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You're reading from Learning OpenStack Networking Build a solid foundation in virtual networking technologies for OpenStack-based clouds

Product type Paperback

Published in Aug 2018

Publisher Packt

ISBN-13 9781788392495

Length 462 pages

Edition 3rd Edition

Languages

Python

Tools

Neutron

Concepts

Cloud Computing

Author (1):

James Denton

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Table of Contents (21) Chapters

Title Page

Packt Upsell

Contributors

Preface

1. Introduction to OpenStack Networking FREE CHAPTER

2. Installing OpenStack

3. Installing Neutron

4. Virtual Network Infrastructure Using Linux Bridges

5. Building a Virtual Switching Infrastructure Using Open vSwitch

6. Building Networks with Neutron

7. Attaching Instances to Networks

8. Managing Security Groups

9. Role-Based Access Control

10. Creating Standalone Routers with Neutron

11. Router Redundancy Using VRRP

12. Distributed Virtual Routers

13. Load Balancing Traffic to Instances

14. Advanced Networking Topics

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Index

Installing and configuring Neutron components

To configure distributed virtual routers, there are a few requirements that must be met, including the following:

ML2 plugin
L2 population mechanism driver
Open vSwitch mechanism driver
Layer 3 agent installed on all networks and compute nodes

In the environment built out in this book, a single controller node handles OpenStack API services, DHCP and metadata services, and runs the Linux bridge agent for use with standalone and HA routers. compute01 runs the Linux bridge agent, while compute02 and compute03 run the Open vSwitch agent. Another node, snat01, will run the Open vSwitch agent and be responsible for outbound SNAT traffic when distributed virtual routers are used.

A diagram of this configuration can be seen here:

While the mixing of drivers and agents between nodes is possible thanks to the ML2 core plugin, a design like this is not typical in a production environment. Instances deployed on compute01 may experience connectivity issues if deployed...