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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: Twisted Pair (TP)

Posted Tuesday, July 22, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/twisted_pair.mp3
Let's go down to the wires. Today, Paul will go through some of the history and basic characteristics of twisted pair . 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 request Read More...

PodSnacks: Simple Network Management Protocol (SNMP)

Posted Monday, July 21, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/snmp.mp3
Today, we're responding to a request for information about the Simple Network Management Protocol (SNMP). This is a critical protocol for any IP -based network. It defines how managers (software with a supervisory function) communicate with agents 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: Power over Ethernet (PoE)

Posted Monday, July 14, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/poe.mp3
Ethernet has become such a critical technology today, any time we can spend on it is time well spent. Today, Ethernet serves as a premises-based network technology that can tie together virtually every piece of communication gear in a corporation or residence. Read More...

PodSnacks: Compression Concepts

Posted Friday, July 11, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/compression.mp3
Both bandwidth and storage have associated costs. Although the cost of storage is continually dropping, there remains places where we are paying a cost that motivates us to minimize information wherever possible. When we use wide area networks, we pay 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: Integrated Services Digital Network (ISDN)

Posted Wednesday, July 09, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/isdn.mp3
We recently talked about the difference between a T-1 and a PRI. PRI is one of two interfaces defined in a service known as ISDN . Michel will take you through the basics. You can listen to (or download) the PodSnack by clicking here , or you can use Read More...

PodSnacks: T-1 vs. PRI

Posted Tuesday, July 08, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/t1_vs_pri.mp3
Recently, we posted a few PodSnacks on voice-related issues, including long distance (LD) and switched vs. dedicated access to LD. Today we're going to focus on trunking services and talk about the difference between a T-1 and a PRI trunking service. 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: Internet Control Message Protocol (ICMP)

Posted Friday, July 04, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/icmp.mp3
Did you know that IP talks to itself? In many instances, when something goes wrong inside an IP network, there are small control messages generated that provide information about what happened. The same protocol that accomplishes this can also be used 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...

PodSnacks: Extensible Markup Language (XML)

Posted Wednesday, July 02, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/xml.mp3
One of the core concepts underlying the World Wide Web is the concept of a markup language. Markup languages are programming languages used to provide information about information: a form of metalanguage. Confused? Take a listen and Michel will explain Read More...
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