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Stack Management
Adding, removing, or replacing units in a stack
NOTE
Both the multi-stack-trunk and the multi-stack-port commands perform numerous checks to make sure no unit
would become unreachable. However, the checks have limitations. Verify the physical connections with the show stack
connection command, and make sure that reducing or removing stack-ports or stack-trunks will not break the stack.
NOTE
Reducing or removing live stack-trunks or stack-ports changes stacking ports to data ports. This creates Layer 2 loops if
no Spanning Tree Protocol is configured in the default VLAN. Ruckus recommends that you either disconnect these
ports or disable them.
Adding, removing, or replacing units in a stack
You can add, remove, or replace stack units using stack interactive-setup or manually using static configuration. The
recommended method is to connect units to the stack before you supply power to the units; however, you can also connect
powered units.
Installing a new unit in a stack using stack interactive-setup
This method can be applied to clean units or units that have existing configurations.
1.
Connect the new unit to the stack by connecting the appropriate stacking ports.
2.
Run stack interactive-setup on the active controller, and assign an ID to the new unit. The active controller resets the
new unit.
3.
Once the new unit boots and joins the stack, enter the write memory command on the active controller.
Removing a unit from a stack
To remove a unit from the stack, disconnect the cables from the stacking ports. This can be done whether the units are powered
on or powered off. When you remove a unit that is powered on, it is still in stacking-enabled mode. To remove the stacking files,
enter the stack unconfigure me or stack unconfigure clean command.
The stack unconfigure me command returns a unit to the state it had before joining a stack and recovers its startup
configuration. The stack unconfigure clean command removes the unit's startup configuration. When you issue either
command, the unit operates as a standalone unit once it reboots.
When a unit is removed from a stack, the active controller deletes the unit configuration if it has been dynamically learned. Refer
to
Stacking terminology
on page 19 for definitions of static and dynamic configurations.
Stack unit replacement
You can replace any stack unit except the active controller with a clean unit of the same model without entering any commands.
Discovery and unit replacement are completed in approximately one to two minutes; however, additional time is required to
reload the new unit.
To replace a unit, the following are required:
•
The unit being replaced must have a static configuration. Use the show stack command as shown in the following
procedures to check for an "S" next to the unit, indicating its configuration is static.
210
Ruckus FastIron Stacking Configuration Guide, 08.0.90
Part Number: 53-1005572-01
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Troubleshooting
