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DIA · Broadband · SD-WAN · IEPL / MPLS · 4G/5G

Connectivity

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.

Availabilityup to 99.99%Failover< 50 msCoverage200+ cities
Network cabling in a rack
Use cases

When to call us

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.

  • Internet access and SD-WAN underlay for your customers' China sites
  • Diverse dual-carrier designs for critical sites, with automatic failover
  • Replacing costly domestic MPLS between HQ and branches
  • Cross-border links to Hong Kong, Singapore, Tokyo and Los Angeles
  • Cloud on-ramps to Alibaba Cloud, Tencent Cloud and AWS China
  • Temporary 4G/5G for projects, events and construction sites
SLA

Define the SLA first, then the path

Every circuit has a clear demarcation point, latency budget and protection scheme. Three service levels, chosen by how critical the site is.

MetricStandardEnhancedPremium
Availability99.9%99.95%99.99%
Downtime / year8h 46m4h 23m52m
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)
Cross-border

Routes out of China

Provisioned through licensed carriers and our PoPs in Hong Kong, Tokyo, Singapore and Los Angeles. GSS manages ordering, last mile and support.

RouteTypeBandwidthTypical latency
Shenzhen ↔ Hong KongIEPL10M – 10G< 5 ms
Shanghai ↔ TokyoIEPL10M – 1G≈ 40 ms
Beijing ↔ SingaporeMPLS2M – 1G≈ 75 ms
Shanghai ↔ Los AngelesIEPL10M – 1G≈ 140 ms

Typical one-way latency; confirmed at survey and in your SLA.

Specifications

Specifications

Access types
DIA, business broadband, IP transit, IEPL, MPLS VPN, IP-VPN, SD-WAN, 4G/5G
Bandwidth
2 Mbps – 10 Gbps domestic; 10 Mbps – 10 Gbps cross-border IEPL
Lead times
DIA ~10–20 business days where fibre is in the building; 4G/5G within 3 business days; IEPL 20–45 business days
Service levels
99.9% single circuit / 99.99% dual-carrier, diverse path; 15-minute response, 4-hour restore target
Coverage
200+ cities in mainland China; international PoPs in Hong Kong, Singapore, Tokyo and Los Angeles
Cross-border
Provisioned through licensed basic telecom operators, in line with MIIT rules; GSS manages ordering, last mile, installation and support
Process

How delivery works

Site survey

Confirm addresses, bandwidth, SLA and budget; check local-loop feasibility where needed.

Quote

Route options, alternatives and per-segment costs within 1–3 business days.

Install & test

Our engineers install the last mile and CPE; cross-border segments are tested end to end.

Support

24×7 monitoring from our NOC, ticketing in English and monthly reports.

Case studies

In production

All case studies
Retail store
RetailNational retail chain

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.

SD-WANRolloutPrivate AI
−91%Store outages
1,800Stores connected
Automated factory
ManufacturingGlobal automotive parts maker (China operations)

Multi-plant SD-WAN and cross-border sync for an auto parts maker

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.

SD-WANCross-border IEPLEdge AI
−34%WAN cost
6h → 50minCross-border sync
Server board
Internet / AIGlobal AI company (Singapore HQ, Shanghai R&D)

Cross-border compute links and multi-cloud GPU scheduling

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.

Cross-border IEPLGPU schedulingTransfer audit
20h → 2.5h40 TB transfer
35% → 78%GPU utilisation
FAQ

Frequently asked questions

Didn't find your answer? Ask us

How fast can you deliver?
Where fibre is already in the building, DIA typically takes around 10 business days. 4G/5G can be live within 3 business days. Cross-border IEPL usually takes 20–45 business days.
Can you provide diverse, dual-carrier circuits?
Yes. We design dual circuits on different carriers and physical paths, with SD-WAN for automatic failover.
How are cross-border circuits provided?
Through China's licensed basic telecom operators, as required by MIIT. GSS handles ordering, the last mile, installation and ongoing support, so you have one point of contact.
Who do we contract with?
Global customers can contract with our Hong Kong entity under Hong Kong law in USD. Local service orders and VAT invoices for China entities are issued by our licensed mainland entity.
Request a quote

Tell us what you need

Send us site addresses and requirements. A solutions architect will reply within one business day.

  • 1
    Reply within 1 business dayFrom a solutions architect, not a ticket queue.
  • 2
    Quote in 1–3 business daysRoute options, alternatives and per-segment costs.
  • 3
    Contract the way you preferHong Kong entity in USD, or mainland entity in RMB with VAT invoice.

Or email sales@goldsunshine.net