This session will talk about the advantages of using SDN, and how the Nuage SDN plugin has helped customers address their production use cases and requirements. In particular, the deployment and upgrade of the China Telecom Cloud Computing (CTCC) large scale production public cloud will be highlighted. The session will also touch upon some other use cases and advanced networking capabilities (e.g.enhanced security, hybrid cloud, SD-WAN, bare metal support, container support, common policy across DC and branch) that CloudStack customers can leverage for their public/private/hybrid clouds beyond what is available with ACS today.