Hello and welcome back to ice. Anyone interconnecting Cisco Networking devices. Part one
This episode 313 The Campus Land Apologies. I am Trenton there when I will Be your Instructor for this course,
the last video one of the collision and broadcast domains and had a quick, brief introduction into villains in this absolutely recovered the different campus land designs.
First, we'll look at the two tier campus lane design with a few apologies terms,
and lastly, we'll look at these three tiered campus land design.
As always, we start off with a pre assessment. What is the layer called that connects all the distribution layer switches
All right, it is the core player,
so a two tier designer collapse core
it has the access and distribution layers will have a diagram here for you in the next slide, so you will see. So what a campus land is is a lane that's going to support devices in a building or multiple buildings that are close. So you're not talking about a
you know, you have one site on this side of town, and on the other side of town you had your other site. That's that's not a campus land.
This is one that couldn't be generally the wired together, you know, with some fiber
or just copper cabling home.
So, you know, I'll have the diagrams for the recipes in In, uh, huger slides here. The start of I start design is
think of it more like a logical contest. You had that one switch in the middle of central device that connects all of your
other devices. So I think all of your
if you were to put a switch in the middle your table and connect all of your different computers around it like a star shape.
It's kind of what it means to be in full mesh is a design that connects a link between each device.
So as you can imagine, this requires a lot of cabling. It has the most want redundancy. So if you lose a link,
it's not a huge deal because you have redundancy like crazy
but is costly and requires a lot off manpower and physical cabling. So partial match is just what it sounds like. A connects a link between some of the nose, but not all of them,
like your Access Larry devices they're going to be
your switches that connect to your wireless access points. Your I p cameras here and you divert and use a rice is like computers, printers, stuff like that. So
the distribution list switches. They're usually beef your switches sometimes layer three switches. These so they actually route a little bit between the two between the access layers.
So these will help. Creator don't seem connected. He went to the access layer to to to your design.
So go ahead and go to the next page.
I'm gonna get deep N o. And I'm gonna draw in the cabling
So if we start over on the left,
and what I want here.
So just go ahead and connect all these access layers here real quick.
So these are just and use devices, computers. So here
we're going to do is we're gonna check here,
the excess senators distribution. So these icons here,
these are your layer three switches, by the way.
So we're also gonna go for redundancy. So we're gonna have this one connect all over here
and stretched all over here. Then he'll connect here.
Ah, you go over there.
And then we're gonna have these two distribution layer switches connect to each other,
do a few channels in between,
and then we'll go from here to the way in
just kind of ugly design. Um,
but you get the idea. You have the redundancy between a distribution layer and the access layer is going to connect to your and use devices.
So here's what I was talking about, what I've seen. We had the star design here, so I'm gonna go ahead and draw on the cabling for that.
So this one just real simple. Imagine the cabling
So see how it kind of creates its star design. So
usually physically, your cable is not gonna look like this. Um,
but logically, it will.
So here's what we're talking about. What? I want full measure. This is just six switches. So he
sir, I'm gonna connect all these, right, And then he has to go to here.
All right. So all of them are connecting, right?
Describes. A lot of came in with the good thing is, you know, let's say that
this this cable here goes out,
but to get to that switch. You could still go to here and then down here,
or even e. I mean, he could fall any one of these routes. You know,
it's just there's redundancy like crazy, but it is costly, and
it just requires a lot of cable,
so we'll go ahead and jump into the three tier design.
So this is useful when two or more buildings are being used. And, you know, between the redundancy on the distribution layer is just becoming costly to physically run all that, uh,
the redundancy cables between devices.
Um, it's just unmanageable to run off on the cables, so eventually gonna put in a core layer is gonna connect your distribution layer.
So what it does is aggregated these air very powerful switches.
Very expensive, too. So go ahead and jump into the design for that one.
for sync here, understand
I don't know why that keeps happening,
and I'm not gonna do that for redundancy. Between distribution here,
I'm just gonna draw the redundancy between the distribution
connect to the core.
Okay. To that core he connects to here
and he connects to this one.
And both of these will connect to be when?
So here we have some redundancy. You know, uh, this cable goes out, it still has the other one. If this one goes out, he could still go through this router. So there's still a bit redundancy and it takes the work load off.
Distributional. Because imagine, you'll have, let's say, three different distribution layer or buildings
that all connected the same court so you could have
and in our building than you have, you know,
more out of this building.
So all of these air going to connect to that core layer
instead of having to create that redundancy between the entire distribution layer
will jump into the post assessment here, what? Two layers, Aaron, the collapse core design.
All right. It is the distribution and access layers
next up. So we're gonna look at the land, physical standard choices and the wireless. And I really wish I had this mean when I was describing the Mac address table. That would have been phenomenal. What I did not. So
here it is. Now it is always a few guys have questions some helpful for you should be message. Otherwise, thank you for washing this intro or this course for a seat in excellent.