Gartner Research

6 Critical Questions to Ask on SD-WAN

Published: 06 June 2018

ID: G00354225

Analyst(s): Mike Toussaint , Ted Corbett , Andrew Lerner


I&O leaders responsible for designing WANs are interested in SD-WAN products and services to improve branch resiliency and performance, and to reduce costs. In this research, we answer the most common client questions surrounding SD-WAN.

Table Of Contents
  • Key Challenges



  • Focusing on Specific Usage Scenarios and Refresh Cycles
    • Question 1 — What Is SD-WAN?
    • Question 2 — Is SD-WAN Ready for Production Deployment?
  • Calculate Savings and ROI Based on Multiple Factors
    • Question 3 — Can I Eliminate My MPLS Circuits With SD-WAN?
    • Question 4 — Will SD-WAN Save My Organization Money?
  • Pick One of Four Specific Secure SD-WAN Architectures When Deploying SD-WAN
    • Question 5 — What Are the Security Implications of SD-WAN?
    • Question 6 — Should We Deploy and Support SD-WAN Using Internal Resources or Use a Managed Network Service?

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