Intelligent Data Centres Issue 11 | Page 46

FEATURE Kelly Ahuja, CEO, Versa Networks Rather than simply directing traffic based on routing protocols, the right SD-WAN solution can identify, classify and secure traffic based on the application ID. Enterprises need this kind of software- led approach, one that lets them set up application-intelligent VPNs and connectivity with minimal configuration. For example, a site-to-site full-mesh VPN topology can be cost-effectively and 46 Issue 11 quickly deployed to deliver the highest levels of redundancy, which supports latency-sensitive applications like voice and video. the full benefits that a business intelligent WAN can provide, only an application- aware solution that optimises the user experience will suffice. Hub-and-spoke VPN topologies can also be set up to support Point-of-Sale or electronic medical-record applications for compliance purposes, to ensure those services are routed through a secure hub site. Enterprises need to be looking at network solutions that are software and cloud- defined for the entire infrastructure that you typically find in the wide area, in the branch office or remote location. SD-WANS need to be business intelligent The right kind of SD-WAN solution will encompass all of the traditional network functions that typically involve multiple Edge devices from many disparate vendors and manage them as virtual functions in the one piece of software. SD-WAN that is designed for the cloud abstracts application awareness and intelligence from the underlying network infrastructure, enabling enforceable policies to be applied based on application experience to create a business intelligent WAN. SD-WAN can lower bandwidth costs and reduce network operations costs, while delivering the network agility and reliable connectivity enterprises require. Not all SD-WAN solutions are truly application-aware, let alone geared to maximise the user experience. To achieve Within this software stack will be contextual visibility between the all- important intersection of security and the performance of the network. What organisations should be looking for is an SD-WAN solution that is built for the real-time app and multi-cloud era, with ‘programmable’ including security fully embedded in the core architecture. ◊ www.intelligentdatacentres.com