
not agree with the current alarm status during this period.
7-372 Issue 1 May 2002
Table 7-53 below. A zero entry
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