Maintenance-Object Repair Procedures
555-233-143
8-698
Issue 1 May 2002
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.
7.
change
system-parameters
duplication
Enable PNC duplication by changing the
Enable
Operation of PNC Duplication?
field to
y.
8.
Physically remove the a-pnc
and b-pnc fiber endpoint
circuit packs
Physically remove EI, SNI, and DS1C circuit packs
associated with the b-pnc.
9.
change circuit-pack
Un-administer the PNC circuit packs.
10.
clear firmware
Clear any alarms or errors against those circuit
packs.
11.
status pnc
Use the status pnc command to ensure that the
PNC is in good health.
Table 8-271.
Downgrading from Critical to High Reliability
÷
#
Command/Step
Description
1.
status pnc
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.
2.
busyout pnc-standby
Busyout the standby PNC.
3.
change system-parameters
duplication
Disable PNC duplication by changing the
Enable Operation of PNC
Duplication?
field to n.
4.
list fiber
Lists administered fiber connections by
number.
Continued on next page
Table 8-270.
Removing Fiber Connectivity to an PN —
Continued
÷
#
Command/Step
Description
Continued on next page
Summary of Contents for S8700 Series
Page 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Page 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Page 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Page 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Page 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Page 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...