Daffodil International University

IT Help Desk => Internet => Topic started by: masud895 on March 11, 2020, 04:09:26 PM

Title: SD-WAN (Software-Defined Wide-Area Network) and Benefits of SD-WAN
Post by: masud895 on March 11, 2020, 04:09:26 PM
A software-defined wide-area network (SD-WAN), is a network that is abstracted from its hardware, creating a virtualized network overlay. Operators can remotely manage and quickly scale this overlay, which can span over large geographical distances. It is an application of software-defined networking (SDN).
An SD-WAN can connect several branch locations to a central hub office or cover multiple locations in a large campus such as a university campus.

Because SD-WAN is abstract from hardware, it is more flexible and available than a standard WAN. It relies on four central components:
•   Edge connectivity abstraction
•   WAN virtualization
•   Centralized management
•   Elastic traffic management

The Benefits of SD-WAN

The global SD-WAN market is predicted to swell to $5.25 Billion in 2023, according to an IDC forecast in July 2019, as more businesses embrace the benefits of a virtualized network.

The key benefits include:

•   Increased bandwidth at a lower cost since the network traffic can be provisioned for optimal speeds and throttle low-priority applications.

•   Centralized management across branch networks through a simple management console, which reduces the need for manual configuration and on-site IT staff

•   Full visibility into the network, as the controller gives operators a holistic view of the network.

•   More options for connection type and vendor selection, since the network can reside on COTS hardware and use both private and public connections to route its traffic.

Source : https://www.sdxcentral.com/networking/sd-wan/definitions/software-defined-sdn-wan/