Reference Guide

Stacking | 867
To revert the management priority of a stack unit to the default value of 0, use the no form of the stack-unit
u
nit-number priority number command.
Renumbering a Stack Unit
By default, each stack unit is assigned the unit-number 0. To renumber a stack unit to pre-configure the
numbering of the master, standby, and member units, use the
stack-unit renumber command in EXEC
Privilege mode. After you enter the command, you are prompted to reload the switch and save the stacking
configuration.
Figure 47-6. Warning Messages Displayed After Renumbering a Stack Unit
When you renumber a stacked switch in an existing stack:
• 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, an error message is
displayed.
Configuring S5000 Stacking Ports and Bringing Up a Stack
After you attach port cables to set up a stack of S5000 switches, bring up the stack by enabling stacking on
S5000 ports as follows:
Note: If you reconfigure the priorities of stacked switches in an existing S5000 stack, reload the stack so
that a new master and standby election is performed.
Step Task Command Syntax Command Mode
1 Power up a cabled S5000 switch and set up a connection as described in Accessing the Stack CLI.
2 Log on to the CLI and enter global configuration mode.
Login: username
Password: *****
FTOS> enable
FTOS# configure
---
3 Configure the priority used to determine the stack master
and standby roles in the stack, where
stack-unit 0 is the default stack-unit number.
priority value specifies the management priority.
Range: 1-14. Default: 0. The unit with the highest priority is
elected stack master.
stack-unit 0 priority value
CONFIGURATION
4 Repeat Steps 1 to 3 on each stack unit to pre-configure the election of master and standby stack units.
FTOS#stack-unit 0 renumber 5
Renumbering management unit will reload the stack.
Warning: Interface configuration for current unit will be lost!
Proceed to renumber [confirm yes/no]: