Gartner Research

Network Design Best Practices for Office 365

Published: 22 March 2018

ID: G00351444

Analyst(s): Andrew Lerner , Neil Rickard


Many organizations are evaluating or deploying Microsoft Office 365. However, in most cases, existing internet connectivity will not provide adequate performance. This research describes how I&O leaders responsible for network planning can improve their network agility to successfully support O365.

Table Of Contents
  • Key Challenges


  • Office 365 Application Architectures
  • Microsoft's Office 365 Connectivity Architecture
  • Hybrid Office 365/On-Premises Deployments


  • Maximize Office 365 Performance by Selecting the Office 365 Geo(s) That Minimize the Average Distance to the Users
  • Reduce the Risk of Poor Office 365 Performance by Planning for Incremental Network Investments
    • Leverage Microsoft's Tools and Best Practices to Calculate Bandwidth for Existing Applications Moving to Office 365
    • Pilot and Monitor Real Users via Third-Party Tools to Determine Appropriate Bandwidth for New Office 365 Applications
    • Plan for Additional Capacity for Data Migration
    • Availability and Latency Matter Too
  • Optimize Office 365 Performance by Selecting the Appropriate Connectivity Option Based on Geographic Distribution, Cost and Application-Performance Goals
  • Improve Office 365 Performance When Latency Is High or Bandwidth Constrained by Using WAN Optimization

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?

Purchase this Document

To purchase this document, you will need to register or sign in above

Become a client

Learn how to access this content as a Gartner client.