Protecting Against DDoS Attacks with Secure Content Delivery Network (SCDN)

SCDN Architecture

According to the architecture diagram, edge nodes must be capable of cleaning distributed denial of service (DDoS) attacks and challenge collapsar (CC) attacks, and have abundant application-layer protection capabilities. The bandwidth of DDoS attacks has been increasing in recent years. Since last year, the bandwidth of traffic-intensive DDoS attacks has exceeded 1 Tbit/s. The attack traffic has gone beyond the protection capability of ordinary CDN nodes. So, we have designed an anti-DDoS data center in the architecture to defend against mega DDoS attacks.

DDoS Protection and Application-Layer Protection

SCDN Advantages and Application Scenarios

SCDN Service Modes

Currently, SCDN offers two protection modes.

Customer Cases of SCDN

To help the audience better understand the service modes and application scenarios of SCDN, Zhao Wei introduced several typical customer service cases.

Future Planning of SCDN

We released the closed beta version of SCDN in September 2017 and the open beta version in December 2017. In May 2018, we officially put SCDN into commercial use. We hope to provide more stable and efficient Alibaba Cloud CDN products in each phase. The scale of DDoS attacks still continues to grow, so we must comprehensively polish the security protection capabilities to provide more stable services for more customers. But what is our plan for SCDN in the future?

  1. SCDN development outside China. At present, both Chinese customers who develop businesses outside China and customers outside China who use CDN services have clear security requirements. The development of SCDN outside China is the focal point of our subsequent SCDN planning.
  2. Pay-As-You-Go. We have already developed the basic protection and standard protection versions. To meet more customers’ requirements, we plan to provide a Pay-As-You-Go version that is applicable to more customers to convert Alibaba Cloud’s technologies into customer benefits.
  3. Industry-specific solutions. We plan to sort out and analyze the defense methods of customers who use Alibaba Cloud services in multiple industries to provide industry-specific solutions, so that future customers can have quick access to our products.
  4. IPv6 defense. China has launched a plan to comprehensively support IPv6 in 2018. We expect more IPv6 services in China, and will also develop IPv6 defense for SCDN in a timely manner.

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