Book Image

VMware NSX Network Essentials

By : sreejith c
Book Image

VMware NSX Network Essentials

By: sreejith c

Overview of this book

VMware NSX is at the forefront of the software-defined networking revolution. It makes it even easier for organizations to unlock the full benefits of a software-defined data center – scalability, flexibility – while adding in vital security and automation features to keep any sysadmin happy. Software alone won’t power your business – with NSX you can use it more effectively than ever before, optimizing your resources and reducing costs. Getting started should be easy – this guide makes sure it is. It takes you through the core components of NSX, demonstrating how to set it up, customize it within your current network architecture. You’ll learn the principles of effective design, as well as some things you may need to take into consideration when you’re creating your virtual networks. We’ll also show you how to construct and maintain virtual networks, and how to deal with any tricky situations and failures. By the end, you’ll be confident you can deliver, scale and secure an exemplary virtualized network with NSX.
Table of Contents (15 chapters)
VMware NSX Network Essentials
Credits
Foreword
About the Author
About the Reviewer
www.PacktPub.com
Preface

The Distributed Logical Router


The whole purpose of routing is to process the packets between two different IP networks. Let's discuss the fundamentals of routing before getting into logical routers. Every router will build a routing table, which will have information about destination network, next hop router, metrics, and administrative distance. There are two methods of building a routing table:

  • Static routing: Static routing is manually created and updated by a network administrator. Based on the network topology, we will be in need of configuring a static route on each and every router for end-to-end network connectivity. Even though this gives full control over the routing, it would be an extremely tedious job to configure routes on a large network.

  • Dynamic routing: Dynamic routing is created and updated by a routing protocol running on a router; Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) are some examples. Dynamic routing protocols are intelligent enough...