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Billions of Reasons for 10-Gigabit LAN Switches

08.04.2013 15:46:00


Alipay, a subsidiary of Alibaba Group, is a global-leading, third-party online payment platform in China, providing simple, safe, and quick online payment services (such as e-payment, secured payment, and mobile payment) to millions of users and businesses. Online shopping is a key application for Alipay as it reduces users’ concerns for the safety of their payments.

Over 300 million users registered with Alipay in the past 10 years. The daily transactions increase from USD $32 million per day to USD $240 million per day, and annual transactions generate about USD $64 billion. It was predicted that the annual transactions for Alipay will reach over USD $160 billion by 2014. Due to the fast growth of Alipay services, Alibaba Group realized that the traditional data network could not handle the high-speed and secure exchange necessary to keep up with massive Alipay services data. As a result, Alibaba Group decided to build a new data exchange platform.


Online transactions are an emerging component of the e-commerce industry. Enterprises exchange products and service information over the Internet have high requirements for information integrity, transmission performance, network security, and stability. Taobao services involve transmission of large quantities of images which require network devices to support line-rate data processing capabilities. In addition, unpredictable data growth places higher demands on the redundancy capabilities and reliability of network devices.

For example, on September 11, 2011 (also known as Single’s Day), about 3.42 million users inundated the Taobao website within 1 minute from the time that the online shopping activities began. The transaction volumes soared to USD $16 million after 8 minutes, USD $32 million after 21 minutes, and USD $320 million by 4 PM, generating approximately 10 million orders. Consequently, a network with huge data processing capabilities was required to handle the massive, high-speed online transactions. A secure, reliable 10-gigabit throughput data network was necessary for these kinds of situations.


    To handle the unpredictable data growth, Huawei provided a 10-gigabit LAN switch-based data center solution that has the following compelling features:

  • Allows for the online payment platform to process USD $160 billion in transactions:
  • The Huawei S9306 LAN switch supports the access of approximately 300 gigabit servers with dual network adapters. The large capacity (2 Tbit/s) and high-density ports (576 gigabit ports per device) allow for easy scalability of large quantities of new servers.
  • Flattened network that is capable of handling burst data traffic with its non-blocking switching capabilities:
  • A two-layer flattened network structure and a 200-millisecond large-capacity data packet cache ensure non-blocking and high-speed data switching.
    • Flexible traffic scheduling to avoid security risks:
    Bundled 10-gigabit links are deployed between S9306s and are deployed as uplinks of S9306s to achieve load sharing and avoid Single Points Of Failure (SPOFs). Multiple Spanning Tree Protocol (MSTP) is enabled to prevent broadcast storms.
    • Powerful performance and global large-scale deployment:
    Huawei S9306 LAN switch supports up to 2 Tbit/s switching, 1 Gbit/s forwarding capabilities, and 120 Gbit/s bandwidth for each slot, offering secure, reliable, and timely financial transaction services to online payment customers all over the world.


    Huawei helped Alipay build a stable data center network, which ensures secure and highly efficient services for Alipay online payments. The new solution is scalable to easily support business growth.

    Now, Huawei’s solution also supports the ever-increasing data transaction growth for Alipay (Alipay had predicted that the transaction volume in 2014 would break USD $160 billion) with large capacity and high-port-density devices.