Book Image

Learning OpenStack Networking (Neutron)

By : James Denton
Book Image

Learning OpenStack Networking (Neutron)

By: James Denton

Overview of this book

OpenStack Neutron is an OpenStack component that provides networking as a service for other OpenStack services to architect networks and create virtual machines through its API. This API lets you define network connectivity in order to leverage network capabilities to cloud deployments. Through this practical book, you will build a strong foundational knowledge of Neutron, and will architect and build an OpenStack cloud using advanced networking features. We start with an introduction to OpenStack Neutron and its various components, including virtual switching, routing, FWaaS, VPNaaS, and LBaaS. You’ll also get hands-on by installing OpenStack and Neutron and its components, and use agents and plugins to orchestrate network connectivity and build a virtual switching infrastructure. Moving on, you’ll get to grips with the HA routing capabilities utilizing VRRP and distributed virtual routers in Neutron. You’ll also discover load balancing fundamentals, including the difference between nodes, pools, pool members, and virtual IPs. You’ll discover the purpose of security groups and learn how to apply the security concept to your cloud/tenant/instance. Finally, you' ll configure virtual private networks that will allow you to avoid the use of SNAT and floating IPs when connecting to remote networks.
Table of Contents (21 chapters)
Learning OpenStack Networking (Neutron) Second Edition
About the Author
About the Reviewers

Load balancer management in the CLI

Neutron offers a number of commands that can be used to create and manage virtual IPs, pools, pool members, and health monitors for load balancing purposes.

In version 1 of the LBaaS API, the pool is the root object to which all other load balancer resources are associated. The workflow to create a functional load balancer starts with creating a pool and then continues with creating and associating pool members, health monitors, and a virtual IP.

Managing pools in the CLI

The following commands are used to manage pools in the CLI:

  • lb-pool-create

  • lb-pool-delete

  • lb-pool-list

  • lb-pool-list-on-agent

  • lb-pool-show

  • lb-pool-stats

  • lb-pool-update

Creating a pool

A pool is a set of devices, such as web servers, that are grouped together to receive and process traffic. When traffic is sent to a virtual IP, the load balancer sends a request to any of the servers that are members of this pool.

To create a pool, use the Neutron lb-pool-create command, as follows:

Usage:    lb-pool...