
1,800-store network upgrade with dual-link SD-WAN
Every store ran on a single broadband line; POS and loyalty systems dropped at peak hours. Customer data could not leave the company boundary.
DIA, business broadband, SD-WAN underlay, 4G/5G and cross-border IEPL/MPLS for sites anywhere in mainland China. We compare carrier options, handle the last mile and stay on the hook for support.

GSS has delivered business connectivity in China since 2011. We hold ICP/ISP value-added telecom licences in mainland China and work across China Telecom, China Unicom and China Mobile.
We don't just resell lines. The same team checks local-loop availability, compares carriers, installs the last mile and supports the circuit for its whole life.
Every circuit has a clear demarcation point, latency budget and protection scheme. Three service levels, chosen by how critical the site is.
| Metric | Standard | Enhanced | Premium |
|---|---|---|---|
| Availability | 99.9% | 99.95% | 99.99% |
| Downtime / year | 8h 46m | 4h 23m | 52m |
| One-way latency (Beijing–Shanghai) | ≤ 30 ms | ≤ 28 ms | ≤ 26 ms |
| Jitter | ≤ 5 ms | ≤ 3 ms | ≤ 1 ms |
| Packet loss | ≤ 0.1% | ≤ 0.05% | ≤ 0.01% |
| Protection switch | — | < 1 s | < 50 ms (BFD, dual path) |
Provisioned through licensed carriers and our PoPs in Hong Kong, Tokyo, Singapore and Los Angeles. GSS manages ordering, last mile and support.
| Route | Type | Bandwidth | Typical latency |
|---|---|---|---|
| Shenzhen ↔ Hong Kong | IEPL | 10M – 10G | < 5 ms |
| Shanghai ↔ Tokyo | IEPL | 10M – 1G | ≈ 40 ms |
| Beijing ↔ Singapore | MPLS | 2M – 1G | ≈ 75 ms |
| Shanghai ↔ Los Angeles | IEPL | 10M – 1G | ≈ 140 ms |
Typical one-way latency; confirmed at survey and in your SLA.
Confirm addresses, bandwidth, SLA and budget; check local-loop feasibility where needed.
Route options, alternatives and per-segment costs within 1–3 business days.
Our engineers install the last mile and CPE; cross-border segments are tested end to end.
24×7 monitoring from our NOC, ticketing in English and monthly reports.

Every store ran on a single broadband line; POS and loyalty systems dropped at peak hours. Customer data could not leave the company boundary.

MPLS between plants was costly and slow to scale, cloud ERP/MES performed poorly, and the nightly data sync with the German HQ took more than six hours.

Moving 40 TB daily datasets from Shanghai to GPU clusters in Singapore and Tokyo took 20+ hours over the internet, and training data had to leave China over an auditable path.
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