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LEARNING OPENSTACK NETWORKING (NEUTRON)

By : James Denton
Book Image

LEARNING OPENSTACK NETWORKING (NEUTRON)

By: James Denton

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LEARNING OPENSTACK NETWORKING (NEUTRON)
James Denton
Oct, 2014 | 300 pages
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Table of Contents (17 chapters)
Learning OpenStack Networking (Neutron)
Learning OpenStack Networking (Neutron)
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Preparing the Network for OpenStack
Preparing the Network for OpenStack
What is OpenStack Networking?
Preparing the physical infrastructure
Physical server connections
Summary
2
Installing OpenStack
Installing OpenStack
System requirements
Before you begin
Installation of OpenStack
Summary
3
Installing Neutron
Installing Neutron
Basic Neutron constructs
Installing and configuring Neutron services
Configuring Neutron services
Summary
4
Building a Virtual Switching Infrastructure
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
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
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
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
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
Additional Neutron Commands
Additional Neutron Commands
Neutron extensions
Virtual private networks
Per-tenant quotas
Cisco Nexus 1000V command reference
VMware/Nicera command reference
ML2 Configuration
ML2 Configuration
Installing the ML2 plugin
Configuring the ML2 plugin
Index
Index

Configuring the Neutron L3 agent

Before the neutron-l3-agent service can be started, it must be configured. Neutron stores the L3 agent configuration in the /etc/neutron/l3_agent.ini file. The most common configuration options will be covered here.

Defining an interface driver

Like previously installed agents, the Neutron L3 agent must be configured to use an interface driver that corresponds to the chosen networking plugin.

Using crudini, configure the Neutron L3 agent to use one of the following drivers:

  • For LinuxBridge:

    # crudini --set /etc/neutron/l3_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.BridgeInterfaceDriver

  • For Open vSwitch:

    # crudini --set /etc/neutron/l3_agent.ini DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver

Setting the external network

The external network connected to a router is one that not only provides external connectivity to the router and the instances behind it, but also serves as the network from which floating IPs are...

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