Traditional WAN vs SD-WAN solutions

 

1. Traditional WAN : 

Traditional network is based on completely hardware network devices which mostly rely on Multi Protocol Label Switching (MPLS) for resilient and efficient network traffic flow. Number of hardware devices are installed along with proprietary circuits to route IP services to their intended clients. IT teams gives a lot great effort to manage the network as it involves layers of underlying hardware installed.

Scaling of traditional network is difficult as it needs a proper advanced planning along with required network infrastructure to set up and run. A Traditional connects many Local Area Networks (LANs) and Virtual Private Networks (VPNs) and it is limited to enterprise, branch, and data center. It allows to prioritize your data, voice, and video traffic on network. Security issues and management difficulties are the major problems in traditional WAN now a days.

2. Software Defined Wide Area Network (SD WAN) : 

SD WAN stands for Software Defined Wide Area Network which is a software defined approach to manage Wide Area Network. In SD WAN software controls everything starting from connectivity to management and providing service. It is a virtual network approach which combines traditional WAN technologies, such as MPLS, LTE and broadband connections.

SD WAN is good for global enterprises as it provides a better and secure application performance as well as optimized cloud connectivity and simplified management. Means in the cloud centric world SD WAN are more preferable than traditional WAN. Software Defined Network (SDN) is utilized which helps in determining the optimal way of routing.