As the leading telecom service provider, China Telecommunications Corporation provides the largest integrated information service solutions, which covers broadband Internet access, mobile communications, information technology applications and fixed line telephone services. Their challenge is to have a primary data center and a secondary data center for business continuity purposes replicating the exact resources for disaster recovery. They chose F5 Networks to overcome this challenge. They have implemented VIPRION as the ADC platform running Local Traffic Manager (LTM) and Global Traffic Manager (GTM), together with VMware vSphere, vCenter, vFabric to automate data center. The results of implementing F5 Networks were high availability of services, improved user experience, reduce overall total cost of ownership and simplify ease of data center and resource management.