Reference Guide

874 | Stacking
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Removing a Stack Group from Stacking Mode
To remove a stack group of four 10GbE ports or one 40GbE port from the stack, use the no form of the
stack-unit unit-number stack-group number command. After entering the command, save the configuration
and if necessary, re-attach the cables to ports in a different stack group that has been enabled for stacking.
Then reload the stack for the change to take effect.
To remove a stack group from an S5000 stack:
Removing a Switch from a Stack
After you remove all ports from an S5000 stack (Removing a Stack Group from Stacking Mode), the
switch functions in standalone mode but retains the running and startup configuration that was last
synchronized by the master switch while it operated as a stack unit.
To remove a switch from a stack, disconnect the stacking cables from the unit either when the unit is
powered on or off and is online or offline.
If you remove a unit from the middle of a daisy-chained stack, the stack is split into two parts. Each split
stack forms a new stack according to MAC addresses or assigned priorities, as described in Configuring
S5000 Stacking Ports and Bringing Up a Stack and Assigning a Priority to Stacked Switches.
Adding a Stack Unit
Before you add a unit to an S5000 stack, use the show version command to verify that the switch is running
the same FTOS version and then power down the switch.
You can add a new powered-down unit to an existing stack both when the unit has no stacking ports (stack
groups) configured and when the unit already has stacking ports configured. If a unit that was previously
configured for stacking is added to a stack, it is assigned the smallest available unit number in the stack.
You can also pre-configure a stack unit number and priority on the switch to be added by using the
following commands:
Step Task Command Syntax Command Mode
1 Remove a stacking port from a stack.
no stack-unit unit-number
stack-group group
CONFIGURATION
2 Save the port configuration.
write memory
EXEC PRIVILEGE
3 Reload the stack for the port reconfiguration to take effect.
reload
EXEC PRIVILEGE
Command Syntax Command Mode Task
show system brief
show system stack-unit
EXEC Privilege On the stack, determine the next available stack-unit
number and the management priority of the management
unit.