Gartner Research

How to Optimize Your Wide-Area Network for Hybrid and Multicloud

Published: 28 March 2018

ID: G00347928

Analyst(s): Simon Richard


Before cloud, enterprises optimized their WANs for data center connectivity. Today, IaaS, SaaS and public PaaS services are the focal points. This document shows technical professionals how to build WANs for the cloud using technologies like SD-WAN and emerging network services.

Table Of Contents

Problem Statement

The Gartner Approach

The Guidance Framework

  • Prework
  • Architect the Transport Layer and Cloud Access
    • Private or Public?
    • Distributing Internet Access Points to Reduce Latency
    • Cloud Interconnect
    • Other Features of Colocation Hubs
    • Connecting to Virtual Private Clouds
  • Modernize Your WAN Access
    • SD-WAN Technology Description
    • SD-WAN and Cloud Networking
    • What to Look for in an SD-WAN Solution
  • Evolve the Service Layer
    • NFV and VCPE
    • Types of Services
  • Follow Up

Risks and Pitfalls

  • Inertia and Network Incrementalism
  • Not Linking Back to the Cloud Strategy Requirements or to an Abrupt Change in Business Strategy
  • Buy-In From the Operations Team
  • Security
  • Not Thinking Multicloud
  • Carrier Lock-In
  • Not Thinking Strategically About Your WAN Edge
  • Related Guidance

Gartner Recommended Reading

©2021 Gartner, Inc. and/or its affiliates. All rights reserved. Gartner is a registered trademark of Gartner, Inc. and its affiliates. This publication may not be reproduced or distributed in any form without Gartner’s prior written permission. It consists of the opinions of Gartner’s research organization, which should not be construed as statements of fact. While the information contained in this publication has been obtained from sources believed to be reliable, Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartner research may address legal and financial issues, Gartner does not provide legal or investment advice and its research should not be construed or used as such. Your access and use of this publication are governed by Gartner’s Usage Policy. Gartner prides itself on its reputation for independence and objectivity. Its research is produced independently by its research organization without input or influence from any third party. For further information, see Guiding Principles on Independence and Objectivity.

Already have a Gartner Account?

Become a client

Learn how to access this content as a Gartner client.