Gartner Research

Segmentation or Isolation: Implementing Best Practices for Connecting ‘All’ Devices

Published: 26 September 2019

ID: G00388335

Analyst(s): Tim Zimmerman


A wide range of new devices are being connected to enterprise networks, often without official knowledge or authorization. Infrastructure and operations leaders must establish categorization, segmentation and isolation policies to avoid disaster.

Table Of Contents
  • Key Challenges



  • Create a Device Certification Process for all Devices Passed by “Every” Device
  • Place “All” Devices Into One of Four Risk Categories
    • Corporate Devices
    • Guest Devices or BYOD
    • Trusted or Known IoT Devices
    • Untrusted or Unknown Devices
  • Architect a Virtual Segmentation Strategy for Segmented or Isolated Requirements Across Multivendor Campus Networks
    • Implement Segmentation
    • Standards-Based Segmentation for Multivendor Networks Requires Testing and Limited Encryption Options
    • Isolation May Be Needed in Addition to Segmentation

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.