02/01/2021
Why SD-WAN:-
•The role of the WAN was to connect users at any location to applications hosted on servers in the data center
•Dedicated MPLS circuits were used to ensure security and reliable connectivity
•Now businesses are embracing digital transformation and rapidly adopting technology to increase productivity, reduce costs and transform customer experience
•In this digital world, applications are moving out from data center to the cloud and the users are becoming mobile users using a diverse set of devices
•Now businesses are adopting SaaS and IaaS across multiple clouds and IT Folks are struggling to provide satisfactory experience for business-critical applications
•Traditional WAN networks rely heavily on data center infrastructure to provide cloud connectivity. However, it carries the inefficiencies of higher latency, heavy data center load and a single point of failure
•Explosion of bandwidth demands puts a significant stress on network capacity with continuous upgrade of their WAN circuits or putting their attention towards internet circuit.
•Exposing an enterprise to the internet has risk of threat and compliance issues
•SD-WAN address these challenges
•This permits more network automation, simplification of operations, provisioning, monitoring and troubleshooting.
