[China, April 15, 2016] Huawei and Baidu have jointly built China's first Internet data center (IDC) optical transport network that supports T-SDN. Huawei's T-SDN bandwidth on demand (BoD) feature provides dynamic and flexible transmission pipes for Baidu to handle burst traffic between IDCs. The success of this project leads the way for industry peers building new-generation IDC optical transport networks that support SDN.

The rapid development of the cloud computing industry in recent years has led Baidu, China's largest search engine, to pioneer open cloud services in addition to its core search business and services such as big data analysis. The variety of internal services and complex individual requirements of open cloud challenge Baidu to maintain satisfactory IDC interconnection bandwidth and traffic scheduling between IDCs on its optical transport network. Currently, Baidu's metro optical transport system tends to use point-to-point interconnections between IDCs. All inter-IDC traffic must therefore be forwarded by the super IDC core switch. Since all Baidu services are inter-IDC, the load on the core switch located in the super IDC is heavy, adversely effecting traffic scheduling between IDCs.

Drawing on a deep understanding of Baidu's services and network architecture, Huawei custom-built an IDC optical transport network solution based on T-SDN to help Baidu explore new network operating modes. Huawei T-SDN's bypass function for data traffic between IDCs allows Baidu services of different granularities to be transmitted at different optical network layers. For example, low-granularity services can be scheduled at the OTN layer while high-granularity services can be transparently transmitted over wavelengths. The bypass function reduces traffic load on core switches, and satisfies the complex individual requirements of Baidu's internal and open cloud services. In addition, Huawei's T-SDN solution provides both real-time and scheduled service provisioning, as well as adjustment of transmission pipes and transmission pipe bandwidth. Flexible E2E service scheduling better handles both ordered and burst transmission requirements between IDCs.

"SDN is the product of applying IT technologies to networks," said Zha Jun, president of Huawei Fixed Network Product Line, at CeBIT 2016. "These networks evolve from pure data transmission to open, programmable, and service-oriented systems that can be driven by applications. They support dynamic networking, centralized control, and network-wide optimization. With our huge customer base and wealth of experience in global network deployment, Huawei has taken the lead in SDN commercialization. Naturally, world-class enterprises choose Huawei's SDN solution for their IP and optical transmission networks. Huawei continues to innovate and optimize our SDN solution to help customers achieve business success."

Huawei is widely recognized in the industry as the leading provider of commercial SDN. In addition to Huawei's tailor-made Baidu solution, Huawei's SDN solution has been adopted in networks of multiple leading companies such as Telefonica(Spain). By the end of 2015, Huawei had implemented 162 SDN projects worldwide, spanning multiple application scenarios such as data centers, WANs, government/enterprise leased lines, and MAN edges.

Huawei has joined outstanding industry partners to take full advantage of innovations and build an open, cooperative, and mutually beneficial SDN ecosystem. Huawei was a founding member of ONOS, an open-source high-availability and high-performance SDN controller project, and joined the Linux Foundation in February 2016 to propose OPEN-Orchestrator (OPEN-O), the first open-source E2E service orchestrator project to support integration of both NFV and SDN. These achievements demonstrate Huawei's unwavering commitment to continuous development of an open SDN ecosystem.