The Comcast SD-WAN offering, from Comcast Business, pulls heavily on the cable providers’ gigabit-speed broadband and fiber-based connections. These two connections are software-controlled links between enterprise locations in the SD-WAN.
The broadband uses the Data Over Cable Service Interface Specification (DOCSIS) 3.1, which can reach download speeds of up to 10 Gb/s. However, Comcast only claims speeds of up to 1 Gb/s. Major elements of the Comcast Business SD-WAN are application-aware routing, secure VPNs, stateful firewalls, automation through policies, central management, use of virtual network functions (VNFs), and using its ActiveCore SDN platform as a foundation.
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