1. Plan performance and bandwidth for Microsoft Office 365
Microsoft Ignite 2016
6/8/2018 4:30 PM
BRK3216
Plan performance and bandwidth for Microsoft Office 365
Ed Fisher Technology Solutions Professional
William Looney Principal Program Manager
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Agenda Connectivity requirements Calculating bandwidth requirements
6/8/2018 4:30 PM
Agenda
Connectivity requirements
TLS requirements
Concurrent connections
Bandwidth demands
Latency tolerances
Egress rules
Calculating bandwidth requirements
Bandwidth calculators
Overestimate approach
Extrapolation from pilot
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

3. Connectivity requirements

4. TLS requirements All client connectivity is encrypted.
We use third party CAs.
All clients will validate certificates.
OCSP/CRL endpoints are accessed over HTTP.
You need to allow for this traffic.

5. Concurrent connections
Modern Outlook versions will maintain at least three persistent connections for the primary mailbox.
Additional connections for shared, delegated, etc.

6. Concurrent connections
Browsers will open potentially dozens of connections for SharePoint Online, OWA, etc.
Co-authoring will use more connections.
A client using all services may consume >20 concurrent connections.

7. Bandwidth demands
You can never have too much money, pizza, or bandwidth.
But you can have enough of all three to get by.
Outlook-calculate
SharePoint Online-ever growing
OneDrive for Business-control
Skype for Business Online-calculate

8. Latency tolerances High latency is worse than low bandwidth.
Cached mode makes high latency and low bandwidth much more tolerable.
Most latency is caused by on-prem devices and decisions, or poor network architecture.
Optimize your name resolution and Internet egress to get to our network as quickly as you can.

9. Egress rules Control egress at layer 7, not at 3.
Permit all the required outbound ports (layer 4) to all the endpoints.
Almost all outbound traffic will be over TCP 443.
Skype for Business Online clients need the higher ports (TCP and UDP).

10. Calculating bandwidth requirements
6/8/2018 4:30 PM
Calculating bandwidth requirements
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11. Bandwidth calculators
Microsoft Ignite 2016
6/8/2018 4:30 PM
Bandwidth calculators
Client bandwidth calculators exist for both Outlook and Skype for Business clients.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12. Bandwidth calculators
Microsoft Ignite 2016
6/8/2018 4:30 PM
Bandwidth calculators
Client bandwidth calculators do not exist for SharePoint Online, OneDrive for Business, et al.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

13. Bandwidth calculators
Microsoft Ignite 2016
6/8/2018 4:30 PM
Bandwidth calculators
Calculators are great, if you have valid data to supply.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

14. DEMO Bandwidth Calculator 6/8/2018 4:30 PM
© 2014 Microsoft Corporation. All rights reserved. Microsoft, Windows, and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

15. Overestimate approach
Microsoft Ignite 2016
6/8/2018 4:30 PM
Overestimate approach
Use your current bandwidth figures for Exchange.
Consider how you will handle SMTP traffic
Use your current bandwidth figures for SharePoint.
Determine how much you will allow for OneDrive for Business and Skype for Business Online.
Round up to the next random number.
MSIT uses 400Kbps per user as a starting point.
Most of my customers have seen an average increase of ~20%.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

16. Extrapolation from pilot
Establish a pilot group that is a good representation of your user base.
Determine bandwidth usage before migration.
Determine increase after migration.
Extrapolate linearly.

17. Things which will hurt performance

18. Latency hurts more than bandwidth
Microsoft Ignite 2016
6/8/2018 4:30 PM
Latency hurts more than bandwidth
Things that increase latency decrease performance
Spoke and hub Internet egress
Bad DNS forwarding
Proxying clients
TLS inspection
Consider Office 365 an extension of your infrastructure
Get onto our network as close to your users & as soon as possible
If you must proxy, monitor for performance
Invest if you plan to do TLS inspection
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Wrapping up

20. Wrapping it up Low latency is more important than high bandwidth.
Microsoft Ignite 2016
6/8/2018 4:30 PM
Wrapping it up
Low latency is more important than high bandwidth.
Connectivity requirements are documented. Read it.
Calculators are helpful when good baselines exist.
Overestimating increases is a valid approach.
A pilot may be the most accurate way to go if you can afford the lead times.
New services, new features, and new ways of doing things will drive the need for more bandwidth.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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25. 6/8/2018 4:30 PM
Thank you
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.