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PodSnacks: The Chained Layers

Posted Thursday, April 24, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/chained_layers.mp3
Back to the OSI Reference Model for a moment. You may sometimes hear reference to the chained_layers . This is a reference to the first three layers of the model, so named because chaining them together creates the fabric of an inter-network. In today's Read More...

PodSnacks: Firewalls

Posted Wednesday, April 23, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/firewall.mp3
If you are connected to the Internet (and if you aren't, how on earth are you reading this blog?), then you might be in trouble. The Internet is a packet network that works on the datagram model: each packet is routed independently and all of the Read More...

Wireless Trends for 2008

Posted Monday, April 07, 2008 6:57 AM by mgilbert :: 0 Comments
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CTIA (I think that used to stand for Cellular Telecommunications Industry Association, but this seems to be yet another organization that has ditched the expansion and shifted to just the acronym) hosts an annual trade show. This year the trade show was Read More...

PodSnacks: World Wide Web

Posted Monday, April 07, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/www.mp3
We use it every day. You're using it now (if you're reading our blog)! Some even think that the World Wide Web is the Internet . It's not. It's actually just one of many applications that can be accessed via the Internet, or ride on the Read More...

Reality Check: IPTV

Posted Friday, April 04, 2008 10:28 AM by mgilbert :: 0 Comments
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In a few recent blogs , I took up the issue of IPTV and what the future might look like. It's exciting, and I firmly believe that we are on the cusp of a revolution in how we get our television fix. But I was thinking about this a bit the other day, Read More...

WiMax, IT, IPv6, and Net Neutrality

Posted Thursday, April 03, 2008 1:55 PM by mgilbert :: 0 Comments
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You don't really expect me to link those together, do you? I suppose I could. Maybe all of those WiMax systems will need to be IPv6 compliant, and they will create yet another source of traffic overload that will re-spark the net neutrality debate, Read More...

Mobile Broadband Tips and Comparisons

Posted Wednesday, April 02, 2008 1:19 PM by mgilbert :: 0 Comments
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As I was wandering through my usual flood of email, newsletters, and RSS feeds, I stumbled on this little gem . The author calls it a road-warrior's guide to mobile broadband, but I don't think I would go quite that far. It's a little thin Read More...

Security, Productivity, Web 2.0, Mashups, and Business Intelligence

Posted Tuesday, April 01, 2008 10:06 AM by mgilbert :: 0 Comments
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Go ahead, dare me to write something that ties all of those terms together! Actually, it's rather simple. If you know what they mean, you can probably see the connection yourself. Security (in the information space) is that never ending quest companies Read More...

Engineering, Politics, Regulation, or Social Dynamic?

Posted Friday, March 28, 2008 9:46 AM by mgilbert :: 0 Comments
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I'm a bit of a geek. I confess. And when I teach telecommunications, I tend to bring a technical flavor to what I teach, though I strive to make sure it is at an audience-appropriate level. Spending time trying to turn a sales person into an engineer Read More...

Zip Meets Zap: The Next Security Problem

Posted Monday, March 24, 2008 6:50 PM by mgilbert :: 0 Comments
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Just when you thought you had finished loading that antivirus package, the spyware detectors, the anti-spam filters, and configuring that firewall (for those of you that actually do such things), you discover that the bad boys have found a new way to Read More...

PodSnacks: NAT vs. NAPT

Posted Monday, March 24, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/nat-napt.mp3
Network Address Translation (NAT) and Network Address Port Translation (NAPT) can be confusing concepts, especially since most people are doing NAPT and calling it NAT. In today's PodSnack, Michel explains the concepts to you. You can listen to (or Read More...

How Fast is that DSL?

Posted Saturday, March 22, 2008 2:02 PM by mgilbert :: 0 Comments
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I like to highlight articles that underscore a basic telecommunications concept. This article , which came out just over a week ago, reports an announcement that Verizon is going to shift some attention to its DSL services in some of its market areas. Read More...

Sometimes an Innocent Website is a Hazard

Posted Friday, March 21, 2008 12:51 PM by mgilbert :: 0 Comments
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Many of us are used to thinking of websites as being broken rather simply into "trusted" and "not trusted." The trusted ones are safe and would never serve up malware. The untrusted ones are ready, willing, and able to load bad code Read More...

From IP over Everything to Everything over IP

Posted Wednesday, March 19, 2008 5:43 AM by mgilbert :: 0 Comments
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When the Internet Protocol (IP) was first created, the mantra was "IP over everything," a joke that took me 15 years to get! They even had T-shirts made up. After all, that was the Great Insight: if you wanted computers connected to different Read More...

PodSnacks: Routers vs. Layer 3 Switches

Posted Monday, March 17, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/layer-3-switch.mp3
The role of a router is relatively simple: it routes packets and operates at Layer 3 of the OSI Reference Model . This industry, however, is never content to leave anything simple. Enter the Layer 3 switch to muddy the waters. In today's PodSnack, Read More...
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