Software-Defined WAN (SD-WAN)

Simplify operations, unleash agility with CTA’s Cloud-centric SD-WAN solutions

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Products SDWAN


Enterprises are embracing digital transformation and are demanding a shift to SD-WAN technologies. These technologies promise greater flexibility and agility and is driven by the proliferation of cloud based applications and IoT connected devices.

CTA provides best in class SD-WAN solutions overlayed on CT’s private networks. These solutions offer advanced WAN management controls, such as automatically allocating bandwidth according to current demand. Additionally, we provide failover to 4G / 5G back-ups and enhanced security with encryption, tunneling, and additional firewall layering.

Benefits of SD-WAN

China Telecom Americas offers a proven Software-Defined WAN (SD-WAN) solution suite overlayed on CT’s private networks. Our SD-WAN solution suite gives network teams more visibility and easier control. Additionally, it offers enhanced automation and the agility needed by distributed IT environments.

Global Access

Deploy cloud or on-prem connectivity with greater agility and scalability in China and around the world.

Integrate with Multiple SD-WAN Providers

CT’s backbone integrates with different SD-WAN providers such as Cisco, Versa, and Silver Peak to allow hybrid architectures with network management, data log, data analysis and network performance.

Simplify Operations, Application Delivery

SD-WAN application aware technology reduces operational complexity and centralizes control.

Comprehensive Security Protection Capabilities

Covers full range of security functions such as Next Generation Firewall (NGFW), Unified Threat Management (UTM), Intrusion Detection and Prevention (IDS/IPS), Anti-Virus/Anti-Malware, Web Application Firewall (WAF).

Cloud Network Integration

Industry-leading cloud network resources, supports SD-WAN integrated cloud, agile on-demand service provisioning and delivery, and dynamic resource management/scheduling optimization.

Multiple Modes and Protocols Support

Improve your user experience no matter the network environment by leveraging SD-WAN’s multiple modes and protocols.

SaaS Acceleration

Tap into mainstream SaaS acceleration applications like Offfice365, Salesforce, and Zoom to optimize performance for all users.

Multiple Network Encryption Tools

Promote customer trust with our reliable, highly secure encryptions protocols—TLS and SHA256— to protect customer data security.

Distributed Backbone Resources

Ensure access and robust connectivity for customers in all regions with SD-WAN’s globally distributed backbone resources.

Lower Latency

Unlock outstanding performance with minimal variation, symmetric uploads, and high-speed internet everywhere with CTA and its affiliates high-quality leased lines.

24x7 Technical Support

Keep business operations humming with SD-WAN’s operations and maintenance system and reliable professional SD-WAN + WFX services.

MPLS Evolution

Reduce management and administration costs


Features of SD-WAN

Improved Agility for WAN Managers

Improved Agility for WAN Managers

• Network programmability and automation simplifies multi-cloud connectivity.

• Lite touch provisioning, full MPLS / Hybrid WAN integration support reduces WAN complexity and maintenance.

• Decreases CAPEX and OPEX costs, management, and administrative burden.

Intelligently Manage and Optimize Traffic

Performance Gains from

• WAN optimization and acceleration that adapt in real-time to bandwidth demands and network conditions.

• Load balancing/auto-failover (MPLS, Ethernet, DIA and 5G/4G).

• Dynamic policy-based Routing (PbR) / Path Selection.

Strengthen Security at the Edge

Strengthen SD-WAN Security at the Edge

• Connect customers’ overseas branches with greater flexibility.

• Centralized control regardless of the underlying transport technology or application architecture.

Use Cases

Global Freight Transportation Company Use Case

A global air and ocean freight transportation company was looking to further enhance their IT capabilities. They believed that MPLS cloud solutions were out of their budget, which limited their network performance and competitiveness.

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Industries Logistics

Frequently Asked Questions

What types of SD-WAN solutions are you offering?

CTA offers self-managed solutions through various leading SD-WAN brands. We manage the underlay network and have developed integrations to offer hybrid SD-WAN branch and MPLS core architectures. This increases network management agility inside China and also improves cross border China WAN links.

What are the most popular use cases?

Hybrid WAN: Most enterprises choose a hybrid WAN model. This allows them to easily connect branch offices and mobile users. The most available and best path is steered through an MPLS / IP VPN network or authorized IPSec tunnels. These tunnels can be set up with Versa, Viptela, or Silver-Peak SD-WAN technologies.

Dynamic DIY or Managed SD-Branch: Operators can choose dynamic DIY or managed SD-Branch. If they opt for dynamic DIY, they must provision and manage business policies and devices themselves. If they elect managed SD-Branch, we will handle installation and ongoing support.

Seamless Direct-to-Cloud Connections: Transform traditional hub-and-spoke architectures to a secure, direct-to-cloud WAN architecture. This avoids the delay and added costs of backhauling traffic over MPLS to a firewall in the data center.

Intelligent Internet Acceleration: CTA’s affiliate SDN network fabric enables customers to adjust remote sites and optimize traffic flows across their WAN.

Remote Access: Fast Access Soft Terminal (FAST) is a one-of-a kind enterprise-grade remote access tool with high security, stability, and flexibility globally.

What is the solution design/architecture?

We recognized that network programmability and automation would simplify multi-cloud connectivity. To achieve this, we built a global backbone spanning 26 sites. This backbone is cloud-connected and SD-WAN enabled, providing superior Quality of Experience (QoE) and centralized control. It works with any underlying transport technology or application architecture.

Ready to get started?

Get in contact with a China Telecom Americas product and solutions specialist today.

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