Hello and welcome back to I see anyone interconnecting Cisco networking devices Part one.
This is absurd. 3 to 2 villian and shrunken concepts. I am Triton dear. Oh, and I'll be your instructor for this course.
The last video went over the lesson 3.2 introduction
and his fib sewed were recovered. When a villain is and how it communicates over trucks
projections we're gonna look at but the veal in our virtual land concepts. And we'll also look att tthe e trunk in concepts and how it all works together.
A quick pre assessment here, what is the port deck next switches and allows villian communication.
So this would be the port that you is set between switches.
Give me a few seconds.
It is the trunk port.
All right, so virtual lands or V Lance. So if you think about a land and his most general term is all devices within the broadcast of me and I know we'd hit that up in the last lesson
everything about what a broadcast frame is sent all devices in that broadcast. I mean, are you gonna receive it?
Which means they all have to process it right, so you don't want your broadcast domains to be too large. So foreign V lines in order to split up a broadcast of me and you're gonna have to use a router or a Nora switch that is not directly connected. So
you think about, like, two switches that aren't connected at all. You know that wouldn't they would have two different broadcast a means, or you could have a router in between that would break that up. So villians allow for a bunch of broadcast remains on a single switch.
That way, you don't have to. You know, you you can set everything up logically,
right? You continue going to group all the devices and one department, or by tight by printer by I P camera instead of having to do it by location.
So logically, this makes a ton of sense for management and everything else. So what you're doing is you're reducing the number of devices in a broadcast domain,
which is gonna limit the amount of unnecessary processing that each host has to D'oh!
And hopefully you recognize this little graphic in the bottom right that we had in the last lesson.
So you see the two devices up in the top villian 10 and the bottom devices and feeling and 20 and both on the same switch. That's the idea behind the land's. Otherwise, you got to have them on two separate switches.
Trunk ng. What this does is it connects switches. So
you know, all four devices in the top orange box would be able to talk in all four devices in the bottom blue box would be able to talk.
So as of now, the weights up that wouldn't be able to do in her communication between the bottom left top right, they wouldn't communicate that way
what it does. So you connect your two switches together so you have your trunk trunk ing poor trunk ports. So what it does as a villain tag
Ah, on top of the frame header. That's already there.
So there's a few ways you have so and I don't want to. We'll get in a little bit,
but so you can actually set this up. You can have
Let's say this bottom
interface here on the switch and say this is F. A. Sales is 2023
on both sides, right? Let's say this is 22 over here. Yeah,
So you can separate them
like this. You don't really need to set up any tagging
or what you can do here. We will use trunk ing to where we're going to use one link to send all the frames over instead of using up to separately. Because if you think about if you have, ah, say 20 ve lands in your
just, then your small network there,
um, that's 20 ports that are gonna be used up on each switch. And that leaves
a lot less for user devices.
So we can do is set up a you know, trunk port link between the two that is going to tag the frames.
So here is kind of what it looks like. She had that one link in between That's gonna allow Pavilion 10 and delaying 20 friends to be sent over that one link. Okay,
So straight. A quick demonstration of how it adds that bill an idea Headers that either that frame.
So I'm gonna get a pen out here,
so I'm just gonna shorthand, uh, internet with e t h r e wth. So
let's say we got a frame starting over here
he's gonna go in the switch is gonna say, Okay, I'm trying to get over to Sue,
right? Just gonna go in here
and was grabbed that same each and that frame.
It was at a villain 10 header,
and it's gonna go into this switch.
Gonna strip that villain head her off.
I was gonna have Ethernet again. That goes to sue.
So just between that shrunk port is gonna add that one
1,000,000,000 header I d
around the post assessment. Where does that the land I d get added. I know we just talked about it.
Hopefully you can remember
part. It is the
frame header. Remember, That villain is a The lines are a layer to technology.
In the next episode, when we look at the trucking protocols to be an 802 that one. Q and I s cell. We're gonna talk about sending data between the V Lance. And as always, if you have questions, you need help. Feel free to send any message. Otherwise, thank you for washing this lesson before you see the next one