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

Design Overview

Zero is the most appropriate starting place with SASE design. Leveraging a ZTF-based design allows all additional security services to increase in value as implemented. SASE can be implemented one service at a time as needed. Each service must leverage interlocking and supporting policies so that no one service defeats the overall design.

ZTF starts with zero, which means all ports and systems are blocked until the access policy is met. As each attribute passes each test of the policy, resources are unlocked for the device, user, or system to make use of. The design must allow additional generations of secure services to integrate without reducing security or performance benefits.

Many organizations will start implementation with SD-WAN as it provides a direct replacement for the previous site-to-site communication solutions such as routed MPLS, point-to-point IPSEC tunnels, and other legacy solutions. SD-WAN provides API solutions to integrate with ZTF. SD-WAN...