User's Manual

DEFINITY ECS Release 8.2 Maintenance for R8.2csi 555-233-119 Issue 1
April 2000
Maintenance Objects
3-200ATM PNC-DUP (ATM PNC Duplication)
3
3. Activate PNC-DUP through the
change system-parameters duplication
form. This is not allowed if any component of either PNC (A or B) is busied
out.
4. The system must insert all connectivity-related components for both
standby and active PNC, a process that takes up to 5 minutes, depending
upon circuit pack insertion. The process is complete when the first
terminal login prompt appears.
5. The PNC-DUP initialization anti-thrashing timer must expire (this occurs 5
minutes after completion of board insertion, PNC interchange, or system
reset of level 2 or higher).
To disable PNC duplication perform the following sequence of steps:
1. Verify that the A-PNC is active. A forced interchange may be required.
2. Busyout the standby PNC (B-PNC).
3. Turn off the system parameter for PNC-DUP through
change
system-parameters duplication
.
4. Remove the B-PNC connectivity by removing the Board Locations on the
change fiber
form for ATM-PNC.
5. Remove the B-PNC circuit packs (ATM-EI boards). Use
change circuit
pack UUC
.
6. Disable administration of PNC duplication on the
change
system-parameters customer-options
form by changing the
PNC
Duplication
field to
n
.
NOTE:
Alterations to PNC that involve only the addition of connectivity can be done
with PNC-DUP operational.
Alterations requiring the
removal of connectivity must be done with
PNC-DUP removed.
PNC-DUP must be removed and translations should be saved before
making any hardware changes.
Steady State LEDs
The LEDs of PNC components in a stable duplicated system should appear as
follows:
■ The active ATM-EIs in the EPNs are functioning as Archangels. Their
yellow LED flash pattern is 2 seconds on/200 ms off.
■ The EPN standby EIs yellow LEDs are off.
■ The PPN active EI yellow LED is on steady.
■ The PPN standby EI yellow LED is off.