Predicted SecureStack Disruption Timing when Replacing an Operational Manager Unit

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Article ID: 12133 

Products
SecureStack C3, C2, B3, B2, A2 

Discussion
In article 7086, the "Stack Disruption timing" as refers to the manager unit discusses only what happens when the manager unit's role is swapped to a different device within the stack. 

If instead it is desired to swap out the operational manager unit for a replacement manager unit having the same unit number and firmware version, these are the steps that would be required: 

  1. Issue the 'set switch movemanagement...' command to swap the manager role to a different unit (30-40 seconds stack disruption).
  2. Remove the now non-manager unit (2-3 seconds disruption).
  3. Add a new non-manager unit (will eventually integrate - takes longer if the stack is busy), and confirm that it has the proper unit number.
  4. Issue the 'set switch movemanagement...' command to swap the manager role to the unit that was just added (30-40 seconds stack disruption).

In none of these steps would an actual reset (power cycle) of stack units occur. However, the entire stack will not be able to pass traffic for certain intervals of time as stated above in steps 1, 2, and 4. 

See also: 10749.
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Posted 5 years ago

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