When a large document management company tried to migrate 140,000 users from Exchange Server 2003 to Exchange Server 2010. Their challenges are to relieve overloaded, failing load balancers, complete Exchange Server 2010 migration of 140,000 users and deploy high-capacity, scalable solution to handle anticipated future growth. They chose F5 Networks to overcome these challenges. They have implemented BIG-IP Local Traffic Manager (LTM), VIPRION 2400 platform and iApps. The results of implementing F5 Networks were restored Exchange Server 2010 service in record time, completed Exchange Server 2010 migration on schedule, provided ample capacity to manage both Exchange Server and SharePoint server traffic and enabled on-demand scalability to meet future needs.