Hi again.
And we have in our fifth layer a layer, which is called session.
Well, basically in this layer, it is the same as presentation and application, which we have in our
next module, which is DCP IP model, well, basically precision and presentation and application.
They conclude that the the the they have the same machines, such as computers, routers, also wireless
routers.
I mean, the smart machines, smart phones, etc..
Well, indecision, it controls conversations on sessions, dialogue control entered.
And to gritty and reliability, descriptive name.
Then we have in the six layer that format in either.
And as I compression and encryption.
And then we have in the seventh layer, the application.
It provides services, protocols to applications such as F2P service, HDB.
Oh, I don't know as an MP for administration is empty before mailing.
I don't know.
FDR, before transferring it is for file transfer protocol F2P, the abbreviation for file transfer
protocol in in the future, you will you will understand what we need protocols for and also you will
understand why we.
Why we use it, these protocols and revelations now for session and presentation application, what
we call the message that this from the transport to these next layers, which are the 5th, the 6th
and the 7th, we call it data.
And for the message that we have here, we call it an encapsulation.
Now what we have in the CPA IP model, it shows us in the network access, which include the physical
and that I think it is the network interface with all these protocols here or.
And for that and internet network.
We have only the network, and we use the following protocols I, B, R or B and I I C MP.
Then we have in transport was to disappear and you did this.
This is very, very important and we are going to see in the future why then we have the obligation
with encapsulation data.
I'm not going to say the message anymore.
I'm going only to say encapsulation.
We have data and we have the other protocols such as.
HDP as MP and MP, FTB, F2P as F2P, HDP as we have laws of protocol amid.
Basically, there are about.
Then thousands protocols.
10000.
I don't remember exactly which is 100000 or 10000 protocol, which is.
For us, as humans, it is impossible to remember.
And we should remember the many protocols that we use.
And now I'm going to go back to our our main belief, which which you will see more detailed information
about the things that I didn't explain here.
Because we are here for not wasting time.
We are going to see why we use it.
Communication rules such as protocol and we call the TCP IP transmit the transmission control protocol
internet protocol.
We have here the protocol, as I mentioned for emailing the MPP, we have to provide transfer protocol
A..
It protects transport protocol.
They are very interested in protocols we use are going to use them a lot.
And here in this part of our PDAF, you are going to find out everything you want to know about Ozzy
anticipate IP model.
And let's get in to the main part in this judge in this chapter.
And see you in the next video.