Hong Kong Cn2 Vps 2017 Historical Evaluation And Analysis Of Market Performance And Remaining Issues In That Year

1. introduction and background

in 2017, cn2 (chinanet next carrying network)'s link from mainland china to hong kong became one of the first choices for cross-border business.
that year, the cn2 gia route was promoted as a low-latency path optimized for mainland china.
many vps providers label "cn2 direct connection" and "cn2 node" as selling points in hong kong computer rooms.
this article reviews the technology implementation, evaluation data, market performance and remaining issues of the year.
the goal is to provide reference and improvement direction for subsequent evaluation or migration.

2. technical architecture and common configurations

common virtualization back then: kvm and openvz coexisted, and kvm was more favored by performance-sensitive users.
most of the physical hosts are intel xeon e5 series, with 32-64gb memory and 4-12 core configurations common in single machines.
storage is mainly enterprise-grade ssd or hybrid ssd, and iops and latency have become bottleneck concerns.
most network exports are 1gbps or 10gbps ports, and the billing modes include flow-based and unlimited flow.
in terms of security, ddos cleaning is not common, and many products require additional protection or the use of a third-party cdn.

3. performance evaluation and specific data (example)

the following uses actual measurement examples to present the average rtt and packet loss from a typical hong kong cn2 vps to mainland and asia-pacific nodes in 2017.
data collection method: ping continuously for 5 minutes, take the average of 100 mtr samples, and the port bandwidth is measured as a single-threaded iperf short test.
table display (sample data, for reference only):

destination	average rtt(ms)	packet loss(%)	single stream bandwidth (mbps)
guangzhou	twenty two	0.2	400
shenzhen	20	0.1	450
beijing	85	0.5	200
tokyo	35	0.3	500

4. market performance and price trend of the year

in 2017, due to the obvious premium of cn2 labels, the selling price was generally higher than that of ordinary international lines.
common packages: 1 core/1-2gb/40-60gb ssd/1gbps port, price range is about us$10-25/month.
bandwidth strategy: some merchants provide unlimited traffic but port sharing, and the peak value is affected by the host machine and users on the same machine.
enterprise users, cross-border e-commerce and game hosting are the main demanders.
promotions and annual payment discounts have promoted rapid market growth, but the stability test of service quality has also increased.

5. real cases and server configuration examples

real case (anonymous): in october 2017, a small and medium-sized game studio purchased hong kong cn2 vps as a public network game node.
purchased configuration: kvm, 2vcpu (intel xeon e5 v3), 4gb ram, 80gb ssd, 1gbps port, no current limit.
actual performance: the average delay in guangzhou in the first month was 25ms, and the single-machine cpu usage reached 90% during the peak period, causing packet loss to increase to 1.5%.
follow-up measures: upgrade to a dedicated physical machine or higher specification kvm, and introduce cdn + dedicated ddos cleaning.
conclusion: small-scale vps is suitable for testing and light-duty services, but resource isolation and protection must be considered for sustained high loads.

6. analysis and suggestions on remaining issues

remaining issue one: routing stability - although the cn2 link is excellent, there are still bgp changes that cause jitter and packet loss.
remaining problem two: resource isolation - openvz products have a "noisy neighbor" phenomenon at high density.
remaining issue three: ddos and cleaning - the default protection is weak and requires paid or plug-in cleaning services.
suggestion 1: use independent ports or guaranteed bandwidth allocation (dedicated bandwidth), and implement multi-line redundancy.
recommendation 2: when business is critical, consider physical machines or higher-specification kvm, and combine cdn and traffic cleaning strategies.