Dell S4820T Configuration Manual page 963

EXEC Privilege mode
write memory
3. Reload the switch.
EXEC Privilege mode
reload
Dell Networking OS automatically assigns a number to the new unit and adds it as member switch in
the stack.
The new unit synchronizes its running and startup configurations with the stack.
4. After the units are reloaded, the system reboots. The units come up in a stack after the reboot
completes.
To view the port assignments, use the show system stack-unit command.
Creating a New Stack
Prior to creating a stack, know which unit will be the management unit and which will be the standby
unit.
Enable the front ports of the units for stacking. For more information, refer to
Stacking.
To create a new stack, use the following commands.
1. Power up all units in the stack.
2. Verify that each unit has the same Dell Networking OS version prior to stacking them together.
EXEC Privilege mode
show version
3. Manually configure unit numbers for each unit, so that the stacking is deterministic upon boot up.
EXEC Privilege mode
stack-unit stack—unit—number renumber stack—unit—number.
Renumbering causes the unit to reboot. The stack-unit default for all new units is stack-unit 0.
4. Configure the switch priority for each unit to make management unit selection deterministic.
CONFIGURATION mode
stack-unit stack—unit—number priority priority
5. Assign a stack group for each unit.
CONFIGURATION mode
stack-unit stack-unit—id stack-group stack-group—id
Begin with the first port on the management unit. Next, configure both ports on each subsequent
unit. Finally, return to the management unit and configure the last port. (refer to the following
example.)
6. Connect the units using stacking cables.
Stacking
Enabling Front End Port
963