PowerEdge: How to Configure and Change FX2/FX2S IO Aggregator Switch Programmable MUX Modes

Summary: This article explains what Programmable MUX mode is and how to configure and change to that mode from the default standalone mode.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
Check out other resources

Instructions


Objectives

  1. Overview
  2. Configuring and Changing to Programmable MUX (PMUX) mode



Overview

IOA PMUX is a mode that provides flexibility of operation with added configurability. This is done by 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 running the following commands and then reloading the IOA. After the IOA reboots, the IOA operates in PMUX mode. PMUX mode supports both stacking or VLT operations.


Configuring and Changing to Programmable MUX (PMUX) mode:

Commands Parameters
FX2/FX2S_CMC$ connect switch-1 SSH into the IP address of the CMC on the FX2/FX2S chassis, and run the command to connect to the IOA.
Login: username
Password: *****
Dell> enable
Dell# show system stack-unit 0 iom-mode
Unit Boot-Mode Next-Boot
-----------------------------------------------
standalone standalone		 Log in to the IOA switch and view the next-boot mode.
Dell# configure
Dell(conf)# stack-unit 0 iom-mode programmable-mux		 Enter configuration mode. Change IOA mode to PMUX mode.
Dell# delete startup-config Delete the startup configuration file.
Dell# reload Reboot the IOA by entering the reload command.
Dell# show system stack-unit 0 iom-mode
Unit Boot-Mode Next-Boot
------------------------------------------------
0 programmable-mux programmable-mux		 Verify the current functional mode after switch boots.

Affected Products

PowerEdge FX2/FX2s, PowerEdge M IO Aggregator
Article Properties
Article Number: 000121882
Article Type: How To
Last Modified: 05 Jun 2025
Version:  8
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.