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If the switch has a redundant supervisor module, you must synchronize the active and standby supervisor modules after you upgrade the application software on the active supervisor module. During this synchronization, the new boot code and application software are copied to the standby supervisor module.
For information on how to synchronize the active and standby supervisor modules, see "Synchronizing the Active and Standby CPUs" in Chapter 10:�Configuring Redundancy Options.
If both supervisors are running v6.0 or later application software, the switch performs the following checks after you synchronize the active and standby supervisors:
If any of these settings changed during the synchronization, the standby supervisor module automatically resets so that it is failover-ready. In earlier versions of software, you had to manually reset the standby supervisor, if these settings changed.
Important: If you are updating the boot code, you must manually reset the standby supervisor after synchronizing it with the active supervisor.
Note: For this automatic reset feature to work, the active and standby supervisors must both be running v6.0 or later application software. The first time that you synchronize the supervisor modules after upgrading the active supervisor from a v5.x version of software to v6.x, you must manually reset the standby supervisor.
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