SD-WAN Technology for Improving Network Performance

Software-defined wide area networking became an important topic for many organizations seeking greater control over network performance and cost during the early expansion of cloud-based infrastructure.

This legacy overview documents how i-NETT, formerly Voice Smart Networks, addressed SD-WAN technology as part of broader discussions around WAN modernization and network efficiency.

SD-WAN separates network control functions from underlying hardware. This architectural approach allows organizations to manage wide area networks more centrally while using a mix of transport options. Internet connections could be used alongside or in place of traditional private WAN technologies such as MPLS, depending on operational requirements.

During this period, SD-WAN was commonly evaluated by organizations transitioning toward virtualization and increased cloud adoption. The technology supported traffic routing across multiple connection types, including broadband internet, MPLS, cellular, and wireless links. This flexibility allowed businesses to prioritize application performance while managing costs more predictably.

The emphasis was on understanding how SD-WAN fit within an existing network environment rather than positioning it as a universal replacement. Considerations included reliability, security controls, application sensitivity, and operational complexity.

This historical perspective reflects how SD-WAN was discussed as part of evolving WAN strategies rather than as a standalone solution. Current guidance on cloud connectivity and modern communications architectures is maintained on the i-NETT cloud and communications solutions authority page.