To switchover to a standby CPAA from an active CPAA

Important information

The CPAM performs the following during a switchover:

  • verifies whether the protocol configuration is compatible (OSPF areas and ISIS levels and instances, BGP AS). If the protocols are administratively up on active, the protocols must be operationally up on the standby CPAA. The CPAM does not verify interface configuration, connectivity, or reachability.

  • administratively brings down the active CPAA and removes the IGP administrative domain and BGP AS from the CPAA.

  • adds the standby CPAA to the same IGP administrative domain and BGP AS.

  • ensures that the standby CPAA has the same event registration and keep event history configuration as the previously active CPAA.

  • ensures that the appropriate alarms are propagated to the new CPAA.

  • initiates the switchover of all of the relevant IP path monitors and ABM managed routes to use the standby CPAA, where applicable.

  • administratively enables the standby CPAA, which initiates the following:

    • The standby CPAA becomes the active CPAA. The previously active CPAA becomes the standby CPAA.

    • distributes the alarm configuration to the CPAA.

    • distributes the BGP monitored prefixes to the CPAA.

    • distributes the IGP shortcuts to the CPAA.

Note: Before a CPAA switchover, the CPAM verifies whether the same ISIS instances with similar ISIS level capabilities are configured on both the active and standby CPAA. The CPAM does not verify the ISIS interfaces or adjacencies for each instance, but does verify whether the same area IDs are configured on the similar instances of the active and inactive CPAAs.

You must ensure that the standby CPAA has the same ISIS configuration as the active CPAAs. Similar instances on both CPAAs have adjacencies to the same L1 domain with the same area ID.

Steps
 
1 

Choose Tools→Route Analysis→Admin Domains / CPAAs from the NFM-P main menu. The Admin Domains / CPAAs form opens.

2 

Choose CPAA (CPAM: Topology) from the object drop-down menu and click on the Search button. A list of discovered CPAAs appears.

3 

Choose the activeCPAA and click on the Properties button. The CPAA (Edit) form opens.

4 

Click on the Switchover button. If the Switchover button is not visible, click on the More Actions button and choose Switchover. A dialog box appears.

5 

Click on the Yes button to confirm the switchover.

6 

Click on the OK button. The CPAA (Edit) form closes.

End of steps

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