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tHAWT Episode #104: Bovine Tags

Posted Sunday, May 04, 2008 11:38 AM by thindson :: 0 Comments
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Attachment(s): http://hill-vt.com/podcast/tHAWT/tHAWT_050208.mp3
In this week's episode, Paul , Michel , and I discussing a range of topics. The bovine theme was enhanced due to a recording a well-respected instructor once did for us. He discussed SONET in terms of cows and trucks , a discussion we resurrected Read More...

PodSnacks: Synchronous Optical Network (SONET)

Posted Friday, March 28, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/sonet.mp3
At the core of virtually every carrier and MSO's data and voice network sits a technology we have been using since 1984. By some estimates, over 99% of all of the voice and data traffic that touches a carrier or MSO network crosses a SONET facility Read More...

PodSnacks: Four-Fiber Bidirectional Line Switched Ring

Posted Wednesday, September 12, 2007 6:20 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/4f-blsr.mp3
Today we conclude our examination of SONET ring types. In the past two days we looked at unidirectional path switched rings (UPSR) and two-fiber bidirectional line switched rings (2F-BLSR). Today we look at the larger four-fiber bidirectional line switched Read More...

PodSnacks: Two-Fiber Bidirectional Line Switched Rings

Posted Tuesday, September 11, 2007 7:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/2f-blsr.mp3
Now isn't THAT a mouthful? Today we continue in our examination of SONET ring types. Yesterday we looked at the unidirectional path switched ring (UPSR). Today we'll take a quick look at the two-fiber bidirectional line switched ring (2F-BLSR). Read More...

PodSnacks: Unidirectional Path Switched Ring

Posted Monday, September 10, 2007 7:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/upsr.mp3
We've talked before about SONET . If you caught those sessions, you know that SONET protects circuits using a ring architecture. What you may not know is that there are actually three kinds of SONET circuits. Over the next three days, we're going Read More...

PodSnacks: Multimode vs. Single-mode Fiber

Posted Wednesday, September 05, 2007 7:00 PM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/mmf-smf.mp3
Today's words aren't so much related specifically to SONET as they are related to optical fiber in general. Today we look at two classes of fiber known as multimode fiber (MMF) and single-mode fiber (SMF). These two types of fiber tend to be found Read More...

PodSnacks: Virtual Tributary

Posted Tuesday, September 04, 2007 7:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/vt.mp3
As promised, our word today is associated with SONET . Yesterday we looked at Optical Carrier (OC) and Synchronous Transport Signal (STS). Today we're going to look at Virtual Tributaries (VT). A VT is a structure designed to carry sub-rate payloads Read More...

PodSnacks: Optical Carrier vs. Synchronous Transport Signal

Posted Monday, September 03, 2007 7:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q3/oc-sts.mp3
Today (and tomorrow) we're going to look at a few words associated with SONET . Today we focus on the terms Optical Carrier (OC) and Synchronous Transport Signal (STS). These terms are often used interchangeably, but they have a specific meaning. Read More...

PodSnacks: Generic Framing Procedure

Posted Tuesday, June 26, 2007 8:25 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/gfp.mp3
Time for that fifth and final installment in our series on Next Generation SONET (NG-SONET). Tomorrow we'll begin a series on T-carrier systems, because I promised it to some of my students. It will be a bit on the technical side, so hang on to your Read More...

PodSnacks: Link Capacity Adjustment Scheme

Posted Monday, June 25, 2007 10:22 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/lcas.mp3
A new day, a new week, and the fourth installment of a five-part series on Next Generation SONET (NG-SONET). Orals are over and I'm ready to pick up the thread of our discussion last week with a look at the Link Capacity Adjustment Scheme (LCAS). Read More...

PodSnacks: Virtual Concatenation

Posted Friday, June 22, 2007 6:40 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/vcat.mp3
I start oral exams in about 20 minutes, but I wanted to get this post out before I head for class and then hit the road for home. This PodSnack continues the Next Generation SONET (NG-SONET) theme I started, and this one deals specifically with one of Read More...

PodSnacks: Next Generation SONET

Posted Thursday, June 21, 2007 8:16 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/ng-sonet.mp3
Well, I'm still on the road. The class is almost wrapped up, with only the oral exams to be completed tomorrow. Meanwhile, time to get another PodSnack out. Yesterday I chose to talk about Ethernet over SONET (EoS). At the end, I mentioned that Next Read More...

PodSnacks: Ethernet over SONET

Posted Wednesday, June 20, 2007 8:33 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/eos.mp3
I'm on the road this week and teaching a class on optical networks and a bit of wireless. So I figured I'd just harness some of the material I'm teaching for today's PodSnack. SO for today I've chosen to talk about Ethernet over SONET Read More...

PodSnacks: SONET (and Cows)

Posted Friday, May 18, 2007 7:10 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/sonet_bov.mp3
This is our 100th Episode! Balloons and Fireworks all around! To celebrate, we're doing two things. First, we're giving something away. But you'll have to listen to find out what and how to get it. Second, we're bringing back a former Read More...

PodSnacks: SONET

Posted Monday, March 19, 2007 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/sonet.mp3
At the core of virtually every carrier and MSO's data and voice network sits a technology we have been using since 1984. By some estimates, over 99% of all of the voice and data traffic that touches a carrier or MSO network crosses a SONET facility Read More...