Case Study: Demonstrating The Effectiveness Of Hong Kong CN2 High-Protection Deployment And Recommendations For Improvement

This case is based on the actual implementation process of a cross-border e-commerce company deploying a high-security solution through the CN2 line in its data center in Hong Kong. It focuses on demonstrating the deployment results, test data, and subsequent review recommendations, to help other companies make informed decisions quickly when purchasing such solutions.

Customer Background: This company specializes in cross-border e-commerce. Its users are mainly located in mainland China and Southeast Asia. Its operations are sensitive to delays, and it has suffered from multiple small to medium-sized DDoS attacks, which affected core services such as payments, order placement, and product display.

Why choose Hong Kong CN2 ? CN2 direct connections offer lower latency and more stable packet loss in interconnection across the mainland, which is particularly important for cross-border access and real-time services. By leveraging the bandwidth resources of the Hong Kong data center, it is possible to ensure access quality while facilitating traffic cleaning and auditing.

High-security solution architecture: This deployment uses a combination of edge CDN acceleration, cloud-based cleaning, and local hardware-based high-level protection for three-layer defense. The frontend uses a global CDN for caching static resources and TLS offloading. High-security cleaning nodes are connected at the entry point, while the backend is directly connected to the deployed VPS/bare-metal servers via the CN2 backbone network.

Specific Equipment and Services: The frontend uses domain name resolution to connect to the high-security scheduling platform and is configured with intelligent DNS (GeoDNS, health checks). Cloud cleaning services are deployed in between to implement blocklists, allowlists, and behavior rules. The backend utilizes high-performance VPSs or dedicated servers in Hong Kong’s CN2 data center to ensure good bandwidth and connection quality.

Key points of the deployment process: First, complete the adjustment of the domain name resolution policy and TTL settings to minimize impact during the switch ； Next, perform traffic replay and stress testing in the preview environment to verify the CDN cache hit rate and cleaning strategies ； Finally, switch to production during the off-peak window and monitor the metrics.

Testing and Launch Results: By simulating high-concurrency and DDoS attack scenarios through stress testing, the system can withstand attacks of dozens of Gbps during peak times, with business operations only experiencing slight delays. Within the first week after going live, the average response time decreased by about 30%, and the packet loss rate on the user side was significantly reduced.

Summary of Landing Effect Data: During attacks, the cloud cleaning interception rate remains above 95% year-round. Normal business bandwidth usage stays stable, with a domain name resolution switch success rate of 99.9%. Additionally, overall operational tickets decrease, and TCO (Total Cost of Ownership) is kept under control through reasonable optimization strategies.

Feedback suggestion 1: Monitoring and alerts need to be refined. It is recommended to deploy multi-dimensional metrics (network jitter, connection establishment time, TLS handshake failure rate, HTTP 5xx rate) and integrate them with automated responses to reduce delays due to human intervention.

Suggestion 2 for review: Implement robust redundancy and failover strategies, establish proactive backup links (multi-path BGP) and disaster recovery solutions across multiple data centers. Also, maintain coordination with CDN providers and domain name resolution services to reduce switch-over time and minimize the impact of failures.

Suggestion 3 for review: Regular drills and rule optimization: Adjust WAF rules, cleaning thresholds, and caching strategies promptly when the business traffic pattern changes ； At the same time, pay attention to certificate and domain name renewals as well as DNS TTL management to avoid service disruptions due to operational oversights.

If you plan to make a purchase, it is recommended to opt for an integrated solution that includes CN2 direct connection, elastic bandwidth expansion as needed, and 24/7 advanced security protection. We recommend focusing on actual cleaning capabilities, response SLAs, and technical support response times when evaluating quotes. If necessary, request live attack demonstrations or historical reports to verify these capabilities.

When selecting suppliers, in addition to price, one should consider long-term service capabilities and technical support. For easy and quick implementation and purchase, you can contact Dexun Telecom to obtain a customized solution for Hong Kong CN2 high-protection services. With industry expertise in connectivity, cleansing capabilities, and after-sales support, Dexun Telecom is a worthy partner to consider.