1 Introduction to the Multus Module

Important:

The software described in this documentation is either in Extended Support or Sustaining Support. See Oracle Open Source Support Policies for more information.

We recommend that you upgrade the software described by this documentation as soon as possible.

Multus is a Container Network Interface (CNI) plugin for Kubernetes. Unlike other CNI plugins, Multus doesn't implement pod networking. Multus is a multiplexer for other CNI plugins. By using Multus, it's possible to attach many network interfaces to a single pod.

Multus creates a networking bridge to either Flannel or Calico. For more information on Multus, see the upstream Multus documentation.

You can create NetworkAttachmentDefinitions using a Multus configuration file during the Multus module installation, or you can create NetworkAttachmentDefinitions after the module is deployed using the kubectl command.