Architecture And Cost Analysis For Enterprises’ Global Deployment On Huawei Cloud Singapore CN2

1.

Overview: Why choose Huawei Cloud Singapore CN2 as the global export point

- CN2 is a dedicated international backhaul optimized for the Chinese mainland, suitable for enterprises that need a stable connection to their home country.
- Huawei Cloud’s Singapore node is located near the Southeast Asia backbone network, offering low latency for users in the Asia-Pacific region, along with excellent international connectivity.
- For applications sensitive to latency and packet loss, such as cross-border e-commerce, SaaS, and gaming, CN2 can significantly reduce latency and packet loss rates when returning to China.
- Compared to traditional international links, CN2 has less jitter under congestion, making it suitable for services with high stability requirements.
- From an enterprise perspective, this article provides network architecture recommendations, server configuration examples, and cost estimates to facilitate practical decision-making.

2.

Key Points of Networking and Architecture: Global deployment basic topology and components

- It is recommended to adopt a three-tier architecture of “Singapore (CN2) + multi-regional edge CDN + origin-pull acceleration” to reduce global access latency and ensure high-quality access within the country.
- edge layer: Use Huawei Cloud or third-party global CDNs (covering the US, Europe, Asia, and Australia) to cache static resources at nearby nodes.
- Computation layer: Singapore’s primary cluster hosts the application logic and read-only replicas of the databases, while critical writes are sent back to the main database in China via dedicated lines/encryption.
- Routing Layer: Enable intelligent DNS+Anycast along with health checks to achieve proximal traffic forwarding and failover.
- Security Layer: Deploy cloud firewalls and DDoS protection instances at the edge of Singapore, combined with WAF and rate limiting to ensure availability.

3.

Examples of server and VPS configurations (specific hardware and software)

- Small-scale online services (low-concurrency APIs): 2 vCPU / 8 GB RAM / 100 GB SSD, suitable for daily active users <10k 的微服务实例。
- Mid-sized e-commerce backend: 8 vCPU / 32 GB RAM / 500 GB NVMe + 1 Gbps dedicated bandwidth, with Nginx + Gunicorn/Node.js .
- Database node (read-only replica): 16 vCPU / 64 GB RAM / High IOPS SSD, with master-slave replication and regular snapshot backups enabled.
- Cache layer: 3-node Redis cluster, 2 vCPU / 4 GB RAM; memory is configured based on peak concurrency and dataset size.
- Backup and Logs: Independent Object Storage (OBS) is used for backup and log archiving, with lifecycle policies enabled to reduce costs.

4.

Bandwidth, CDN, and DDoS Cost Estimates (Comparison Table Example)

- Cost includes: ECS (instance) fees, inbound/outbound bandwidth fees, CDN traffic fees, DDoS/protection package fees, IP/domain name and storage fees.
- The table shows the typical monthly costs for three common deployment scenarios (example estimates, in units of: USD/month).
- Explanation: Bandwidth fees are commonly charged either based on outbound bandwidth or based on traffic volume. CN2 dedicated lines may incur additional link fees.
- CDN prices depend on the region and the origin server traffic, typically saving 30%-60% in traffic costs and bandwidth strain compared to using a regular public network for origin server access.
- DDoS protection is billed based on guaranteed bandwidth and peak usage, with two options available: a basic high-protection package and an elastic pay-as-you-go option.

Plan	ECS (2-10 units)	Bandwidth/Traffic	CDN	DDoS High Protection	Estimated monthly fee
Single Region (SG-CN2)	$400	1 Gbps minimum ([$700])	$200	$300	$1,600
Multi-region + CDN (SG + EU)	$700	0.5 Gbps ($350)	$450	$400	$1,900
Mixed (SG CN2 + Domestic Data Center)	$900	1 Gbps + Dedicated Line ($1,100)	$300	$600	$2,900

5.

Real cases: The experience of a mid-sized e-commerce company in launching operations on CN2 in Singapore

- Background: A mid-sized e-commerce company needs to serve users in mainland China, Southeast Asia, and Europe and the Americas simultaneously, with a peak daily request volume of around 30k QPS (static + dynamic content combined).
- Plan: The main server is deployed in Huawei Cloud Singapore (with a CN2 return link enabled), while CDNs and edge caching are used in the US, Europe, and Southeast Asia.
- Configuration Example: The primary database is hosted on the Chinese mainland (on-prem), with 6 ECS instances (4 vCPU / 16GB) deployed in Singapore. The read replicas consist of 3 nodes.
- Measured data: The average RTT from Singapore to Shanghai is ~ 45 ms, with the packet loss rate dropping during peak times <0.5%，用 CN2 明显优于一般国际链路。
- Results: The page load time on the first screen decreased from 2.1s to 1.2s. The monthly complaints related to domestic connections dropped by 70%. Overall, cloud and network costs were reduced by about 18% compared to the previous pay-per-use approach.

6.

Operations and Security Recommendations: Domain names, certificates, backups, and attack response

- Domain Name Policy: Use intelligent DNS (GeoDNS/Anycast) to route requests to the nearest CDN/node in different regions, with primary domain names combined with secondary domain names to control the priority of traffic routing back to the origin.
- Certificates and HTTPS: Use ACME for automated issuance/renewal uniformly. Edge endpoints should use TLS 1.2/1.3 and have HTTP/2 optimization enabled.
- Backup Strategy: Database daily backup + weekly backup + monthly cold backup ； Object storage supports cross-region replication (across availability zones/cross regions).
- DDoS Mitigation: Enable basic high-defense measures while setting traffic threshold alerts, and prepare emergency scaling strategies and black hole routing solutions.
- Monitoring and Drills: SLA metrics (latency/packet loss/error rate) need to be monitored continuously, with link switching and failure recovery procedures tested quarterly.

7.

Conclusions and Recommendations: How to balance cost and performance

- If the target audience is primarily Chinese users who require stability in their home country, Huawei Cloud Singapore CN2 should be used as the primary node, along with a domestic primary database or a hybrid deployment.
- For global user balance, Singapore is recommended as the primary APAC node, combined with multi-regional CDN and local read-only replicas to ensure a nearby experience.
- Cost control suggestions: Static resources should be cached via CDN as much as possible, while long-term backups and archives use low-frequency/archival storage to reduce costs.
- For medium to large-scale businesses, it is recommended to reserve elastic bandwidth and high-defense redundancy budgets to prevent SLAs from failing due to attacks or peak traffic periods.
- Final recommendation: Guided by business SLAs, start with a small-scale phased rollout and use real traffic to verify the effectiveness of CN2 for returning data to China, before gradually expanding capacity and optimizing the cost structure.