Administrator 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.
Topics:
• Operational Modes
• Default Settings
• Other Auto-Configured Settings
• Where to Go From Here
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)
● IGMP snooping in all VLANs except the default VLAN (enabled)
● VLAN configuration (all ports belong to all VLANs)
You can change any of these default settings using the CLI. Refer to the appropriate chapter for details.
NOTE:
You can also change many of the default settings using the chassis management controller (CMC) interface. For
information about how to access the CMC to configure an Aggregator, refer to the Dell PowerEdge M1000e Enclosure
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16 Before You Start