Gartner Research

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

Published: 28 March 2018

ID: G00347928

Analyst(s): Simon Richard

Summary

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

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