Concept Guide

NOTE: QSFP+ 40 G ports configured for quad-port into four 10 G ports display information for all
four ports.
IOA Information
The IOA Information section of the Dashboard page displays information about the managed I/O
Aggregator device in three subsections:
• Properties
• Status
• Settings
The Properties subsection lists the following information about the managed I/O Aggregator device:
• Model — The I/O Aggregator device type: MIOA (for Dell I/O Aggregator M1000e chassis) or FN IOA
(for Dell PowerEdge IOM FX2 chassis).
• Active IOA Mode — Current mode of the IOA device:
– Standalone Mode (default) — Single device. This mode is the default setting.
– Stack Mode — Multiple switches operate as single unit. A single switch in the stack (Master switch)
manages all units in the stack and uses a single IP address that you can use to manage every port
in the stack.
– VLT Mode — Virtual Link Trunking. VLT enables physical links between two chassis to appear as a
single virtual link to the network core or other switches such as Edge, Access, or ToR. VLT reduces
the role of Spanning Tree protocols by allowing LAG terminations on two separate distribution or
core switches, and by supporting a loop free topology. VLT institutes Layer 2 multipathing,
creating redundancy through increased bandwidth, enabling multiple parallel paths between
nodes and load-balancing traffic where alternative paths exist.
– Programmable MUX Mode — Programmable Multiplex mode. This mode provides flexibility of
operation with added configurability. This mode creates multiple LAGs, configuring VLANs on
uplinks and the server side, and configuring data center bridging (DCB) parameters. Programmable
MUX mode supports both stacking and VLT operations. You can make any configuration or
provisioning of the device through the CLI.
– Full Switch — Applicable only for FN IOA for FX2 chassis. Supports layer 2 and layer 3 routing. You
can make any configuration or provisioning of the device through the CLI.
• IOA Mode After Reboot — The IOA mode for the device after a reboot.
• Host Name
• Fabric — The slot in the chassis: A1, A2, B1, B2, C1, or C2.
NOTE: Slots B1, B2, C1, and C2 apply only to MIOA.
• Unit — The device value assigned at factory: 0 to 5.
NOTE: If you stack I/O Aggregator devices, two units cannot both have the unit value of 0. The
system reassigns one device with a unit value of 0 to 1.
• Optional Module 1 — m1000e chassis only. Module 1 contains ports 49–56.
• Optional Module 2 — m1000e chassis only. Module 2 contains ports 41–48.
• Service Tag — The identifier used when contacting Dell Customer Support.
• System MAC Address — The MAC address of the entire I/O Aggregator device.
• Port MAC Address — The MAC address for the I/O Aggregator interfaces.
• Hardware Version — The I/O Aggregator device version.
• Firmware Version — The I/O Aggregator firmware version.
The Status subsection displays the device health.
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