For the last 3 weeks, my colleagues have written on the topic of IWAN and its various components. Ido wrote about the basics (and more) about IWAN, Kiran on how to get twice the bandwidth with PfR, and Hector on how Glue Networks improves the IWAN experience for IT. As the name suggests, the ‘WAN’ in Intelligent WAN is a very important element but we can’t forget why we need an intelligent WAN – the branch or store that sits on the other side. It’s the place where 80% of employees of enterprises reside and where content explosion is happening with cloud applications, video training, and other business applications need to be delivered to. So it would be an understatement to say the branch architecture and how applications are delivered and hosted is important.
Network optimization is a touchy subject for many in the IT world, and a particularly thorny issue for the Wide Area Network (WAN). The idea that the network architecture as designed cannot meet the needs of tomorrow is the cause of much discussion, anxiety and in some cases, gnashing of teeth. However, the reality is that the rate of change of applications and ways the WAN is utilized is accelerating, and the methods of designing, testing, implementing and troubleshooting of today are not keeping pace. In addition, traditional services offered throughout the WAN only offer a partial view of the capabilities of what may be available.