So the debate is whether to use encrypted tunnels or perimeter-based controls for security -- in other words, whether it is better to place more or less emphasis on the network perimeter? David ...

There are essentially two competing views concerning the best path forward when it comes to injecting some much-needed agility into networking environments within the data center. A report from ...

Burstiness in your telepresence traffic stream is not a feature. Last week I wrote about the tradeoff between an overlay network and a converged network for carrying telepresence or high-end video ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More The early internet concept of an overlay network has an important role to ...

OB Most telepresence adopters turn to service providers to obtain dedicated bandwidth. Why? Because telepresence requires a great deal of bandwidth; up to 6 Mbps per-screen, per-room. IT managers also ...

In the WAN, where the optical transport network plays a key role, SDN is now beginning to emerge as a new technology tool that offers the promise of managing However, despite the potential usefulness ...

My last blog discussed using an overlay versus using a converged network for telepresence. For either approach, the next step is to analyze the bandwidth demand of the telepresence and determine which ...

Overlay networks consist of a series of virtual or physical computers layered on top of an existing network. The purpose of the overlay network is to add missing functionality without a complete ...