13 hours 57 minutes
Hello and welcome back to I see anyone interconnecting Cisco Networking devices Part one this is episode 314 and the Land Physical Standards and Wireless on Triton. Daryl and I will be restructured for this course.
No less. Video went over the two tier campus like designing the core, the collapse core design. And lastly, we took a look at the three tiered layer design.
It's also to recover in a review of the physical land standards and get a brief introduction into wireless lands.
Yeah, he said, Well, look at the Eastern standards again and look at the wireless standards and design
first. How many non over channels do you think are in 2.4 gigahertz?
But it is three channels 16 and 11 as we'll see here in a minute.
So these are not standards. Like we said way back in a previous lesson. It is the IEEE a toe to toe three standards. So one land can have many different physical types of medium as long as they fell That Ethan, that's a toe to toe three Standard. Right,
So let's see you. So generally gonna run cat fire if he catch six Kate copper cable from the access layer to your computers or between the wireless access points.
Um, because it wouldn't be a economical to run fiber those devices, it just
economical. And a lot of devices don't support it yet.
But a lot of times you will run fiber
between your distribution and your core layers.
But they all use that data to death three standards. So it all works together.
So some factors you're gonna do's and choosing the correct cabling is the availability on your campus of that cable in type
S o the max distance between termination points. So think about, you know, distance between buildings.
You're talking about 300 feet or 100 meters for Ethernet cable in the copper cabling.
You're talking anywhere
a couple 100 meters to almost 40 kilometers with fiber cabling, depending on how much you want to spend. What kind of cabling with single motor multi mode,
whether anything is caused aswell
to run a you know, ah, 100 foot Ron or cable run. You're not gonna run fiber. If it's just not economical, you're gonna throw in a 100 foot copper run of Ethernet cable
s O t i e defines the actual cable quality standards. So if you remember the ta 5 68 be that is the cable Pennell standard
for eternity for the cat six caddy five the Ethernet. So they defined twist rates the actual quality of the cabling.
So the higher you go in, the in the number, the better it is. So the cat three cat five e cat six get six A.
The higher you go, the better the quality.
So go ahead and jump into wireless. That is the Triple 802 dead 11 centered and WiFi is actually trademarked by the WiFi alliance.
So if you wanna cool alliance to join, you got one.
So a few termine ality points here a wiper w ap is a wireless access point.
A W L. C. Is a wireless lan controller.
So the AMA manage frequencies that SEC designates is 900 megahertz, 2.4 gigahertz and five gigahertz. So the ones you're probably familiar with the 2.4 of the five gigahertz that's we're gonna use on our
devices and router awhile. Sexist points. So think of the higher frequency like five gigahertz is got more bandwidth and be faster was gonna be able to go less distance.
They had 2.4 gigahertz.
So you know that you're sending up wireless. And let's say a park wide open space 2.4 is gonna be better, because it'll reach farther.
So as we sent in one of the pre assessments, 2.4 has 11 channels for public use. And in those 11 channels, there's three non overlapping channels, which is channel 16 and 11
in the five gigahertz, with little difference. You actually have four bands available. Each of those has a bundle of channels available in each band, and what it comes down to is you have 23 non overlapping channels.
So the 2.4 gigahertz, especially if you live in like an apartment complex or something that usually just oversaturated and you run into interference.
So in five years when you're 29 over having channels,
you have a lot more chance of not dealing with interference from our devices.
So we're gonna go ahead and continue on to more wireless here.
So when a solo network and generally the switch the wireless access point router that all combined into one device. Sometimes the modem is as well. So the Warners device actually was access was known Zatanna, Zatanna, Miss Lee, the hardware to say, to control the wireless local area network.
So it does his own thing. It doesn't need a secondary device to tell it what to do. Essentially, Um so whatever the sexist point does is it defines the name of the wireless land or the S S I d. That's the one that you actually see when you go to connect to a network
on what it it also should do it. She has to convert the 802 down 11 frames, the wireless frames that's receiving from the user and sending to the user into that a 2.3 copper cabling and fiber, you know, Ethernet standard to send back through the network.
It also has to for those frames appropriately, so it as a senator right place
should authenticate new devices. If you have your w p, a two star set up something like that.
So the Enterprise network, you'll want to set up a wireless lan controller because of you. If you just have them all, it's autonomously set up. Then you have to go configure each one and like you know, let's say that
you wanna move one and then you start realizing there's interference and you gotta change this. And so we're listening Control. You can sit back and let that
control them all from one spot.
So there's some are smart ones that automatically determine the best channels and
to use for less interference.
And you get the most range some you have to just do yourself. It's not too bad.
So a lightweight access point. So what? That does it. Ford's data between the wired and wireless lands you know, 802.3 811 using through the wireless land control using what is known as the Cap WAP Protocol, or the control and provisioning of wireless access points of protocol
is a tongue twister as well,
so it will go ahead and jump into the post assessment here. What is not a determining factor when considering the physical media to buy free now,
all right, it is the minimum distance. It's not really necessary when considering media,
and the next lesson that we're gonna get back into the lab, we're gonna start implementing some virtual lands or V lands. I thought this was a funny picture, so we chose it.
And as always, if you guys have questions, need some help? Feel free to shoot the message. I just think you're washing this course, and I look forward to seeing the next one.
This course will enable students to understand virtualization and cloud services, and network programmability related to LAN, access and core segments.