Reference Guide

Stacking | 861

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. The range of valid

priority values is from 1 to 14.

To revert the management priority of a stack unit to the default value of 0, use the

no form of the stack-unit

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 48-6. 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.

Password: *****

Dell> enable

Dell# configure

---

Dell#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]: