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Configuring Failover to Backup Media if a Software Process Fails

For routers with redundant Routing Engines, you can configure the routing platform to switch to backup media that contains a version of the system if a software process fails repeatedly. You can configure the routing platform to fail over either to backup media or to the other Routing Engine. To configure automatic switchover to backup media if a software process fails, include the failover statement at the [edit system processes process-name] hierarchy level:



[edit system processes]

process-name failover (alternate-media
| other-routing-engine);

process-name is one of the valid process names. If this statement is configured for a process, and that process fails four times within 30 seconds, the router reboots from either the alternative media or the other Routing Engine. For more information about the boot sequence, see the JUNOS Software Installation and Upgrade Guide.

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