Directing the standby module to become active

To make the standby management module become the active management module, use the redundancy switchover command. The switch will switchover after all files have finished synchronizing.

In Nonstop switching mode:

  • The switchover occurs quickly and seamlessly. No reboot is needed.

  • There is no interruption in switching operations.

In warm-standby mode:

  • The switchover may take a couple of minutes if there have been recent configuration file changes or if you have downloaded a new operating system.

  • The standby module finishes booting and becomes the active module.

The formerly active module becomes the standby module if it passes selftest.

Syntax 


redundancy switchover

Causes a switchover to the standby module.

For Nonstop switching, the warning displays:A nonstop switching failover will occur; L2 operations will not be interrupted. This management module will now reboot and will become the standby module! You will need to use the other management module’s console interface. Do you want to continue [y/n]?

In warm-standby mode the warning displays:A warm failover will occur; all networking operations will be interrupted. This management module will now reboot and will become the standby module! You will need to use the other management module’s console interface. Do you want to continue [y/n]?

If management module redundancy has been disabled, or there is no standby module, or the standby module is not in standby mode, this message displays:The other management module does not exist or is not in standby mode An example of the 

redundancy switchover
command when the switch is in Nonstop switching mode is shown in the example below.

Example

Redundancy switchover command when in nonstop switching mode. 

switch# redundancy switchover
A nonstop switching failover will occur; L2 operations will not be interrupted.
This management module will now reboot and will become the standby
module! You will need to use the other management module's console interface.
Do you want to continue [y/n]? y
This management module will now boot from the primary image and will
become the standby module! You will need to used the other management module’s
console interface. Do you want to continue [y/n]? y
ROM information:
Build directory: /sw/rom/build/bmrom(t2g)
Build date: Oct 15 2009
Build time: 08:24:27
Build version: K.15.01
Build number: 13040
Select profile (primary):
Booting Primary Software Image...
...
Standby Console>