SDN in Real World-Google's Story The industries were skeptical whether SDn was possible Google had big problems High financial cost managing their datacenters hardware and software upgrade, over provisioning fault tolerant), manage large backup traffic, time to manage individual switch, and a lot of men power to manage the infrastructure Delay caused by rebuilding connections after link failure Slow to rebuild the routing tables after link failure Difficult to predict what the new network may perform Google went a head and implemented SDn Built their hardware and wrote their own software for their internal datacenters Surprised the industries when google announced sdn was possible in production How did they do it? Read"B4: Experience with a Globally-Deployed Software Defined WAN, ACM Sigcomm 2013SDN in Real World – Google’s Story • The industries were skeptical whether SDN was possible. • Google had big problems: • High financial cost managing their datacenters: Hardware and software upgrade, over provisioning (fault tolerant), manage large backup traffic, time to manage individual switch, and a lot of men power to manage the infrastructure. • Delay caused by rebuilding connections after link failure. • Slow to rebuild the routing tables after link failure. • Difficult to predict what the new network may perform. • Google went a head and implemented SDN. • Built their hardware and wrote their own software for their internal datacenters. • Surprised the industries when Google announced SDN was possible in production. • How did they do it? • Read “B4: Experience with a Globally-Deployed Software Defined WAN”, ACM Sigcomm 2013