Virtualized service that connect and extend enterprise network over large geographical distances.


A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows enterprises to leverage any combination of transport services – including MPLS, LTE and broadband internet services – to securely connect users to applications.

SD-WAN Architecture

Key advantages of SD-WAN
Reducing costs with transport independence across MPLS, 4G/5G LTE, and other connection types.
Improving application performance and increasing agility.
Optimizing user experience and efficiency for software-as-a-service (SaaS) and public-cloud applications.
Simplifying operations with automation and cloud-based management.

Application of SD-WAN

Improved Op-Ex, replacing expensive Multiprotocol Label Switching services with more economical and flexible broadband
High availability, with predictable service, for all critical enterprise applications
Dynamically routed application traffic with application-aware routing, for efficient delivery and improved user experience
Multiple hybrid active-active links for all network scenarios

The new WAN

SD-WAN addresses the current IT challenges. This new approach to network connectivity can lower operational costs and improve resource usage for multisite deployments. Network administrators can use bandwidth more efficiently and can help ensure high levels of performance for critical applications without sacrificing security or data privacy.

Today's IT Challenges

Times have changed. As businesses adopt the use of SaaS and infrastructure-as-a-service (IaaS) applications in multiple clouds, IT is realizing that the user application experience is poor. That is because WANs designed for a different era are not ready for the unprecedented explosion of WAN traffic that cloud adoption brings. That traffic causes management complexity, application-performance unpredictability, and data vulnerability.

Further opening the enterprise to the Internet and the cloud exposes major threat and compliance issues. It is extremely challenging to protect the critical assets of an enterprise when applications are accessed by a diverse workforce, including employees, partners, contractors, vendors, and guests. Enabling broadband on the WAN makes the security requirements more acute, creating challenges for IT in balancing user experience, security, and complexity.