Data Communications [rss]

PodSnacks: V.35

Posted Thursday, August 21, 2008 6:00 AM by mgilbert :: 1 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/v.35.mp3
Let's look at one of the many DTE to DCE interface specifications. Our topic today is the older, but still widely used, V.35 interface. I'll take you through it's basic characteristics and applications. As usual, you can listen to (or download) Read More...

PodSnacks: Line Code

Posted Tuesday, August 19, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/line_code.mp3
Today we're going to go back to the wires, and follow up on another PodSnack we did on digital signaling . Today we're going to look at a few example line codes that are considered digital signaling schemes. I'll talk to you about how they Read More...

PodSnacks: Routing Table

Posted Thursday, August 14, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/routing_table.mp3
We've had several PodSnacks where we've made reference to something called the routing table . It's time we take a few moments and talk about this function, which is present in all routers and even in your desktop or laptop computer, assuming Read More...

PodSnacks: Default Route

Posted Tuesday, August 12, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/default_route.mp3
Yet another basic concept, this one related to routing : the default route , also known as the default gateway or gateway of last resort . This is an important concept in routing. The Internet is a vast internetwork with millions of attached networks. Read More...

PodSnacks: DTE and DCE

Posted Thursday, August 07, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/dte-dce.mp3
I went back to the wiki to see what remained to be recorded before I start branching off into completely new articles, and was amazed to discover we never recorded a session on the basic distinction between data terminal equipment (DTE) and data circuit-terminating Read More...

PodSnacks: Fibre Channel over Ethernet (FCoE)

Posted Tuesday, August 05, 2008 6:00 PM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/fcoe.mp3
In recent days, we've heard about Fibre Channel (FC) and Fibre Channel over IP (FCIP), both of which are technologies related to storage area networks (SAN). Today we look at a third technology in this set, one that has not yet completed the standards Read More...

PodSnacks: Fibre Channel over IP (FCIP)

Posted Thursday, July 31, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/FCIP.mp3
We recently heard a PodSnack about Fibre Channel (FC), a networking technology commonly found in storage area networks (SAN). As storage has become more and more critical to organizations, many have sought ways to extend their storage capabilities across Read More...

PodSnacks: Fibre Channel (FC)

Posted Tuesday, July 29, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/fibre_channel.mp3
I do this series in the cracks of my professional life, and sometimes my personal life. Lately there haven't been a lot of cracks so I've been a bit remiss in my postings. But I'll make it up to you, faithful listener. This week the schedule Read More...

PodSnacks: Unshielded Twisted Pair (UTP) vs. Shielded Twisted Pair (STP)

Posted Wednesday, July 23, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/utp-stp.mp3
Building on yesterday's PodSnacks, today, Paul will take you through the difference between shielded and unshielded twisted pair . It should come as no big surprise that the primary difference is... wait for it... shielding! (Sometimes I just crack Read More...

PodSnacks: Root Name Server

Posted Thursday, July 17, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/root_name_server.mp3
We recently did a PodSnack on the top-level domain (TLD) structure in DNS . In that PodSnack, I made reference to the root name server s in the Internet, and promised to explain it in another PodSnack. Well, there's no time like the present! Tune Read More...

PodSnacks: Protocols

Posted Wednesday, July 16, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/protocol.mp3
Again we go back to basics. Communication is all about protocols : agreements that facilitate how and what we communicate. Indeed, the study of telecommunications is all about the study of protocols. In today's PodSnack, Paul takes you through this Read More...

PodSnacks: Top-Level Domain (TLD)

Posted Tuesday, July 15, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/tld.mp3
You use DNS every day, and probably never think about it. You most likely don't even think of what happens when you type in (or click on) a name like www.hill.com . What happens, however, is a relatively straightforward process of mapping the name Read More...

PodSnacks: Application Services Layer

Posted Thursday, July 10, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/application_services_layer.mp3
Today we go back to the world of network models and architectures, and we take a quick look at the highest layer of the four-layer TCP/IP model: the Application Services Layer . This is the layer that is concerned with the various tasks we are trying Read More...

PodSnacks: Multiprotocol Label Switching (MPLS)

Posted Monday, July 07, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/mpls.mp3
Well, we've been threatening to do this for a while, so today is MPLS day. Tune in as Michel explains the basic concepts. You can listen to (or download) the PodSnack by clicking here , or you can use the Flash player below. If you have an idea or Read More...

PodSnacks: Network Interface Layer

Posted Thursday, July 03, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/network_interface_layer.mp3
Today we go back to the world of network models and architectures, and we take a quick look at the lowest layer of the four-layer TCP/IP model: the Network Interface Layer . It's not the most exciting thing we could talk about, but it is, in essence, Read More...
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