Book Image

Learning OpenStack Networking - Third Edition

By : James Denton
Book Image

Learning OpenStack Networking - Third Edition

By: James Denton

Overview of this book

OpenStack Networking is a pluggable, scalable, and API-driven system to manage physical and virtual networking resources in an OpenStack-based cloud. Like other core OpenStack components, OpenStack Networking can be used by administrators and users to increase the value and maximize the use of existing datacenter resources. This third edition of Learning OpenStack Networking walks you through the installation of OpenStack and provides you with a foundation that can be used to build a scalable and production-ready OpenStack cloud. In the initial chapters, you will review the physical network requirements and architectures necessary for an OpenStack environment that provide core cloud functionality. Then, you’ll move through the installation of the new release of OpenStack using packages from the Ubuntu repository. An overview of Neutron networking foundational concepts, including networks, subnets, and ports will segue into advanced topics such as security groups, distributed virtual routers, virtual load balancers, and VLAN tagging within instances. By the end of this book, you will have built a network infrastructure for your cloud using OpenStack Neutron.
Table of Contents (16 chapters)

Router Redundancy Using VRRP

In the Juno release of OpenStack, the Neutron community introduced two methods of attaining high availability in routing. This chapter focuses on a method that uses the Virtual Routing Redundancy Protocol, also known as VRRP, to implement redundancy between two or more Neutron routers. High availability using distributed virtual routers, otherwise known as DVR, will be discussed in Chapter 12, Distributed Virtual Routers.

In the previous chapter, we explored the concept of standalone routers and how they allow users to route traffic between project networks and external networks as well as provide network address translation for instances managed by the user. In this chapter, we will cover the following topics:

  • High availability of routing using keepalived and VRRP
  • Installing and configuring additional L3 agents
  • Demonstrating the creation and management...