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The holy grail of policy control is consistent, secure, end-to-end control. That means identifying users or end devices at the point they connect to the network, assigning policy, and enforcing [...]

In order to troubleshoot a unified communications system, IT leaders should have a written list of common problems and a description of how to resolve those issues. A quality unified [...]

The Information Technology team’s job is never done – it just keeps getting bigger. This blog is about the challenges in finding suitable staff and skills, and some options addressing [...]

As you move real-time applications to the cloud, you might relinquish some network control. However, several mechanisms are available to monitor application performance. In general, with real-time applications, a person [...]

A recent blog contrasted routers and switches. This blog contains some related thoughts and is essentially Part 2 of the prior blog. In some recent design situations, I’ve spent some [...]

The easiest way to record a greeting on a call handler in Cisco Unity Connection is to use the Greetings Administrator, but access to it requires some setup.  One thing [...]

Latency, congestion and sluggish TCP stacks can plague application performance, but understanding data center interconnect technologies is key.  What factors influence the performance of a high-speed, high-latency data center interconnect? Redundant [...]

Giving yet another nod to the ever-expanding world of security on Cisco equipment, we’re now looking at how to set up secure SIP trunks and secure hardware conferencing using a [...]

In a prior blog, I covered Equinix Cloud Exchange (ECX) Fabric. If you’re asking, “what’s an Equinix?”, please see the prior blog. In that blog, we saw that Equinix can [...]

Through some of the work I’ve recently done, I’ve learned more about what products and services Equinix provides. This blog will discuss one of the services Equinix offers, one which [...]

In doing designs lately, I’ve been increasingly running into situations where I have to think hard about using a traditional router or an L3 switch. I’ve made some comments about [...]

I’ve decided I have some real reservations about OSPF routing. I was going to title this blog “Is OSPF Evil?” but decided that is not appropriate. At worst, OSPF is [...]