• Inuence the selection of the stack management units.
CONFIGURATION mode
stack-unit unit-number priority priority-value
The unit with the numerically highest priority is elected the master management unit, and the unit with the second highest priority is
the standby unit.
The range is from 1 to 14.
The default is 0.
Managing Redundancy on a Stack
Use the following commands to manage the redundancy on a stack.
• Reset the current management unit and make the standby unit the new master unit.
EXEC Privilege mode
redundancy force-failover stack-unit
A new standby is elected. When the former stack master comes back online, it becomes a member unit.
• Prevent the stack master from rebooting after a failover.
CONFIGURATION mode
redundancy disable-auto-reboot stack-unit
This command does not aect a forced failover, manual reset, or a stack-link disconnect.
• Display redundancy information.
EXEC Privilege mode
show redundancy
Resetting a Unit on a Stack
You may reset any stack unit except for the master management unit, as shown in the following message.
% Error: Reset of master unit is not allowed.
To rest a unit on a stack, use the following commands.
• Reload a stack-unit.
EXEC Privilege mode
reset stack-unit unit-number
• Reload a member unit, from the unit itself.
EXEC Privilege mode
reset-self
• Reset a stack-unit when the unit is in a problem state.
EXEC Privilege mode
reset stack-unit unit-number {hard}
816
Stacking
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