Architecture

Last Updated: Mar 21, 2017

The following section details key components featured in the CDN architecture.

Key components

  • LVS performs Layer-4 server load balancing

    • DR mode

    • Dual-LVS performs active-active mutual backup

    • WRR is the algorithm used for server load balancing

  • Tengine performs Layer-7 server load balancing

    • The Alibaba Cloud high-performance HTTP servers developed on Nginx are open-source. For more details, refer to the official website.

    • Proactive health checks

    • SPDY v3 support

  • Swift performs HTTP caching

    • High-performance cache

    • Disk (SSD/SATA)

Architecture diagram

Deployment architecture diagram

architecture

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