Avaya S8700 Maintenance Manual page 1420

Maintenance-Object Repair Procedures
Table 8-270. Removing Fiber Connectivity to an PN — Continued
÷ # Command/Step
7. change
system-parameters
duplication
8. Physically remove the a-pnc
and b-pnc fiber endpoint
circuit packs
9. change circuit-pack
10. clear firmware
11. status pnc
Downgrading from Critical to High Reliability
The strategy this downgrade follows is to change from critical to high reliability.
High reliability is actually duplication of the media server, control network, and
IPSIs without duplicate paths from IPSIs to CSS.
Table 8-271. Downgrading from Critical to High Reliability
÷ # Command/Step
1. status pnc
2. busyout pnc-standby
3. change system-parameters
duplication
4. list fiber
8-698 Issue 1 May 2002
Description
Enable PNC duplication by changing the
Operation of PNC Duplication?
y.
Physically remove EI, SNI, and DS1C circuit packs
associated with the b-pnc.
Un-administer the PNC circuit packs.
Clear any alarms or errors against those circuit
packs.
Use the status pnc command to ensure that the
PNC is in good health.
Description
Check to see if A-side is active. If not:
a. Resolve any alarms against
a-pnc.
b. reset pnc-interchange to
activate a-pnc.
Busyout the standby PNC.
Disable PNC duplication by changing the
Enable Operation of PNC
Duplication?
Lists administered fiber connections by
number.
Enable
field to
Continued on next page
field to n.
Continued on next page
555-233-143