My Welcome back let's get the show on the road.
So I again introduction to the TC VIP section.
All right now what we're going to do in this particular section.
It's all over about the TZP ABC was designed and implemented by the Department of Defense.
Yes they're the ones that did it way back in the day in case of anything happens during a call or not
in a wartime situation we would still be able to communicate with each other.
All right.
He's a baby at the very core of all things in networking.
All right is the very core of all networking things.
So you really need to have a comprehensive and functional command of it meaning you need to understand
what's it for.
OK what do we need.
What do we need to understand because when you're troubleshooting you need to understand is what layer
am I learning to your our money initially.
OK.
Is it.
Is this the application layer.
Is it the transporter or a WHOLE SHOW HOST Where is the Internet.
There is a network access.
There's a link where what layer am I running into so I know what I need to swap.
OK.
And how should I look at it.
Now that I know more or less what's going on.
So you really need to have a really good solid foundation on TGP being one of the key topics we need
to understand is how to teach you about the model error's map over.
Yes because the TV model was the original model we had our layers there are four layers and that's what
we went through.
But it was very not only with a vague but general in a sense that a lot of things work on one layer.
So they made it even more granular in the site.
They made seven letters.
Why you have your physical area datalink where you have your network where right and you keep going
up you know you're trying to force them and all that.
I mean so.
Session where you have all these different things in all these years that they are responsible for and
you as a network engineer or a network technician and network person period that deals now or tell you
what I mean.
Yes I do.
Jane you know on an hours I look real quickly.
OK.
Good job.
That's not reality.
But I'll give you a job.
OK let's go.
So you need to get a good understanding because if you don't understand this then how are you going
to attack an issue.
What do you think the problem's going to be.
Hey I can't get to the Internet or I can't print.
Let me check the printer.
Why are you going to check the printer.
Why don't you check even for that connectivity.
All right.
This is the kind of thing that I'm talking about that's why this is very important.
There's this foundation on 9:21 maps or to the voice I because we're more now for Miller with the website.
Cisco is bringing back now a new five letter model though we will be looking into.
Now I said we're a lot of very brief history first came on the scene in 1973 two or six years old.
And this thing around.
OK.
In 1978 it was divided into two distinct protocols.
TCAP are going to say they're either holding a connection oriented an IP connection less.
Eighty three.
Nineteen eighty three.
He was replaced.
Replace them or replace the NCP.
They were controversial as and was authorized as official means of data transport for anything connecting
to the ARPA net.
So now it's no longer NCB.
Now it's TCAP you remember not even that long ago where have you had an apple use Apple talk about NetWare.
Not in the blink of an eye in the remake.
A while.
Well you know Microsoft got into meaning.
Yeah.
All these different protocols that you had to have in order for them to be able to talk to each other.
Now is the IP period.
Everybody in the world uses TCAP IP so you need to understand OK most of the development work on that
is TZP have an ad that you use.
University of Berkeley in northern California.
OK TZP work Soilwork package it to subsequent releases with us and offered to other universities as
they wish they bother if they are other distribution tape and they became the foundation for the tremendous
success and unprecedented growth of today's Internet.
If the IP is what made the internet it is the protocol of the Internet.
That's how we get to where we need to go.
Right is TZP IP.
It is essential because it breaks down everything that we need to know.
And that's why we map things over to the oys high model we Matthijs over to all the different than the
old all the original V.I.P model to the new TBP model.
We need to know.
You need to know or sort of occasion purposes.
Yes but this is more for a real world type scenario.
You will use it in telecommunications when we would check communications between the switch and the
cell tower or the routers that existed underneath the cell tower.
We did checks and there were layer two checks we were armed to see when we get anything back and we
didn't pay.
It could have been that particular connector that was there that was messed up it could have been a
raw idea.
Or is it going to be a million different thing that was wrong.
But we did our checks.
OK.
And we need to know what we were looking at.
Obviously the software that you're going to use is some sort of third party software that's going to
help you make it easier to understand what's going on.
So let you know hey so going on here are not receiving.
To guide you along the way but definitely you need to understand now really you know hey it's cool.
You know party talk and talk about this in a party.
I'm sorry for you.
But hey at least you know I was talking to party in the I.T. world.
You know the day today started and when it replays the NCP for recall and then also in the 80s he became
the foundation.
So nice it makes you look good.
OK.
But the rest of it as far as getting the understanding of what it does specially for troubleshooting
purposes is really important.
All right.
So we came from 1973.
OK.
And forget that I was thinking over the phone do the math in 1973 and in 78 it was two different verticals.
That's why they call it sweet.
They're full of articles and sweet.
OK.
All right then I'll show you in actual.