Book Image

Learning VMware NSX - Second Edition

By : Ranjit Singh Thakurratan
Book Image

Learning VMware NSX - Second Edition

By: Ranjit Singh Thakurratan

Overview of this book

VMware NSX is a platform for the software-defined data center. It allows complex networking topologies to be deployed programmatically in seconds. SDNs allow ease of deployment, management, and automation in deploying and maintaining new networks while reducing and in some cases completely eliminating the need to deploy traditional networks. The book allows you a thorough understanding of implementing Software defined networks using VMware’s NSX. You will come across the best practices for installing and configuring NSX to setup your environment. Then you will get a brief overview of the NSX Core Components NSX’s basic architecture. Once you are familiar with everything, you will get to know how to deploy various NSX features. Furthermore, you will understand how to manage and monitor NSX and its associated services and features. In addition to this, you will also explore the best practices for NSX deployments. By the end of the book, you will be able to deploy Vmware NSX in your own environment with ease. This book can come handy if you are preparing for VMware NSX certification.
Table of Contents (17 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

VXLAN architecture overview

One of the most important functions of NSX is enabling virtual networks. These virtual networks or overlay networks have become very popular due to that fact that they can leverage an existing network infrastructure without the need to modify it in any way. The decoupling of logical networks from the physical infrastructure allows users to scale rapidly. Overlay networks or VXLANs were developed by a host of vendors that include Arista, Cisco, Citrix, Red Hat, and Broadcom. This allows the VXLAN standard to be implemented by multiple vendors due to this joint effort in developing its architecture.

VXLAN is a layer 2 over layer 3 tunneling protocol that allows for logical network segments to extend on routable networks. This is achieved by encapsulating the Ethernet frame with additional UPD, IP, and VXLAN headers. Consequently, this increases the size of the packet by 50 bytes. Hence, VMware recommends increasing the MTU size to a minimum of 1,600 bytes for all...