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

Installing and configuring Neutron services

In this installation, the various services that make up OpenStack Networking will be installed on the controller node rather than a dedicated networking node. The compute nodes will run L2 agents that interface with the controller node and provide virtual switch connections to instances.


Remember that the configuration settings recommended here and online at may not be appropriate for production systems.

To install the Neutron API server, the DHCP and metadata agents, and the ML2 plugin on the controller, issue the following command:

# apt-get install neutron-server neutron-dhcp-agent \
neutron-metadata-agent neutron-plugin-ml2 neutron-common \

On the compute nodes, only the ML2 plugin is required:

# apt-get install neutron-plugin-ml2

Creating the Neutron database

Using the mysql client, create the Neutron database and associated user. When prompted for the root password, use openstack:

# mysql –u root –p...