What is SD-WAN? say GOODBYE to MPLS, DMVPN, iWAN… w/ SDN, Cisco and Viptela

What is SD-WAN? say GOODBYE to MPLS, DMVPN, iWAN.. w/ SDN, Cisco and Viptela 1What is SD-WAN? say GOODBYE to MPLS, DMVPN, iWAN… w/ SDN, Cisco and Viptela

Software-Defined WAN (Wide Area Network). What is it? How is it different from DMVPN and iWAN and are we still using MPLS? SD-WAN is changing the game and it took me a bit to WRAP MY HEAD AROUND IT because it is STRANGE!!


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What is Software-Defined WAN (or SD-WAN or SDWAN)?

Introducing a Software-Defined WAN (SDWAN)

The software-defined wide-area network (SD-WAN or SDWAN) is a specific application of software-defined networking (SDN) technology applied to WAN connections such as broadband internet, 4G, LTE, or MPLS. It connects enterprise networks — including branch offices and data centers — over large geographic distances.

A WAN might be used, for example, to connect branch offices to a central corporate network, or to connect data centers separated by distance. In the past, WAN connections often used technology that required special proprietary hardware. SD-WAN, on the other hand, utilizes the internet or cloud-native private networks. SD-WAN decouples the network from the management plane and detaches the traffic management and monitoring functions from hardware. It relies on four central components:

  • Edge Connectivity Abstraction
  • WAN Virtualization
  • Policy-Driven, Centralized Management
  • Elastic Traffic Management

Source: www.sdxcentral.com