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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
10
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

Fundamentals of load balancing

There are three major components to a load balancer in Neutron:

  • Pool member(s)

  • Pool(s)

  • Virtual IP(s)

A pool member is a layer 4 object and is composed of the IP address of a service and the listening port of the service. For example, a pool member might be a web server with a configured IP address, 10.30.0.2, listening on TCP port 80.

A pool is a group of pool members that typically serve identical content. A pool composed of web servers, for example, may resemble the following membership:

  • Server A: 10.30.0.2:80

  • Server B: 10.30.0.4:80

  • Server C: 10.30.0.6:80

A virtual IP, or VIP, is an IP address that resides on the load balancer and listens for incoming connections. The load balancer then balances client connections among the members of the associated pool. A virtual IP is usually exposed to the Internet and is often mapped to a domain name.

Load balancing algorithms

In Havana, the following load balancing algorithms can be applied to a pool:

  • Round robin

  • Least connections...

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