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  • Book Overview & Buying LEARNING OPENSTACK NETWORKING (NEUTRON)
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LEARNING OPENSTACK NETWORKING (NEUTRON)

LEARNING OPENSTACK NETWORKING (NEUTRON)

By : James Denton
4.2 (17)
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LEARNING OPENSTACK NETWORKING (NEUTRON)

LEARNING OPENSTACK NETWORKING (NEUTRON)

4.2 (17)
By: James Denton
Buy this Book

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.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Preparing the Network for OpenStack
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1. Preparing the Network for OpenStack
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What is OpenStack Networking?
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Preparing the physical infrastructure
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Physical server connections
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Summary
2
2. Installing OpenStack
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2. Installing OpenStack
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System requirements
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Before you begin
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Installation of OpenStack
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Summary
3
3. Installing Neutron
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3. Installing Neutron
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Basic Neutron constructs
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Installing and configuring Neutron services
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Configuring Neutron services
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Summary
4
4. Building a Virtual Switching Infrastructure
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4. Building a Virtual Switching Infrastructure
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Providing layer 2 connectivity to instances
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Types of networks in Neutron
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Choosing a networking plugin
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Configuring a layer 2 networking plugin
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Summary
5
5. Creating Networks with Neutron
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5. Creating Networks with Neutron
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Network management
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Attaching instances to networks
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Exploring how instances get their addresses
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Exploring how instances retrieve their metadata
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Summary
6
6. Creating Routers with Neutron
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6. Creating Routers with Neutron
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Configuring the Neutron L3 agent
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Router management in the CLI
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Network Address Translation
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Floating IP Management
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Demonstrating traffic flow from instance to Internet
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Router management in the dashboard
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Summary
7
7. Load Balancing Traffic in Neutron
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7. Load Balancing Traffic in Neutron
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Fundamentals of load balancing
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Integrating load balancers into the network
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Installing LBaaS
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Load balancer management in the CLI
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Building a load balancer
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Load balancer management in the dashboard
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Summary
8
8. Protecting Instances on the Network
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8. Protecting Instances on the Network
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Security groups in OpenStack
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Firewall-as-a-service
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Introducing iptables
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Working with security groups
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Working with FWaaS
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Firewall rules – behind the scenes
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Summary
9
A. Additional Neutron Commands
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A. Additional Neutron Commands
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Neutron extensions
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Virtual private networks
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Per-tenant quotas
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Cisco Nexus 1000V command reference
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VMware/Nicera command reference
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B. ML2 Configuration
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B. ML2 Configuration
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Installing the ML2 plugin
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Configuring the ML2 plugin
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Index
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Index

Providing layer 2 connectivity to instances

Neutron and Nova work in tandem to configure networking on physical servers in the cloud. The LinuxBridge and Open vSwitch plugins provide both Neutron and Nova with the methods to provide connectivity to instances and other network resources.

Virtual network interfaces

By default, OpenStack leverages KVM, a kernel-based virtual machine, to provide a virtualization infrastructure to the Linux kernel that utilizes the hardware virtualization features of various processors.

When an instance is booted for the first time, a virtual network interface is created on the host that is referred to as a tap interface. The tap interface corresponds directly to a network interface within the guest instance. This action results in the host exposing the guest instance to the physical network.

In OpenStack, the name of the tap interface corresponds to the Neutron port UUID, or unique identifier, that the instance is plugged in to. The correlation of the tap interface...

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