Avaya S8700 Maintenance Manual page 2009

PNC-DUP (PNC Duplication)
Enabling and Removing PNC Duplication
NOTE:
PNC duplication requires IPSI duplication.
To Enable PNC Duplication
To enable PNC duplication perform the following sequence of steps:
1. Enable PNC-DUP on the change system-parameters customer-options
form.
2. Fully administer duplicate fiber link connectivity. Verify by list fibers. For
IP Duplication go to step three.
3. Fully administer IPSI duplication (ipserver-interface duplication). Verify
by using list ipserver-interface.
4. Turn on PNC-DUP via the change system-parameters duplication form.
This is note 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. For CSS configurations this takes up to 5
minutes depending upon CSS circuit pack insertion. For Direct Connect
configurations this is declared complete at 5 minutes after the first
appearance of the terminal login prompt.
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
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 in Chapter 8.
2. Busyout the standby PNC (B-PNC).
3. Turn off the system parameter for PNC-DUP via change
system-parameters duplication.
After PNC duplication has been removed, configuration audits will generate
the alarm shown below and possibly others. To clear this alarm, the
B-PNC fibers, circuit packs in switch node carriers (EIs, SNIs, SNCs, and
DS1Cs), and switch node carriers must be removed as outlined in the
following steps.
01D
In this case, 01D is the B-PNC switch node from which duplication was
removed.
555-233-143
SN_CONF 5000 255
Issue 1 May 2002 8-1287