Prior to the introduction of Neutron in the Folsom release of OpenStack, all network management was built in to the Nova API and was known as nova-network. Nova-network provided floating IP functionality, and network failure domains were limited to an individual compute node – something that was lacking in the early releases of Neutron. Nova-network has since been deprecated and most of its functionality has been implemented and improved upon in the latest releases of Neutron. In the last chapter, we looked at using VRRP to provide high-availability using active-standby routers. In this chapter, we will look at how distributed virtual routers borrow many concepts from the nova-network multi-host model to provide high-availability and smaller network failure domains while retaining support for many of the advanced networking features provided...
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Table Of Contents
Learning OpenStack Networking - Third Edition
By :
Learning OpenStack Networking
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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)
Preface
Free Chapter
Introduction to OpenStack Networking
Installing OpenStack
Installing Neutron
Virtual Network Infrastructure Using Linux Bridges
Building a Virtual Switching Infrastructure Using Open vSwitch
Building Networks with Neutron
Attaching Instances to Networks
Managing Security Groups
Role-Based Access Control
Creating Standalone Routers with Neutron
Router Redundancy Using VRRP
Distributed Virtual Routers
Load Balancing Traffic to Instances
Advanced Networking Topics
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