To help accelerate SD-WAN market growth and enable the creation of powerful, new hybrid networking solutions optimized for digital transformation, MEF published the industry’s first global standard defining an SD-WAN service and its service attributes—MEF 70. An update to that standard—MEF 70.1—includes new service attributes for underlay connectivity services, new measurable performance metrics that provide visibility into an application’s performance within the provider network and across multiple service providers, and the infrastructure to support application-based security.
We created the SD-WAN service standard within the context of our MEF 3.0 Global Services Framework. Combining standardized SD-WAN service with dynamic high-speed underlay connectivity services enables service providers to offer solutions with unprecedented user- and application-directed control over network resources and service capabilities.
SD-WAN is the way to interface policy with an intelligent software-defined network. Standardization makes it easier for integration to work across multiple types of underlying transport services. Ultimately, the combination of standardized and orchestrated overlay and underlay services provide a better customer experience, with improved service capabilities, and guaranteed resiliency.
Setting the standard for secure, high-performance services. Read the market brief below to discover how MEF is tackling SD-WAN and SASE managed service provider challenges.
The diagram below illustrates all of the definitive components that together help define a standard MEF 3.0 SD-WAN service. One of the key elements is the SD-WAN Edge, which is a function existing at the subscriber site, e.g. an enterprise customer premises, that connects the SD-WAN user-to-network interface (UNI) to the underlay connectivity service (UCS) UNI. This function applies policies to the IP packets entering the SD-WAN service, determining how they are classified into application flows and forwarded across the underlay connectivity services according to the policy configuration.
Much like MEF’s service standards for underlay connectivity, an SD-WAN service consists of SD-WAN end points, specifically SD-WAN Virtual Connection End Points that together form the SD-WAN Virtual Connection. These end points represent the demarcation between the responsibility of the SD-WAN service provider and the subscriber. As an overlay service, SD-WAN involves multiple underlay connectivity services. In the sample below, there are two such services, which can leverage either MEF 3.0 underlay connectivity services, like Carrier Ethernet or other services, for example, an Internet broadband service. Furthermore, a unique element of SD-WAN services is the ability to forward traffic directly to the Internet from an SD-WAN UNI, which is termed Internet Breakout.