Book Image

OpenStack Networking Essentials

By : James Denton, Derek Chamorro
Book Image

OpenStack Networking Essentials

By: James Denton, Derek Chamorro

Overview of this book

The OpenStack Networking API offers users the ability to create and manage both basic and complex network architectures that blend the virtual and physical network infrastructure. This book kicks off by describing various components of Openstack Neutron and installing Ubuntu OpenStack based on Canonical's process. Further on, you will use various methods to interface with Neutron to create and manage network resources. You will also get to grips with the relationship between ports, networks, and subnets through diagrams and explanations, and see how the logical components are implemented via plugins and agents. Moving forward, you will learn how virtual switches are implemented and how to build Neutron routers. You will also configure networks, subnets, and routers to provide connectivity to instances using simple examples. At the end, you will configure and manage security groups, and will observe how these rules translate to iptables rules on the host machines. By the end of the book, you will be able to build basic network architectures using Neutron networks and routers in no time.
Table of Contents (15 chapters)
OpenStack Networking Essentials
Credits
About the Author
www.PacktPub.com
Preface
Index

Managing routers in the dashboard


Like networks, virtual routers can be created and managed within the Horizon dashboard and by using the Neutron command-line client.

Creating routers within a project

To create a router, follow these steps:

  1. Navigate to the Project | Network | Routers section of the Horizon dashboard and click on the Create Router button in the upper right-hand corner of the screen, as shown here:

  2. A single-step router creation wizard will appear. Name the router in the Router Name field, as shown here:

  3. Click on the Create Router button to complete the wizard and return to the Routers screen, as shown in the following screenshot:

Congratulations, you just created a virtual router! Behind the scenes, Neutron has determined the type of router to create and may have implemented one or more network namespaces as a result. In this environment, the default router type is standalone, which means a single network namespace will be created that will serve as the virtual router. In Chapter...