Latest Posts

Once again, we’re prompted to write because there isn’t a lot of documentation on a particular subject, and we’re interested in passing along configurations that we got to work.  SRST [...]

For the past couple of months I’ve been looking at ways that people prepare for the CCIE Routing and Switching lab. I’ve talked to a lot of recent CCIEs and [...]

As Greg Ferro says, IPv6 is the gift that keeps on giving. Perhaps you’ve seen the news: Customer problems that could occur. It is a very useful list for anyone [...]

Recently I needed to build out a few CCX scripts for a customer and I had to brush off some old notes on creating and editing prompts. The process of searching through my notes led me to the conclusion that it may be worthwhile to post a quick (hopefully) blog…

Working as a consultant at Chesapeake NetCraftsmen is great, because I get to see a lot of interesting network problems. Sharing information about these problems is valuable, because it is [...]

I am delighted to announce that Chesapeake NetCraftsmen is a Cisco Gold Certified Partner now! My special thanks go to the team members who worked through the audit process, David [...]

My colleague David Hailey and I have been slowly compiling a list of write-ups on SIP endpoints with CUCM and iPhone SIP Clients. I recently added several blogs to the repository that cover SIP clients on the Android OS. For a change of pace I decided to test a SIP…

Virtual switching refers the the several ways in which switching has been and is evolving to adapt to and provide suitable functionality for virtual machines and blade server chassis. Virtual [...]

I just returned from Enterprise Connect 2011 (EC), which was previously known as VoiceCon. They changed the name because of the trend towards unified communications, video, and converged networking. I [...]

I’ve been pondering cloud services / cloud computing for a while. I’d like to pass along some thoughts. It happens that a reader asked a good question about https://netcraftsmen.com/blogs/entry/data-center-l2-interconnect-and-failover.html. I [...]

I have commented recently in Tech Field Day #5, which was Feb 10-11 in Silicon Valley and one of the delegates, Matthew Norwood wrote about it in his blog Applied [...]

At Free OnLine Dictionary says Marked by the ability to recover readily, as from misfortune. A resilient network will continue to operate when a failure occurs. A good design will [...]