What happens to your network and security architecture when you roll out Office 365 to thousands of users in more than 20 countries? A lot. Office 365 places bigger demands on your network and your Internet gateway than it has ever had to handle, and there are a lot of ways to get it wrong. This talk will address network and gateway architecture, branch office enablement and branch security.Learning Objectives:1: Understand the challenges that are most prevalent in deploying Office 365.2: Learn best practices for designing and optimizing your network for Office 365.3: Understand how to balance legacy and cloud in the same environment.