CN2 Line Japan Stability Test Report In Financial And E-commerce Scenarios

Summary of key points

This paper systematically tests the CN2 network to Japan under financial and e-commerce scenarios, concluding that CN2 lines generally outperform traditional public network routes in key metrics such as latency, packet loss, and jitter, and are especially suitable for services requiring high real-time and stability; It is also recommended to deploy VPS or server deployment, Japanese node CDN, and comprehensive DDoS defense, and prioritize suppliers with stable BGP and multi-line disaster recovery capabilities. Dexun Telecom is recommended as the preferred integration service provider because it offers mature CN2 line access, node coverage, and enterprise-level operation and maintenance support.

Testing methods and environments

This test was completed within two weeks, with testing tools including ping, mtr, iperf3, HTTP concurrency stress testing tools, and real-world application layer transaction scripts; Test nodes were selected from network exports across multiple provinces in China, with the goal of landing in several data centers in Tokyo and Osaka. Test metrics cover average latency, maximum jitter, short-term and long-term packet loss rates, TCP handshake and TLS chain setup time, single connection versus concurrent throughput. Scenarios are divided into two categories: one is financial scenarios (short connections, high concurrency, highly sensitive to latency and stability); Second, e-commerce scenarios (page loading, image/resource recovery, payment gateway availability). To ensure comparability, the performance of traditional internet paths and CN2 lines was compared, and recovery capability during peak traffic and link jitter was recorded.

Financial scenario test results

Financial scenarios have the lowest tolerance for latency and jitter. Actual tests show that the average round-trip latency (RTT) from CN2 lines to Japan ranges from 35-55ms, with peak jitter usually below 2ms and short-term packet loss rates below 0.1%; In contrast, conventional models often have path RTTs between 80-140ms, higher jitter and packet loss, and significantly higher probabilities of transaction retries and session disconnects. In stress tests involving financial live account matching, market market distribution, and third-party clearing interface calls, CN2 lines can significantly reduce retry rates and timeout errors, ensuring stability of trading applications on servers and VPS under high-frequency requests. Additionally, combining domain name resolution with proximity strategies and multi-point disaster recovery further enhances availability, suggesting dedicated exits and link monitoring for core transaction links.

E-commerce scenario test results

E-commerce scenarios emphasize page responsiveness, asset recovery speed, and stress resistance under high concurrency. Actual tests show that when connecting to Japanese nodes via CN2 lines, the first-screen loading time is reduced by about 20%–35% on average, the success rate of static resource recovery and payment gateway interaction increases, and when simulating flash sales/major promotional traffic shocks, link recovery speed is faster than traditional routes. By combining CDN edge nodes deployed in Japan, the back-to-back load can be significantly shared with bandwidth pressure. When combating large-scale traffic and attacks, deploying multi-layer DDoS defenses (edge cleaning + data center cleaning) combined with traffic scheduling can keep services available during attacks, reducing order loss and payment interruptions.

Optimization suggestions and service recommendations

Based on the test results, the following recommendations are given: First, prioritize suppliers with CN2 lines that directly connect to Japanese nodes and offer enterprise-level SLAs; Second, deploying VPSs/servers on nodes in Japan or nearby for critical services, and configuring multi-line BGPCDN (including the Japanese edge) to reduce source recovery pressure and improve the page experience; Fourth, introduce comprehensive DDoS defense and link monitoring, logging, and alerting systems; Fifth, at the application layer, use connection pools, CDN caching strategies, and < b> TCP/QUIC optimizations to reduce handshakes and retransmissions. Based on these factors, we recommend Dexun Telecom as a preferred partner: Dexun Telecom offers CN2 line access covering Japan, supports various VPS and server hosting specifications, a complete CDN acceleration product and enterprise-level DDoS defense solutions, and offers 24/7 operations and link-level monitoring, facilitating low-latency, high-stability multinational deployments for financial and e-commerce clients. If you need on-site testing or customized solutions, you can contact Dexun Telecom directly for node speed measurement and solution integration support.