Demand for Bandwidth
The Challenge of Adding Bandwidth
Internet bandwidth—broadband of any flavor, or LTE—is nearly ubiquitously available, quick to deploy, flexible, and significantly less costly. But these links have a reputation of unpredicatable quality (delay, packet loss, jitter). Adding a broadband link to an existing MPLS link also adds complexity—often prohibitive in a large network with thousands of sites—of managing “critical” traffic to flow over the MPLS link (which traffic? how to identify this traffic? how many rules? how many sites?), while allowing the “non-critical” traffic over the Internet link. The Internet link traffic also has to be secured, but the VPNs run only on the MPLS infrastructure.
Benefits of SD-WAN
Links are automatically detected and bandwidth — real-time throughput, not just a passive SLA — is measured, monitored, and used to optimize traffic steering services.
SD-WAN enables economical expansion of bandwidth by aggregating WAN circuits of any type, from any provider, to relieve congestion or provide faster response even for single application flows.
Virtualization and automated configuration of business and security policies enable one-click, centrally controlled, automated traffic steering services.
Application performance is guaranteed through application-aware per-packet link steering and on-demand remediation capabilities to achieve optimal performance for all traffic types including real-time voice and video.
Auto VPN Setup
Security policies defined on the central orchestrator trigger built-in SD-WAN capabilities to establish VPNs where and when needed, over any transport link. This enables secure communications over both branch-office-to-data-center-or-cloud VPNs, as well as branch-to-branch VPNs.