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

Initial steps

Before we can install OpenStack, some work must be done to prepare the system for a successful installation.

Updating the system

Before packages can be downloaded, run the following apt-get command to update package lists on all hosts:

# apt-get update


OpenStack services can be installed either as root or as a user with sudo permissions. The latter may require that the user be added to the sudoers file on each host. For tips on configuring sudoers, visit


For this installation, all commands should be run as root, unless specified otherwise.

Configuring the OpenStack repository

Installation of OpenStack on Ubuntu 14.04 LTS uses packages from the Ubuntu Cloud Archive repository when installing versions of OpenStack that are newer than what the operating system shipped with. To enable the Cloud Archive repository, download and install the Ubuntu-cloud-keyring package on all hosts:

# apt-get install ubuntu-cloud-keyring