Broadband Communities

NOV-DEC 2018

BROADBAND COMMUNITIES is the leading source of information on digital and broadband technologies for buildings and communities. Our editorial aims to accelerate the deployment of Fiber-To-The-Home and Fiber-To-The-Premises.

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N O V E M B E R / D E C E M B E R 2 0 1 8 | w w w. b r o a d b a n d c o m m u n i t i e s . c o m | B R O A D B A N D C O M M U N I T I E S | 6 5 well as a backup path for your existing MPLS / Metro-E VPNs." MEF SETS QUALITY FRAMEWORK In scaling SD-WAN, service providers will have to ensure QoS with metrics and address performance issues. However, the lack of an established standard means service providers don't have a common blueprint. A joint MEF and Vertical Systems Group survey revealed 80 percent of respondents cited the lack of a standard service definition as a "significant challenge" in offering SD-WAN services. e MEF 3.0 SD-WAN Service Attributes and Service Definition standard will provide a common standard for several access types: Carrier Ethernet, IP, optical and SD- WAN. All these will be orchestrated over programmable networks using Lifecycle Service Operation (LSO) Application Program Interfaces (APIs). Set to be released next year, MEF's service definition specifies and sets forth requirements for an application- aware, over-the-top WAN service that uses policies to determine how application flows are forwarded over multiple overlay networks regardless of underlying technologies. Support for the new standard is high, with more than 30 service and technology providers contributing to the effort. In the meantime, service providers will continue to manage circuits and provide QoS metrics. According to CenturyLink, the onus of circuit management depends on the service arrangement. "In the hybrid solution case, the customer is buying SD-WAN and hybrid WAN access from us, meaning it's on us to solve – which is why we are seeing several customers looking for a managed hybrid solution instead of a do-it-yourself SD-WAN solution," Barrett says. Windstream says SD-WAN software will enable it to pinpoint problems with the access circuits, regardless of the source. "SD-WAN enables us to help customers diagnose issues they may have with another broadband vendor," Frane says. "We can show them there's high jitter or high latency being delivered into their network from certain circuits, and they can use that data to go back to those underlying providers for remediation." SD-WAN offers many circuit choices, but service providers will fit each business site with the best price and speed solution. Being flexible will allow service providers to not only attract new SD-WAN customers but also retain existing customers. v Sean Buckley is the associate editor of Broadband Communities. He can be reached at sean@bbcmag.com.

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