Operating Instructions 5/1543-AXB 901 33/7 Uen A

Temporarily Disable Active-Standby Geographical Redundancy
Ericsson Service-Aware Policy Controller

Contents


1 Description

This instruction describes how to temporarily disable active-standby geographical redundancy in the SAPC.

Prerequisites

This section provides information of the prerequisites which must be fulfilled before using the procedure.

The following conditions must apply:

  • Understand geographical redundancy functionality.

  • Both SAPCs are in Active or Standby state.

2 Procedure

2.1 Disable Active-Standby Geographical Redundancy

To stop geographical redundancy, do the following:

Steps

  1. Connect to the SAPC in which the administrative operation is executed and open an Ericsson Command-Line Interface (CLI) session:
  2. Navigate to class GeoRedManager object:
    >dn ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1
  3. Execute stop action:
    (ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1)> stop
    If action was successfully executed, data replication stops until start command is executed.
    During this period, DBS, NR, Redundancy Disabled alarm is raised. Also, the other SAPC raises Policy Control, Geographical Redundancy Unable To Reach Peer alarm.
    If the other SAPC is in Standby state, it changes to Active state to takeover.
  4. Verify the result of the action:
    (ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1)> show
    Note: Since this is a long-running operation, it can be required to enter show command several times until the final operation result is shown in the progress report.
    When the operation is successfully executed, it shows the following values:
    lastOperationExecuted=STOP
    lastOperationResult=ACTION_RESULT_OK
    To check the status of the SAPC, verify that the attribute currentState is Halted
    If an error occurs during the execution of the operation, it shows the following values:
    lastOperationExecuted=STOP
    lastOperationResult=ACTION_RESULT_NOT_OK
    Attribute lastOperationDetailedInfo shows information about the error. It can take one of these values:
    • Already in Halted state

    • Not possible to execute stop action from <state> state

    • Not possible to execute stop action when peer is initial or halted state

2.2 Administrative Procedure

Execute the administrative procedure in the SAPC in Halted state.

2.3 Enable Active-Standby Geographical Redundancy

To enable again geographical redundancy, do the following:

Steps

  1. Configure Active SAPC as Preferred and Halted SAPC as Non-Preferred (See Change Preferred Role in Active-Standby Geographical Redundancy). This guarantees that the data changes performed during the administrative procedure are not lost.
  2. Connect to the Halted SAPC and open an Ericsson Command-Line Interface (CLI) session:
  3. Navigate to class GeoRedManager object:
    >dn ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1
  4. Execute start action:
    (ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1)> start
    If action was successfully executed, data replication starts and the SAPC synchronizes with the other SAPC.
  5. Verify the result of the action:
    (ManagedElement=1,PolicyControlFunction=1,GeoRedManager=1)> show
    When the operation is successfully executed, it shows the following values:
    lastOperationExecuted=START
    lastOperationResult=ACTION_RESULT_OK
    To check the status of the SAPC, verify that the attribute currentState is not Halted.
    If an error occurs during the execution of the operation, it shows the following values:
    lastOperationExecuted=START
    lastOperationResult=ACTION_RESULT_NOT_OK
    Attribute lastOperationDetailedInfo shows information about the error. It can take one of these values:
    • Not possible to execute start action from <state> state

    • Parameter <parameter> not valid