LarkYUN SD-WAN High-Availability Cross-Border Dedicated Line
Enterprise SD-WAN, cross-border private lines, global branch networking, intelligent routing, SaaS acceleration, cloud access, and centralized operations.
LarkYUN SD-WAN
High-Availability Cross-Border Dedicated Line
More Stable｜More Compliant｜More Reliable
LarkYUN Cloud specializes in cloud computing and related premium products, focusing on network hosting and virtual private servers with standardized and customized configurations. Leveraging top-tier facilities and quality network partners, we ensure high-availability services.
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What We Offer
Free Cross-Border Network Assessment
PoC Trial & Validation
Deployment Support
What You Need to Prepare
Business Destination
Current Network Link Type
Critical Business Priority
Five Major Challenges in Enterprise Global Expansion
Five Major Challenges in Enterprise Global Expansion Networks
High Cost
Expensive dedicated lines + long expansion cycles
Poor Performance
Video conferencing lag / streaming frame drops / slow cross-border systems
Compliance Risk
Unclear line compliance, business at risk
Difficult Operations
Hard fault diagnosis, slow recovery
Security Gaps
High risk in cross-border data transmission
Key Advantages
LarkYUN SD-WAN vs Other Solutions
Scheme Comparison Lark SDWAN versus Other Solutions
LarkYUN SD-WAN
Other Solutions
Public Internet
Compliance
Licensed operations, direct carrier contracts, compliant IP resources
Some lack proper qualifications, mixed IPs
No compliance guarantee, extremely high risk
Stability
Multi-link backup, millisecond failover; stable and controllable latency
Mainly single-link, high failover latency; unstable
200ms+ latency, severe jitter; 5%-10% packet loss, frequent interruptions
Operations
Centralized visual management, end-to-end encryption, zero-trust SASE protection
Requires professional configuration, fragmented management; basic encryption
No ops support, self-troubleshooting; no encryption, high data leak risk
Delivery
Plug-and-play, fast delivery, on-demand scaling
Requires professional config, long delivery cycles, complex scaling
No professional delivery, extremely low scaling efficiency
Cost
30%-50% savings vs traditional lines; flexible packages; low ops cost
High bandwidth pricing, rigid packages; high ops cost
Low visible cost, extremely high hidden cost (business interruption)
Core Technical Capabilities
Core technical capabilities
Intelligent Routing
Automatically selects optimal paths during jitter/congestion to ensure business continuity
Intelligent routing + congestion control, 0% packet loss for cross-border access
Application Priority Orchestration
QoS-based traffic prioritization ensures critical applications (video conferencing, ERP, CRM) get priority during network congestion
Real-time Link Quality Monitoring
Continuous active probing of all links (MPLS, Internet) for latency, jitter, and packet loss
Multi-Link Load Balancing
Intelligent traffic distribution across optimal links based on real-time quality and bandwidth
Instant Fault Failover
Active-standby link HA architecture with millisecond-level automatic traffic switching upon fault detection
Centralized Management Platform
Configure once, deploy network-wide, reduce operations costs
Configure once, deploy network-wide, reduce operations costs
Simplified Deployment
Fast deployment mode for pre-configured terminal devices, T+2~3 days go-live
Full Device Compatibility
Supports Windows, MacOS, iOS, Android and more, seamless cross-device access
Centralized Visual Management
Unified console for global node management with real-time network monitoring
Zero Network Modification
No changes to existing infrastructure, plug-and-play, compatible with mainstream routers and switches
End-to-End Private Encrypted Channel
Controllable and auditable cross-border data transmission
Controllable and auditable cross-border data transmission
Security Protection
Connection limits, fake IP protection, real-time anomaly traffic tracing and blocking
Financial-Grade Encryption
International high-strength encryption standards for end-to-end data encryption
Full-Link Encrypted Tunnel
CPE to POP point fully encrypted, backbone network uses dedicated lines, no public exposure
Log Auditing
Comprehensive logging of traffic, applications, NAT and all access behaviors
Global Network Coverage
Global network coverage
Core Coverage Areas
Covered Cities
Core POP Nodes
Cloud Acceleration Nodes
SLA Guarantee
Beijing
Shanghai
Tokyo
Singapore
Dubai
Frankfurt
New York
Los Angeles
São Paulo
Sydney
Johannesburg
Asia
Beijing, Shanghai, Guangzhou, Hong Kong, Tokyo, Seoul, Singapore, Bangkok, New Delhi, Dubai
Europe
London, Paris, Berlin, Rome, Frankfurt, Madrid
Americas
New York, Washington, Los Angeles, Vancouver, São Paulo, Mexico City
Oceania
Sydney, Melbourne
Africa
Johannesburg
Use Cases
Scenarios
Cross-Border E-Commerce
Core Pain Point: Access & Collaboration Blocked
- Slow ERP/CRM access, frequent timeouts
- Laggy video conferencing, inconsistent multi-branch experience
Key Metrics: Full-Link Quality Monitoring
- Access latency (ms) / System response time (s)
- Conference jitter (ms) / Packet loss (%) / Business timeout rate (%)
LarkYUN Solution: Acceleration & Control
- Cross-border acceleration channel: reduce detours, improve stability
- Encrypted transmission: ensure secure cross-border data, consistent multi-site experience
Cross-Border Live Streaming
Core Pain Point: Network Instability
- Packet loss/jitter causes frame drops, audio-video desync
- Unstable uplink bandwidth, congestion during peak hours
Key Metrics: Full-Link Quality Monitoring
- Core: packet loss (%), jitter (ms), failover time (ms)
- Stability: uplink bandwidth monitoring
LarkYUN Solution: Acceleration & Control
- Intelligent routing + multi-link scheduling: real-time monitoring, auto-optimal switching
- QoS guarantee: live stream traffic priority, zero lag at critical moments
AI Applications
Core Pain Point: R&D Efficiency Blocked
- Unstable cloud service access, slow image pulls, dragging build processes
- Git/CI/CD frequent failures, disrupting R&D rhythm
Key Metrics
- Network throughput (MB/s): directly impacts image pull and data sync
- Access latency (ms) and failure/retry rate (%): determines R&D experience
LarkYUN Solution
- Multi-link aggregation & policy routing: ensure sustained throughput, isolate R&D traffic
- Full-link observability: precise fault localization, rapid troubleshooting
Social Media Operations
Core Pain Points & Challenges
- Platform access fluctuations affect efficiency, multi-account environment needs consistency
- Uncontrollable link sources, high compliance risk, no audit trail
Key Performance Indicators (KPI)
- High availability (SLA) guarantee, ultra-low access latency (ms-level)
- Long-term stability and security of account operations environment
LarkYUN Solution
- Compliant contracted lines, unified egress strategy and encrypted access control
- Integrated carrier resources, full-link audit capability, reduced operational risk
Branch Networking
Core Pain Points & Challenges
- Traditional cross-border networks rely on dedicated lines, limited access methods
- High cross-border data latency, fragmented operations, expensive dedicated lines
Key Performance Indicators (KPI)
- Cross-border data latency reduced by 70%+, significant improvement in cross-region efficiency
- Operations efficiency improved by 50%, network cost reduced by 30%-50%
LarkYUN Solution
- Multi-line unified access capability, flexible global network foundation
- Centralized management mode, visualized and automated network operations
Enterprise SD-WAN FAQs
Practical answers covering network assessment, deployment validation, and ongoing operations
What is SD-WAN, and which enterprise networking problems does it address?
SD-WAN, or software-defined wide area networking, centrally manages broadband, private circuits, and 4G/5G links and selects paths according to application quality. It helps simplify multi-branch connectivity, improve cross-border stability, use links more efficiently, accelerate failover, and make operations more visible.
Which business scenarios are suitable for LarkYUN SD-WAN?
Typical scenarios include cross-border offices, overseas branch connectivity, international e-commerce operations, video meetings, live streaming, overseas SaaS, and multi-cloud access. Suitability should be assessed from site count, destination regions, critical applications, current links, and acceptable downtime.
Will employees compete for bandwidth when many people use the cross-border network at the same time?
They can if bandwidth is not allocated properly. Large downloads, video uploads, or live streams may slow down other work. LarkYUN SD-WAN can identify different types of traffic, prioritize important services such as meetings, ERP, customer support, and live streaming, and prevent non-urgent downloads from using too much capacity.
Does an SD-WAN deployment require replacing existing broadband or redesigning the LAN?
Most deployments can reuse current internet or private circuits and connect in bypass, gateway, or software-client mode. Changes to gateways, VLANs, routing, and firewall policies depend on the current topology. Configuration backups, address-conflict checks, and a rollback plan should be completed before cutover.
Will installing SD-WAN affect domestic websites and existing office systems?
Normally it will not. Only selected overseas applications or cross-border services need to use the optimized connection. Domestic websites, printers, finance systems, and other local services can continue using the original network. The required application scope is confirmed before launch, and a plan to restore the original network is retained.
How should an enterprise size SD-WAN bandwidth and backup links?
Capacity should be based on concurrent users, application traffic, upload demand, and peak utilization rather than headcount alone. Video and live streaming depend heavily on upload capacity, jitter, and packet loss, while large transfers depend on sustained throughput. Critical sites should use links with different carriers or physical paths to reduce shared-failure risk.
Can business continue if one network connection goes down?
If the enterprise has two independent connections, SD-WAN can move traffic to the backup when the primary connection fails and reduce downtime. Results depend on backup-link quality and how each application maintains its session. A disconnect test should therefore confirm that meetings, ERP, live streaming, and other critical services recover correctly.
Can the existing SD-WAN service expand when the company hires more people or opens another office?
Yes. The enterprise can add bandwidth, equipment, or sites as staffing and traffic grow, while managing them through the same platform. Before expansion, confirm the new office location, user count, main applications, and peak demand instead of copying the old office configuration and risking insufficient or wasted capacity.
Which factors determine the cost of an SD-WAN service?
Common factors include access and egress regions, site count, bandwidth, dedicated or shared capacity, fixed IP quantity, device type, redundancy level, SLA, and managed-service scope. Quotations should be compared using total cost of ownership, including circuits, hardware, licenses, implementation, operations, expansion, and exit costs.
What should an enterprise verify when selecting an SD-WAN provider besides price?
Verify access resources in target regions, circuit and egress delivery methods, SLA measurement rules, monitoring, incident response, spare equipment, configuration auditing, and the exit or migration plan. Before contracting, run a PoC with real applications and document acceptance metrics, responsibility boundaries, service hours, and escalation paths in the agreement.