Removing a unit from the stack
Description
This is the process to remove a unit from the stack.
Steps
1. User can manually disconnect the unit by removing stacking cables. Unit can be disconnected while
it is powered on or off.
2. When unit is disconnected, it will have stacking enabled. To recover to a clean unit user can use
'stack unconfigure clean' or 'stack unconfigure me' commands on this unit.
3. If the removed unit was dynamically learned, the active unit will remove this unit from configuration.
If the removed unit was static, the configuration can be removed by issuing 'no stack unit <unit id>'
command.
4. To temporarily disable a unit from stack, on the active unit enter stack disable command for the
particular unit.
NOTE
'Stack unconfigure me' will recover the unit to its startup configuration before it joined the stack. 'Stack
unconfigure clean' will remove the startup configuration from the unit. These commands will reload the
unit and boot up as standalone unit
Replacing a unit from the stack
Assumption
• All the units have sequential IDs
• Replacing with a clean unit
Description
If you want to replace an old unit from the stack, there can be two scenarios in this case,
1. Replacing an old stack unit with a clean stack unit
2. Replacing multiple stack units with multiple clean stack unit
Steps
Replacing one stack unit with a clean stack unit
1. After removing the old unit from the stack, connect the new unit to the stack using the same
stacking ports used by the old unit.
2. If the module configuration of the replacement unit matches the configuration on the Active
Controller, the Active Controller resets the new unit and upon boot up the new unit joins the stack
with the same ID was the unit that was removed, and the stack retains its original topology.
3. If the configuration of the new unit does not match the old unit, the new unit is added with a new ID
based on the next available ID.
Replacing multiple stack units with multiple clean stack units
1. After removing the old stack units, connect the new units to the existing stack using the stacking
ports as the old unit.
2. The active controller replaces the unit with the lowest ID first. For example, if you remove units 4
and 5, the active controller assigns ID 4 to the first new device you install.
3. If you wanted this particular unit to replace unit 5, instead of unit 4, you must use secure-setup to
select the ID of the old unit for the new unit. The active controller resets the unit, and upon boot up it
joins the stack.
Removing a unit from the stack
82
Brocade ICX 7450, Brocade ICX 7750, and Brocade ICX 7250 Stacking Deployment Guide
53-1003581-03
