Avaya 03-300430 User Manual

To enable PNC duplication, perform the following sequence of steps:

1. Enable administration of PNC-DUP on the change system-parameters 

customer-options screen.

2. Fully administer duplicate ATM PNC connectivity.  Verify by list atm pnc.  Or for IP 

duplication, go to step three.

3. Fully administer IPSI duplication (ipserver-interface duplication).  Verify by using 

list ipserver-interface.

4. Activate PNC-DUP through the change system-parameters duplication screen.  

This is not allowed if any component of either PNC (A or B) is busied out.

5. 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 finishes when the first terminal login prompt appears.

6. 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.  See reset pnc.
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 

screen for ATM PNC.

5. Remove the B-PNC circuit packs (ATM-EI boards).  Use change circuit-pack 

location.

6. Disable administration of PNC duplication on the change system-parameters 

customer-options screen by changing the PNC Duplication field to n.
Notes:

●

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.