Configuration manual

Assigning a Priority to Stacked Switches
To configure the stack so that the roles are assigned according to pre-determined priorities instead of
using the highest MAC addresses, use the stack-unit priority command in Global Configuration
mode on each stacked switch.
The switch with the highest priority number is elected master. The switch with the next highest priority
number is elected standby and takes over stack management if the master switch fails.
Configure the priority of stacked switches to determine stack mastership.
CONFIGURATION mode
stack-unit unit-number priority number
• stack-unit unit-number identifies the switch in the stack.
• priority priority-number specifies the management priority.
The valid range is from 1 to 14.
The default is 0.
To revert the management priority of a stack unit to the default value of 0, use the no form of the stack-
unit unit-number priority number command.
After you reconfigure the priorities of stacked switches, reload the stack so that a new master and
standby election is performed.
Renumbering a Stack Unit
To renumber a stack unit to reset the unit numbering for a master, standby or member unit, use the
following command.
• If you renumber the master switch, you are prompted to reload the entire stack.
• If you renumber the standby switch, only the switch reloads and is replaced by a member switch that
is elected as the new standby.
• If you renumber a member switch, only the member switch reloads.
• If you renumber a switch to a number already assigned to another stack unit, the following error
message displays:
Dell#stack-unit 5 renumber 0
% ERROR: stack unit 0 already exists.
Assign a stack-number to a unit.
EXEC Privilege mode
stack-unit unit-number renumber new-number
Provisioning a Stack Unit
You can logically provision a stack-unit number to accept only an MXL 10/40GbE 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.
When you provision a unit number for an MXL 10/40GbE switch:
850
Stacking