Avaya S8700 Maintenance Manual page 967

ATM PNC-DUP (ATM PNC Duplication)
Steady State LEDs
The LEDs of PNC components in a stable duplicated system should appear as
follows:
For an active ATM EI (functioning as Archangel) in an EPN without IPSIs,
its amber LED's flash pattern is 2 seconds on/200 ms off.
For a standby ATM EI in an EPN without IPSIs, it's amber LED is off.
For an active ATM EI in an EPN with IPSIs, its amber LED is on steady.
For an standby ATM EI in an EPN with IPSIs, its amber LED is off.
PNC State of Health
PNC-DUP software monitors the health of the two PNCs as determined by their
state-of-health (SOH) vectors, and initiates an interchange when the health of the
active falls below that of the standby (unless prevented from doing so by a PNC
lock, busyout, or antithrashing mechanism). Potentially service-disrupting faults
that occur in a PNC's components are reported to PNC-DUP and incorporated in
the affected PNC's state of health. The SOHs of both PNCs are displayed on the
status pnc form, as shown in
status pnc
A-PNC
Mode: active
State of Health: functional
Inter PN Index: 00.00.00.00
Major Alarms: 0
Minor Alarms: 0
Warning Alarms: 0
Figure 8-9. Status PNC form with standby PNC fully In-Service
555-233-143
Figure
PORT-NETWORK CONNECTIVITY
Duplicated? yes
Software Locked? no
Standby Busied? no
Standby Refreshed? yes
Interchange Disabled? no
State of Health: functional
Warning Alarms: 0
8-9.
page 1 of 1
B-PNC
Mode: standby
Inter PN Index: 00.00.00.00
Major Alarms: 0
Minor Alarms: 0
Issue 1 May 2002 8-245