Linux Bond Guide

Preface

This document outlines how to access and use the service on Cloudmylab infrastructure.

Audience

This document is intended for use by Cloudmylab Customer. It can be used by anyone working in the Information Technology Sector.

Scope

The scope of this document is to specifically ensure that the user understands how to configure bonded interfaces for Ubuntu Desktop 20.04

Process

STEP 1: Create your Ubuntu 20.04 Node with at least 2x Ethernet devices.

STEP 2: Connect your Ubuntu node to the respective network device(s).  Configuring the network device is out of scope for this tutorial.  It will be assumed that LACP is configured on the network device(s) for the remainder of this tutorial.

STEP 4: Select the option to  Add another interface.

STEP 5: For the type select  Bond under the  Virtual interface types.

STEP 9: Change the Bond  Mode field to  802.3ad to enable LACP on the bonded links and press  Save.

STEP 11: Select the  IPv4 (or v6) Settings tab and configure your interface as required and save once completed.

STEP 12: It is recommended to use the  Delete  button remove the original  Wired connection 1 or 2.   The Final result is show below.

Common Troubleshooting

No LACPPDUs are sent by the Linux VM.

1) A Common cause that prevents LACPPDUs from transmitting is if the link speed is unable to be automatically negotiated on the member interfaces. Manually setting the link speed         and restarting the networking stack/rebooting should resolve this case.  Be sure to update all member interfaces.

This can be verified by using the bond0 interface check from step 14 shows Unknown for the Speed of the member.

2) Verify the mode is set to  802.3ad for the  master interface.