Book Image

Diving into Secure Access Service Edge

By : Jeremiah
Book Image

Diving into Secure Access Service Edge

By: Jeremiah

Overview of this book

The SASE concept was coined by Gartner after seeing a pattern emerge in cloud and SD-WAN projects where full security integration was needed. The market behavior lately has sparked something like a "space race" for all technology manufacturers and cloud service providers to offer a "SASE" solution. The current training available in the market is minimal and manufacturer-oriented, with new services being released every few weeks. Professional architects and engineers trying to implement SASE need to take a manufacturer-neutral approach. This guide provides a foundation for understanding SASE, but it also has a lasting impact because it not only addresses the problems that existed at the time of publication, but also provides a continual learning approach to successfully lead in a market that evolves every few weeks. Technology teams need a tool that provides a model to keep up with new information as it becomes available and stay ahead of market hype. With this book, you’ll learn about crucial models for SASE success in designing, building, deploying, and supporting operations to ensure the most positive user experience (UX). In addition to SASE, you’ll gain insight into SD-WAN design, DevOps, zero trust, and next-generation technical education methods.
Table of Contents (28 chapters)
1
Part 1 – SASE Market Perspective
7
Part 2 – SASE Technical Perspective
15
Part 3 – SASE Success Perspective
20
Part 4 – SASE Bonus Perspective
Appendix: SASE Terms

SD-What

SD-WAN stands for Software-Defined Wide Area Network. The SD-WAN replaces the routed WAN with a software-defined network solution. Simply said, SD-WAN replaces routers with next-generation technology for secure, site-to-site network communications.

SD-WAN breaks down network communications into separate logical planes of function. This is a further abstraction from existing manufacturer data and control plane separation, which focuses more on the physical allocation of resources. The SD-WAN solution takes advantage of separate logical control and data planes to allow for the specialization of each solution component or module. A routing protocol forwards traffic with the data as a payload and the control function is embedded. SD-WAN functionality forwards data in a per-packet or per-flow steering direction given by the controller based on policy. This separation between planes allows for independence of operation, resilience in communications, rapid changes, real-time security...