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## Related Documentation

- Guidelines for Deactivating High Availability
- Stateful Line Module Switchover Modes
- Application Support for Stateful Line Module Switchover
- mode
- line-card switch
- show redundancy history
- show redundancy line-card

# Deactivating High Availability

When you disable stateful line module switchover, both the primary and standby line modules are shifted to the online state. Both line module redundancy and stateful switchover of line modules are disabled. If the router uses redundant line modules, after you disable high availability, the router uses line module redundancy mode, which is the default behavior.

To disable high availability support:

1. From Global Configuration mode, launch Redundancy Configuration mode.
   host1(config)#redundancy
2. In Redundancy Configuration mode, disable high availability on the line module pair previously configured for stateful switchover
   host1(config-redundancy)#no mode high availability slot 11 16

In this example, high availability behavior configured for the primary line module that resides in slot 11 and the line secondary module installed in slot 16 is removed.

In this scenario, if slot 11 is in online state and slot 16 is in standby state, a warning message is displayed prompting you to confirm (enter y for yes, n for no) whether you want to proceed with the reloading of the line module in slot 16 and whether you want the primary and secondary modules to removed from the high availability pair. If you enter yes, the line module pair is disabled for stateful switchover after a reload operation is completed on slot 16. If you enter no, the high availability setting continues to be activated on the line module pair.

Alternatively, if the secondary line module in slot 16 has taken over the role of the primary line module in slot 11, and if you disable high availability on the line module pair, a warning message is displayed prompting you to confirm (enter y for yes, n for no) whether you want to proceed with the reloading of both the line modules in slot 16 and slot 11 and whether you want the modules to removed from the high availability pair. If you enter yes, the line module pair is disabled for stateful switchover after a reload operation is completed on slot 16 and slot 11. If you enter no, the high availability setting continues to be activated on the line module pair.

## Related Documentation

- Guidelines for Deactivating High Availability
- Stateful Line Module Switchover Modes
- Application Support for Stateful Line Module Switchover
- mode
- line-card switch
- show redundancy history
- show redundancy line-card

#### Published: 2011-03-24

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