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LEARNING OPENSTACK NETWORKING (NEUTRON)

By : James Denton

4.2 (17)

LEARNING OPENSTACK NETWORKING (NEUTRON)

4.2 (17)

By: James Denton

Overview of this book

If you are an OpenStack-based cloud operator with experience in OpenStack Compute and nova-network but are new to Neutron networking, then this book is for you. Some networking experience is recommended, and a physical network infrastructure is required to provide connectivity to instances and other network resources configured in the book.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Preparing the Network for OpenStack

1. Preparing the Network for OpenStack

What is OpenStack Networking?

Preparing the physical infrastructure

Physical server connections

Summary

2. Installing OpenStack

2. Installing OpenStack

System requirements

Before you begin

Installation of OpenStack

Summary

3. Installing Neutron

3. Installing Neutron

Basic Neutron constructs

Installing and configuring Neutron services

Configuring Neutron services

Summary

4. Building a Virtual Switching Infrastructure

4. Building a Virtual Switching Infrastructure

Providing layer 2 connectivity to instances

Types of networks in Neutron

Choosing a networking plugin

Configuring a layer 2 networking plugin

Summary

5. Creating Networks with Neutron

5. Creating Networks with Neutron

Network management

Attaching instances to networks

Exploring how instances get their addresses

Exploring how instances retrieve their metadata

Summary

6. Creating Routers with Neutron

6. Creating Routers with Neutron

Configuring the Neutron L3 agent

Router management in the CLI

Network Address Translation

Floating IP Management

Demonstrating traffic flow from instance to Internet

Router management in the dashboard

Summary

7. Load Balancing Traffic in Neutron

7. Load Balancing Traffic in Neutron

Fundamentals of load balancing

Integrating load balancers into the network

Installing LBaaS

Load balancer management in the CLI

Building a load balancer

Load balancer management in the dashboard

Summary

8. Protecting Instances on the Network

8. Protecting Instances on the Network

Security groups in OpenStack

Firewall-as-a-service

Introducing iptables

Working with security groups

Working with FWaaS

Firewall rules – behind the scenes

Summary

A. Additional Neutron Commands

A. Additional Neutron Commands

Neutron extensions

Virtual private networks

Per-tenant quotas

Cisco Nexus 1000V command reference

VMware/Nicera command reference

B. ML2 Configuration

B. ML2 Configuration

Installing the ML2 plugin

Configuring the ML2 plugin

Index

Index

Customer Reviews

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Choosing a networking plugin

Neutron networking plugins are responsible for implementing features that provide network connectivity to and from instances. The two plugins discussed in this book, LinuxBridge and Open vSwitch, implement those features in different ways.

LinuxBridge

When configured to utilize the LinuxBridge networking plugin, Neutron relies on the bridge and 8021q kernel modules to properly connect instances and other network resources to the virtual switch and forward traffic.

In a LinuxBridge-based network implementation, there are three distinct types of virtual networking devices:

Tap devices
VLAN interfaces
Linux bridges

A tap device is how a hypervisor such as KVM implements a virtual network interface card. These virtual interfaces on the host correspond to an interface inside the guest instance. An Ethernet frame sent to the tap device is received by the guest operating system.

Linux supports 802.1q VLAN tagging through the use of virtual VLAN interfaces. The kernel can...

Visually different images

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