Administrator Guide

PMUX Mode of the IO Aggregator

This chapter provides an overview of the PMUX mode.

I/O Aggregator (IOA) Programmable

MUX (PMUX) Mode

IOA PMUX is a mode that provides flexibility of operation with added configurability. This involves creating

multiple LAGs, configuring VLANs on uplinks and the server side, configuring data center bridging (DCB)

parameters, and so forth.

By default, IOA starts up in IOA Standalone mode. You can change to PMUX mode by executing the following

commands and then reloading the IOA. After the IOA reboots, the IOA operates in PMUX mode. PMUX mode

supports both stacking and VLT operations.

Configuring and Changing to PMUX

Mode

After the IOA is operational in the default Standalone mode:

1 Connect the terminal to the console port on the IOA to access the CLI and enter the following

commands:

Password: *****

Dell> enable

Dell#

Dell#show system stack-unit 0 iom-mode

Unit Boot-Mode Next-Boot

------------------------------------------------

0 standalone standalone

Dell#

2 Change IOA mode to PMUX mode.

Dell(conf)# stack-unit 0 iom-mode programmable-mux

Where stack-unit 0 defines the default stack-unit number.

3 Delete the startup configuration file.

Dell# delete startup-config

PMUX Mode of the IO Aggregator 907