Tag Archives: VoIP


Why WAN Metrics are not enough in SD-WAN Policy Enforcement

On the topic of measuring WAN metrics, most engineers think to look at the standard statistics of loss, latency, jitter, and reachability for determining path quality. This is good information for a routing protocol that is making decisions for packet flow at layer 3 of the OSI model. However, it is incomplete information when looking at it from the perspective of the overall user experience.  In order for an SD-WAN solution to provide materially better value than a typical packet router, it must look beyond the metrics considered by the router. Continue reading


The Network 3.0

During the past 3 decades, we have seen a monumental growth in networking technology. From RFC-1163, which describes the beginnings of BGP in 1989 to the cloud and software defined networks of today, our voracious appetite for bandwidth and services have begun to outpace the networking industry’s ability to deliver. Continue reading


Is WAN Optimization Dead?

As an ever present staple of technology in the inventory of any major enterprise, WAN optimizers have begun to lose their luster. While there are still probably thousands in widespread use throughout the world, evolution has conspired to put them on the endangered species list. Do you remember thicknet, thinnet, or token ring? Yup! That kind of endangered! Continue reading