Installation guide

Command Reference
26
Cisco IOS 11.2(15)GS2
redundancy force-failover
Use the redundancy force-failover EXEC command to force the secondary GRP to become the
primary GRP.
redundancy force-failover
Syntax Description
This command has no keywords or arguments.
Default
None
Command Mode
Privileged EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 11.2 GS.
The router is interrupted while the processing services are enabled on the newly established primary
GRP.
The secondary, as part of the process of taking over as the new primary, resets the old primary.
The following list suggests a few situtations where you might use the redundancy force-failover
command:
• Prior to removing a primary GRP for maintenance. You may want to force the secondary to take
over operation as the primary GRP.
• After loading a new software image on the secondary. You can force the new software to run,
leaving a prior version of software on the old primary as backup.
• When remotely testing failover operation on a system. You can force a failover by using the
redundancy force-failover command, rather than physically pulling the primary GRP out of the
router.
Example
The following example forces the secondary GRP to become the primary GRP:
redundancy force-failover
Proceed with failover? [confirm]n
Pressing the enter key or a y accepts the action. Press n to disallow the action.
Related Commands
redundancy