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Difference between SDN and SDN- WAN

  • Difficulty Level : Easy
  • Last Updated : 01 Jun, 2021

Prerequisite – Local Area Network & Wide Area Network

1. Software Defined Networking (SDN) :
SDN was built for supporting computer needs to found in Local Area Networks (LANs) also as in commission Provider networks. The goal was to develop dynamic, flexible, scalable connectivity to support changing demands within the DC (data center) and on core networks. SDNs are directly programmable, providing an agile centrally managed platform that decouples the Control Plane – decisions about where traffic is routed – from the info Plane – which determines how traffic is forwarded.

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2. Software-Defined Wide Area Networks (SD-WAN) :
SD-WAN may be a commonly used alternative solution which allows organizations to link together numerous distributed locations through the utilization of broadband and MPLS. The most difference between SDN and SD-WAN is that SD-WAN focuses on delivering a good Area Network (WAN) which connects multiple sites together.

Difference :
Both SDN and SD-WAN are supported an equivalent methodology of separating the control plane from the info plane to form networking more intelligent. Like identical twins, they could look and sound an equivalent , but they’re quite different from each other. The main difference between SDN and SD-WAN is what they’re used for.

Difference between SDN and SDN- WAN :

S.NO         SDN SDN-WAN
1.Software Defined Networking.Software-Defined Wide Area Networks.
2.Operates a LAN or a service provider’s core network.Enables connections between networks and users across geographies.
3.Programmable by the user to deliver bandwidth on-demand.It is programmed to give operational simplification, integrated security and traffic prioritization.
4.Offers visibility into the real-time analytics and also in the  core network performance.  Offers visibility into the real-time analytics and also in the WAN environment.
5.Provides a centralized view for automation of network services. Focuses on software-defined application routing capabilities.
6.Designed by the user.Configured by the vendor.
7.Variations of commodity and specialized switching hardware.Off-the-shelf x86 appliances – physical, virtual, cloud.
8.Technology has taken a long time to mature.Recent technology but maturing very rapidly.
9.Similarities of separating the control and data plane.Similarities of separating the control and data plane.


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