Traditional WAN
A traditional Wide Area Network (WAN) often relies on dedicated MPLS lines to connect offices. While this approach is reliable, secure, and well-understood, it is also costly and less flexible. It works best for organisations with highly predictable traffic patterns and minimal cloud usage, but can struggle to adapt to changing business demands.
SD-WAN
Software-Defined Wide Area Networking (SD-WAN) uses software to intelligently route traffic over multiple connection types, including broadband, LTE, and MPLS. This allows for better cloud integration, cost savings, and improved application performance. However, it requires new skills for deployment and management, so choosing the right vendor and training your team is essential.
When to Choose Traditional WAN
If your organisation runs mission-critical applications that demand consistent low latency and you have limited cloud adoption, a traditional WAN may still be the best choice. Its predictability and stability make it suitable for environments where changes are infrequent and downtime must be minimised.
When to Choose SD-WAN
If you have multiple branch offices, remote workers, or a growing reliance on SaaS and cloud applications, SD-WAN can offer significant advantages. Its agility, cost-effectiveness, and ability to optimise performance for cloud traffic make it ideal for modern, distributed businesses.