Avaya 03-300430 Manual Do Utilizador

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The global refresh from releasing the standby PNC has completed.

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The standby PNC’s state of health surpasses the active PNC’s.

At this point, the faulty component is on the standby PNC, and the PNCs are locked in their 
current active/standby state.

3. Busyout the PNC with busyout pnc.
4. Use fault isolation and component testing procedures for the individual PNC components, 

just as for a simplex PNC.  Replacement of components does disrupt operation of the active 
PNC.

5. Once the failed component is replaced, use status pnc to check the health standby PNC 

component.

6. When confident that the problem has been resolved, as indicated by an all-zero state of 

health, unlock (set pnc unlock) and release (release pnc) the PNC.  Note that no 

further PNC interchange is required since you can test the standby PNC as thoroughly as 
the active.

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A system reset of level 1 (warm), 2 (cold2) or 4 (reboot) does not change which PNC is 
active.  If a PNC interchange was in progress when the reset took place, the PNC 
interchange continued until completion.

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If a reset system 1 (warm) takes place during a PNC interchange, the reset is 

escalated to level 2 (cold2).

In some cases, PNC duplication can aid in the fault isolation procedure.  PNC interchanges can 
be used to help isolate the faulty hardware.  Two examples demonstrating this technique follow:

1. There is a fault that can occur in either an IPSI connected PN’s ATM-EI or the PKT-INT 

which cannot be readily attributed to one board or the other.  If the packet bus transceivers 
on either the PKT-INT or ATM-EI fail, the two boards cannot communicate, but it will not be 
clear which board is at fault.  In this case, a planned interchange of the PNC can be used to 
indicate which of the two boards.  If the interchange:

- Cures the problem, the ATM-EI was at fault

- Does not cure the problem, the PKT-INT is suspect (provided there are no PKT-BUS 

faults)

2. A similar relationship exists for the PN Archangel (EAA - the active ATM-EI) and certain 

TDM-bus problems.  If the EAA is unable to communicate with a port board over the TDM 
bus, either the EAA has a fault, the port board has a fault, or there is a problem with the