This software-driven approach delivers a much better QoEx than possible with router-centric WAN model.
Actively use any transport including MPLS, Broadband and LTE
An SD-WAN virtualizes WAN services including Multiprotocol Label Switching (MPLS), broadband internet services and 4G/LTE, treating them as a resource pool.
But why aren’t more internet connections used for enterprise WAN services? Simple. Historically, the internet was a best-effort amalgam of networks. It wasn’t secure or reliable enough to meet business needs. And it certainly didn’t perform well enough to support latency-sensitive or bandwidth-intensive business applications.
Continuous self-learning and automated adaptation
By continuously monitoring applications and WAN transport resources, an SD-WAN can quickly adapt to changing network conditions to maintain the highest application performance and availability. An advanced SD-WAN delivers the highest levels of end-user Quality of Experience, even if a transport service experiences an outage or a brownout (excessive packet loss, latency or jitter). This improves business productivity and end user satisfaction.
Two key SD-WAN capabilities
Two key features of advanced SD-WAN architectures are:
- Centralized Orchestration. By centralizing the configuration of an SD-WAN as well as application performance and security policies, enterprises can significantly reduce WAN operational expenses.
- Zero-Touch Provisioning (ZTP). With ZTP, configurations and policies are programmed once and pushed to all branch locations without having to manually program each device individually using a CLI. It eliminates the need to send specialized IT resources out to branch locations whenever a new application is added or a policy is changed. ZTP also reduces human errors, resulting in more consistent policies across to enterprise.