Book Image

Learning OpenStack Networking (Neutron)

By : James Denton
Book Image

Learning OpenStack Networking (Neutron)

By: James Denton

Overview of this book

OpenStack Neutron is an OpenStack component that provides networking as a service for other OpenStack services to architect networks and create virtual machines through its API. This API lets you define network connectivity in order to leverage network capabilities to cloud deployments. Through this practical book, you will build a strong foundational knowledge of Neutron, and will architect and build an OpenStack cloud using advanced networking features. We start with an introduction to OpenStack Neutron and its various components, including virtual switching, routing, FWaaS, VPNaaS, and LBaaS. You’ll also get hands-on by installing OpenStack and Neutron and its components, and use agents and plugins to orchestrate network connectivity and build a virtual switching infrastructure. Moving on, you’ll get to grips with the HA routing capabilities utilizing VRRP and distributed virtual routers in Neutron. You’ll also discover load balancing fundamentals, including the difference between nodes, pools, pool members, and virtual IPs. You’ll discover the purpose of security groups and learn how to apply the security concept to your cloud/tenant/instance. Finally, you' ll configure virtual private networks that will allow you to avoid the use of SNAT and floating IPs when connecting to remote networks.
Table of Contents (21 chapters)
Learning OpenStack Networking (Neutron) Second Edition
About the Author
About the Reviewers

Neutron extensions

Neutron extensions allow a plugin to extend the Neutron API to provide advanced functionality or expose a capability before it is incorporated into the official API.

Listing the Neutron API extensions

To list the extensions available in Neutron, use the Neutron ext-list command, as follows:

Usage:   ext-list

The returned output includes a list of the available extensions, as shown in the following screenshot:

Figure A.1

Showing the details of an API extension

To show the details of an API extension, use the Neutron ext-show command, as follows:

Usage:   ext-show EXTENSION_ALIAS

Here, the keyword EXTENSION_ALIAS represents the alias of the extension provided in the ext-list output. The returned output includes the alias, description, name, namespace, and updated date of the specified extension.

To find more information on creating Neutron API extensions, visit the Neutron development Wikipedia page at the following location: