Speed Comparison Report: Analysis of the Performance of Vietnamese CN2 VPS in Southeast Asia and Compared to the Mainland China Connection

This report professionally evaluates the network link performance of Vietnam CN2 VPS between Southeast Asia and Mainland China. By standardizing the speed testing process and employing multi-point sampling, comparing latency, packet loss, and throughput capabilities, this provides operators and technical decision-makers with referenceable data and recommendations to help optimize deployment strategies and link selection.

Testing methods and procedures

Speed tests were conducted using ICMP ping, TCP/UDP connections, and multi-threaded transfer tools at different time intervals. Each test maintains a sample size of more than 30, removes outliers, and calculates the average and median to reduce the impact of instantaneous fluctuations. The testing process emphasizes repeatability and comparability, recording routing hop counts and BGP path information to assist in analysis.

Test Environment and Sample Selection

The test nodes cover local nodes in Vietnam, major export points in Southeast Asia, and multiple provincial nodes in mainland China. The host under test is a VPS node at the exit point of Vietnam's CN2 network. It uses default routing and common ports to ensure the test results reflect real-world business scenarios. The sample period spans weekdays and weekends to observe peak and off-peak differences.

Measurement Indicator Description

This speed test focuses on three key indicators: Delay (RTT), packet loss rate, and effective throughput (bandwidth utilization). Record jitter and routing hops simultaneously, and combine BGP information to determine whether the CN2 route or other interconnection paths are taken, facilitating identification of performance differences and potential bottlenecks.

Southeast Asia link overall performance

The CN2 VPS in Vietnam generally provides stable connections within Southeast Asia, with relatively low latency and minimal fluctuations, making it suitable for deploying services within this region. The packet loss rate remains under control in most time windows, throughput performance is limited by outbound bandwidth and carrier policies, but overall meets the needs of small to medium-sized businesses, with good cross-border transmission experience.

Overall performance of the links to the Chinese mainland

There is a noticeable time-based variation in the link performance from Vietnam CN2 VPS to mainland China, with higher latency than the regional average and increased jitter during peak hours. Packet loss occurs occasionally and is primarily influenced by the interconnection policies between cross-border points and service providers. In some provinces, significant differences are observed due to the varying interconnection paths used by the operators.

Delay and packet loss detailed analysis

In terms of latency, provinces with shorter routes perform better, but congestion at intermediate routing nodes during peak hours can cause RTT to increase. Packet loss is often related to cross-border backbone links or edge interconnection points, not persistent but can affect latency-sensitive services. By combining route tracing, it is possible to determine at which level of the autonomous systems the problem occurred.

Bandwidth and throughput performance

Throughput tests indicate that the Vietnam CN2 VPS can provide stable upload and download speeds under carrier-grade interconnection, but the instantaneous bandwidth of cross-border links is significantly constrained. The decrease in throughput is more pronounced under concurrent transmission conditions, indicating that in high-concurrency scenarios, it is necessary to consider link redundancy or traffic scheduling strategies to ensure stability.

Comparative Analysis and Possible Causes

Comprehensive comparisons show that intra-ASEAN links perform better than those connecting to the Chinese mainland. The main reasons include the peer-to-peer nature of interconnection, the distribution of backbone link capacity, and congestion at cross-border nodes. BGP policies among carriers, international transmission protocols, and network quality assurance also significantly affect the end-user experience, and should be analyzed from the perspective of route selection and link operations.

Optimization suggestions

For cross-border access from Vietnam CN2 VPS to mainland China, it is recommended to adopt multi-hop backup links or SD-WAN strategies to optimize routing, configure appropriate transport layer retry and congestion control, allocate bandwidth reasonably, and monitor performance at key interconnection points. For services that are sensitive to latency, it is recommended to deploy them nearby or use acceleration services to reduce the impact of jitter and packet loss.

Summary and Action Recommendations

The current speed test comparison report shows Vietnam CN2 The VPS performs well within Southeast Asia, but the connection to mainland China experiences fluctuations due to network interconnection and time-of-day factors. It is recommended to select nodes based on business characteristics, deploy backup links, and continuously monitor routing quality to achieve a more stable cross-border access experience and higher availability.