InternetiinWANin

InternetiinWANin is a term used to describe the integration and convergence of Internet-based connectivity within enterprise wide area networks (WANs). It refers to designs and architectures that treat the Internet as a primary or carrier-like transport for branch connectivity and cloud access, often through software-defined WAN (SD-WAN) capabilities, secure overlays, and cloud-based services.

Although not standardized in formal literature, the concept has emerged with the growing adoption of broadband Internet, cloud services, and evolving WAN management strategies. In practice, InternetiinWANin encompasses using public Internet links, VPNs, and software-defined control to connect branch offices, data centers, and cloud resources, complemented by traditional private circuits where needed.

Architectures typically deploy edge devices at sites that run dynamic path selection, policy-based routing, and encryption, with central controllers or orchestrators coordinating traffic, security, and quality of service. Cloud and SaaS access is often routed directly from the branch to the Internet, reducing backhaul.

Common deployment patterns include hybrid WANs, where MPLS cores are complemented or replaced by Internet transport; and fully Internet-based WANs, relying on SD-WAN and secure connectivity to cloud services.

Benefits include lower costs, greater scalability, faster provisioning, and improved cloud access. Challenges include variable Internet performance, security concerns, service-level variability, and management complexity. Practices such as end-to-end encryption, zero-trust security, and continuous monitoring are recommended.

See also SD-WAN, MPLS, VPN, WAN optimization, cloud networking, WAN as a service.