Reference Guide

Stacking | 867
Provisioning a Stack Unit
You can logically provision a stack-unit number to accept only an S5000 switch. Provisioning is a type of
pre-configuration that is stored on the master switch and applied when a stacked unit is assigned the unit
number.
To provision a stack unit, use the
stack-unit provision command in Global Configuration mode, save the
provisioning configuration, and reload the stack.
Converting 4x10GbE Ports to 40GbE for Stacking
Stacking is not supported on fixed 40GbE ports operating in 4x10G (quad) mode. To change a fixed port
from 4x10G to 40GbE mode of operation for stacking, use the
no stack-unit port portmode quad command.
After you convert the 4x10GbE ports to 40GbE, you must save the configuration and reload the stack for
the change to take effect.
Step Task Command Syntax Command Mode
1 Create a virtual stack unit by logically provisioning a
switch.
stack-unit unit-number
provision S5000
CONFIGURATION
2 Save the provisioning configuration.
write memory
EXEC PRIVILEGE
3 Reload the stack for the provisioning reconfiguration to
take effect.
reload
EXEC PRIVILEGE
Dell Networking OS Behavior: Stacking configuration is handled as follows on an S5000 switch:
• If a stack unit goes down and is removed from the stack, the logical provisioning configured for the
stack-unit number is saved on the master and standby switches.
• When you add a new unit to the stack and the stack already has an existing member unit with the
same stack-unit number, the new unit is assigned the smallest available unit number (0 to 11).
A configuration mismatch between the newly added unit and a logically provisioned unit occurs if
the logical provisioning for the unit number and the added unit have different stack groups config-
ured. In this case, the stack-group configuration on the new unit takes precedence over the logical
provisioning.
Step Task Command Syntax Command Mode
1 Convert a 4x10GbE port to 40GbE mode.
stack-unit number is the ID number of the stack unit. Valid
values: 0 to 11. To display the stack-unit number, use the
show system brief command.
no stack-unit unit-number
port port-number portmode
quad
CONFIGURATION
2 Save the port configuration.
write memory
EXEC PRIVILEGE
3 Reload the stack for the port reconfiguration to take effect.
reload
EXEC PRIVILEGE