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


IPSec is a suite of protocols, standards, and security algorithms that help secure traffic over unsecure and untrusted networks, such as the Internet. RFCs 4301 and 4309 describe IPSec in much more detail than covered here and can be found at the following locations:

The use of virtual private networks to securely transfer data among tenant and remote networks is a viable and recommended alternative to exposing the instances directly through the use of floating IPs. In this chapter, I demonstrated creating a VPN between two Neutron routers. Depending on the driver, it is possible to create tunnels between Neutron routers and physical VPN gateways, such as the Cisco ASA, Juniper SRX, and others.

As of Kilo, VPNaaS is no longer considered experimental. However, proposals to change the API to extend functionality are submitted, which may deprecate the methods and commands described here. Be sure to reference the OpenStack...