Network planning and performance tuning for Microsoft 365

Before you deploy for the first time or migrate to Microsoft 365, you can use the information in these articles to estimate the bandwidth you need and then to test and verify that you have enough bandwidth to deploy or migrate to Microsoft 365. For an overview, see: Network and migration planning for Microsoft 365.

Category	Description	Category	Description
Network planning	Want fast connections and pages that load quickly? Read Getting the best connectivity and performance in Microsoft 365. Read Microsoft 365 Network Connectivity Overview to understand concepts.	Measuring your network	Read Microsoft 365 performance tuning using baselines and performance history and Performance troubleshooting plan for Microsoft 365. Use these tools to evaluate your existing network.
Best practices	Best practices for network planning and improving migration performance for Microsoft 365. Want to get started helping your users right away? See Best practices for using Office 365 on a slow network. Microsoft 365 Network Connectivity Principles will help you understand the most recent guidance for securely optimizing Microsoft 365 network connectivity.	Reference	Want the details, like a list of IP addresses and ports? See the Network planning reference for Microsoft 365.
	For the steps to optimize your network for Microsoft 365 and other Microsoft cloud platforms and services, see the Microsoft Cloud Networking for Enterprise Architects poster.

Performance tuning and troubleshooting resources for Microsoft 365

Once you have Microsoft 365 deployed, you can optimize your performance by using the articles in this section. If you experience performance degradation you can also use these articles to troubleshoot issues.

For information about using network address translation with Office 365, see NAT support with Office 365. Also, take a look at the top 10 tips for optimizing and troubleshooting your Office 365 network connectivity.

Tune Exchange Online performance: Use these articles to fine tune Exchange Online performance.

Prepare your organization's network for Microsoft Teams: Use these articles to optimize your network for Teams.

Tune Skype for Business Online performance: Use these articles to fine tune Skype for Business Online performance.

Tune SharePoint performance: Use these articles to fine tune SharePoint performance.

Tune Project Online performance: Use this article to fine tune Project Online performance.