Users Guide

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To rest a unit on a stack, use the following commands:

• Reload a stack-unit from the master switch.

EXEC Privilege mode

reset stack-unit unit-number

• Reset a stack-unit when the unit is in a problem state.

EXEC Privilege mode

reset stack-unitunit-number {hard}

Removing an Aggregator from a Stack and Restoring Quad Mode

To remove an Aggregator from a stack and return the 40GbE stacking ports to 4x10GbE quad mode

follow the below steps:

1. Disconnect the stacking cables from the unit. The unit can be powered on or off and can be online

or offline.

2. Log on to the CLI and enter Global Configuration mode.

Password: *****

Dell> enable

Dell# configure

3. Configure the Aggregator to operate in standalone mode.

stack-unit 0 iom-mode standalone

CONFIGURATION

4. Log on to the CLI and reboot each switch, one after another, in as short a time as possible.

reload

EXEC PRIVILEGE

When the reload completes, the base-module ports comes up in 4x10GbE (quad) mode. The switch

functions in standalone mode but retains the running and startup configuration that was last

synchronized by the master switch while it operated as a stack unit.

Configuring the Uplink Speed of Interfaces as 40 Gigabit

Ethernet

You can configure the I/O Aggregator switch in standalone, VLT, and stack modes to operate with an

uplink speed of 40 Gigabit Ethernet per second. You can use the chassis management controller (CMC)

interface to access the switch and specify the 40 GbE QSFP+ module ports to function in 40 GbE mode

after the subsequent reload operation. By default, these QSFP+ modules function in 10GbE mode.

When you configure the native mode to be 40 GbE, the CMC sends a notification to the Aggregator to

set the default internal working of all of the ports to be 40 GbE after the switch reloads. After you set this

configuration, you must enter the reboot command (not pressing the Reset button, which causes the

factory default settings to be applied when the device comes up online) from the CMC for the uplink

speed to be effective.

Stacking

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