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Learning OpenStack Networking

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

Copyright and Credits

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

Networking of highly available routers

When a highly-available router is created, Neutron creates a VRRP group composed of at least two router namespaces by default. The namespaces are spread across multiple hosts running the Neutron L3 agent, and each runs the keepalived service with an automatically generated configuration. Traffic between the routers uses a dedicated network interface, which is discussed in the following section.

Dedicated HA network

Routers in a VRRP group communicate among one another over a dedicated HA network. An HA router is automatically configured with an interface prefixed with that is only used for this communication.

The first time an HA router is created in a project, Neutron configures a network and subnet using the CIDR 169.254.192.0/18. The network type used is based on the default project network type. Only one HA network is created per project, and it is used by all HA routers that are created by that project. If all HA routers in a project are deleted,...

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Authors (1)

James Denton

James Denton

James Denton is a Principal Architect at Rackspace with over 15 years of experience in systems administration and networking. He has a bachelor's degree in Business Management with a focus on Computer Information Systems from Texas State University in San Marcos, Texas. He is currently focused on OpenStack operations and support within the Rackspace Private Cloud team. James is the author of the Learning OpenStack Networking (Neutron), first and second editions, as well as OpenStack Networking Essentials, both by Packt Publishing.

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