Command Line Reference Guide

Before You Start

By following the instructions in the Dell PowerEdge M I/O Aggregator Getting Started Guide that is

shipped with the product, you install the Aggregator in a Dell PowerEdge M1000e Enclosure.

The Aggregator installs with zero-touch configuration. After you power it on, an Aggregator boots up

with default settings and auto-configures with software features enabled. This chapter describes the

default settings and software features that are automatically configured at startup. Use the tasks

described in the other chapters to reconfigure the Aggregator for customized network operation.

Operational Modes

The I/O Aggregator supports four operational modes. Select the operational mode that meets your

deployment needs. To enable a new operational mode, reload the switch.

• Standalone mode — stack-unit unit iom-mode standalone. This is the default mode for IOA. It is fully

automated zero-touch mode that allows you to configure VLAN memberships. (Supported in CMC)

• Programmable MUX mode (PMUX) — stack-unit unit iom-mode programmable-mux. Select this

mode to configure PMUX mode CLI commands.

• Stacking mode — stack-unit unit iom-mode stacking. Select this mode to stack up to 6 IOA stack

units as a single logical switch. The stack units can be in the same or on different chassis. This is a

low-touch mode where all configuration except VLAN membership is automated. To enable VLAN,

you must configure it. In this operational mode, base module links are dedicated to stacking.

• Virtual Link Trunking mode (VLT) — stack-unit unit iom-mode vlt. Select this mode to multi-home

server interfaces to different IOA modules. This is a low-touch mode where all configuration except

VLAN membership is automated. To enable VLAN, you must configure it. In this mode, base module

links are dedicated to VLT interconnect.

For more information, refer to the Dell PowerEdge M I/O Aggregator Configuration Guide.

Default Settings

The I/O Aggregator provides zero-touch configuration with the following default configuration settings:

• Default user name (root)

• Password (calvin)

• VLAN (vlan1) and IP address for in-band management (DHCP-assigned)

• IP address for out-of-band (OOB) management (DHCP-assigned)

• Read-only SNMP community name (public)

• Broadcast storm control (enabled)

• Unregistered Multicast Packets flooding (enabled)

Before You Start