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)

Network availability zones

A network availability zone is a logical construct used to define a group of network nodes that share similar power, network, and cooling systems. Network resources can be scheduled to multiple availability zones to ensure a high level of reliability when a single zone fails. This is similar to how Nova availability zones work, as they as used to group compute nodes in a similar way to ensure components of an application are not in the same failure domain.

Configuring network availability zones

Availability zone support for Neutron was first introduced in the Mitaka release of OpenStack Networking, and supports both the DHCP and L3 agents included with Neutron. Other drivers may be supported but...