Stack Manager Election and Re-Election

The stack manager is elected or re-elected based on one of these factors and in the order listed:

• The switch that is currently the stack manager.
• The switch with the highest stack member priority value.
  

  Note

  We recommend assigning the highest priority value to the switch that you prefer to be the stack manager. This ensures that the switch is re-elected as stack manager if a re-election occurs.
• The switch with the higher MAC address.

A stack manager retains its role unless one of these events occurs:

• The stack manager is removed from the switch stack.
• The stack manager is rebooted or powered off.
• The stack manager has failed.
• The switch stack membership is increased by adding powered-on standalone switches or switch stacks.

In the case of a manager re-election, the new stack manager becomes available after a few seconds.

If a new stack manager is elected and the previous stack manager becomes available, the previous stack manager does not resume its role as stack manager.