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 has seen major internal architectural improvements over the last few releases. These improvements have made developing and implementing network features easier for developers and operators, respectively. Neutron maintains the logical network architecture in its database, and network plugins and agents on each node are responsible for configuring virtual and physical network devices accordingly. With the introduction of the ML2 plugin, developers can spend less time implementing the core Neutron API functionality and more time developing value-added features.

Now that OpenStack Networking services have been installed across all nodes in the environment, configuration of a layer 2 networking plugin is all that remains before instances can be created.

In the next chapter, you will be guided through the configuration of the ML2 plugin and both the LinuxBridge and Open vSwitch network agents. We will also explore the differences between LinuxBridge and Open vSwitch in terms of how...