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CompTIA Network+ (2009 Objectives) Tutorials
Ethernet Basics / Ethernet Network Types
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Subtitles of the Movie (CompTIA Network+ (2009 Objectives) / Ethernet Basics / Ethernet Network Types)
In this video I want to talk about Ethernet Network Types. Now let me kind of lay some groundwork here. Ethernet standards that we've talked about in separate videos in this course, and we've kind of touched on it in videos like Network Topology, Cabling issues, and Network Standards. All of those things can be kind of rolled together or sliced and diced in different ways to be utilized in various configurations and so the Network Types are really based on different cabling device technologies that we utilize in our network design and these things are constantly evolving. It's like every time you go out there and look around somebody's got a different category of cable. We had 3, then 5, 5E, then 6 and 6A and now there's category 7 out there that's coming. And with each one of these cables there's more pairs, there's different stuff going on inside the cable that lets them pass more and more data. Then we have different devices. We have network cards that'll do 10 or 100 megabits and then gigabit cards and 10 gigabit cards and fiber and so forth, so understand when we're talking about the Network Types there's no magic here. You actually have to put all the pieces. Now the Ethernet standards that are out there that correlate to these different types are, first of all, basic Ethernet. This is where we started when we first saw Ethernet. Then we got the enhanced version which was Fast Ethernet. Then we went to Gigabit Ethernet and then 10 Gigabit Ethernet and now we've even gone faster than that. But these are the four that you really need to be aware of on the Network+ exam. Now let's take a look. In this video I'm just going to cover first of all the 12 types that you should know and then we'll talk about basic Ethernet and use that as a launch point and drill into the other ones in separate videos. The 12 Network Types you need to know about are: 10Base-T, 100Base-TX, 100Base-FX, 1000Base-T, 1000Base-X, 10GBase - and make sure you notice that there is a G in here now, OK, because this is something else that confuses when we look at how they basically name these various types. If you don't catch that G there it starts to look a lot like the 10Base or 100Base stuff. But anyway, 10GBase-LR, ER, SW, LW, EW, and then 10GBase-T. Now I know what you're thinking. What are you talking about? What is all this acronym and 10GBase and 100Base? These are simple names for the various lengths, cable types, device types, transmission rates that you can use and I'll show you an example here. For example, just plain old basic Ethernet, the way it actually started out, was called 10Base-T, or it was one of the options. Now what does it mean? Well, this is based on Category 3 or 5 Twisted Pair cabling. It was really Category 3 because at the time Category 3 was all we had. 10Base-T gives you a maximum distance of 100 meters or about 300 feet and it lets you transfer your data at about 10 megabits per second so you can see here the 10 which corresponds to the 10 megabits per second, T tells you that it's Twisted Pair cabling, and on and on, OK? So this kind of gives you a little hint about where you're headed here. Now in the next few videos we're going to talk a little bit more about the different - fast Ethernet, gigabit Ethernet, and so forth - and the various Network Types that are available within those general categories. So just kind of step through these with me and it'll make sense to you. This is not that hard to understand but it can get a little confusing with some of the nomenclature that they use.
Tutorial Information
| Course: | CompTIA Network+ (2009 Objectives) |
| Author: | Mark Long |
| SKU: | 34216 |
| ISBN: | 1-936334-90-9 |
| Release Date: | 2011-04-29 |
| Duration: | 6 hrs / 91 lessons |
| Work Files: |
Yes |
| Captions: | No |
| Compatibility: |
Vista/XP/2000, OS X, Linux QuickTime 7, Flash 8 |
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