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SRP-EPN
Issue 1 May 2002
8-1495
555-233-143
SRP-EPN
The Survivable Remote Expansion Port Network (SREPN) provides EPN service
to the customer when the link to the main processor fails or is broken, or when the
processor or center stage fails. SREPN is a disaster recovery operation rather
than an additional reliability option.
Due to the hardware solution for SRP (Survivable Remote Processor),
maintenance tests to make sure the SRP can go into “survive” mode are not
possible.
When the
Survivable Remote Processor
field on the system-parameters
customer-options form is set to
y
, then the following alarming strategy is used:
1. When the SRP is not in control of the SREPN (which is the normal state),
then every alarm associated with the SREPN is downgraded to a
WARNING alarm. These include the EXP-INTF in the SRP, the EXP-LINK
between the SRP and the SREPN, and every maintenance component in
the SREPN.
2. When the SRP is in control of the SREPN (the EXP-LINK is up between the
SRP and SREPN), the disaster recovery state is in effect. A MAJOR alarm
is raised against the SRP-EPN MO. Every other MO uses its normal alarm
strategy.
If the S8700 Multi-Connect’s server loses control (connectivity) to a SREPN, and
the SRP associated with the SREPN does not raise a MAJOR alarm against the
SRP-EPN MO, then the disaster recovery mechanism is not working.
There are no tests associated with the SRP-EPN MO. The only way to resolve
the SRP-EPN alarm is to fix the connectivity problem(s) between the server and
the SREPN.
MO’s Name
in Alarm Log
Alarm Level
Full Name of MO
SRP-EPN
MAJOR
SRP-EPN
Содержание S8700 Series
Страница 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Страница 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Страница 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Страница 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Страница 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Страница 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...
Страница 1121: ...CARR POW Carrier Power Supply Issue 1 May 2002 8 399 555 233 143 Figure 8 19 Power Distribution Unit J58890CH 1 ...
Страница 1447: ...E DIG RES TN800 reserve slot Issue 1 May 2002 8 725 555 233 143 E DIG RES TN800 reserve slot See ASAI RES ...
Страница 1735: ...LGATE AJ Issue 1 May 2002 8 1013 555 233 143 LGATE AJ See BRI SET LGATE BD See BRI BD LGATE PT See BRI PT ...
Страница 1846: ...Maintenance Object Repair Procedures 555 233 143 8 1124 Issue 1 May 2002 Figure 8 62 TN787 MMI MULTIMEDIA INTERFACE CIRCUIT PACK ...