Log on back once again.
Now we're in the holes two holes layer or the transport layer could be interchangeable either one.
We just came from the application layer.
Now for calls on the host holes layer VCP this is a connection oriented protocol.
Why.
Because before it communicates to its destination labor device node it will create a virtual circuit
and say Hey are you ready to receive information from me.
Yes I am ready to receive information from you.
OK on what to say you get two.
OK I acknowledge that you sent me to my.
Please send me another Mike.
OK I will send you another bite.
Did you get it.
Yes.
Well you know why I think we can increase the window size.
And maybe you get a little bit more OK.
Go ahead and see what I'm saying.
Is not good for us for a little dramatization here.
Are you going to say what's going on.
I would use the analogy with the TZP eat all the TCAP through a handshake.
I got to draw taking all boxes.
And the guy on the ground OK got too rough and tough guys out there and they're all gone.
Hey here we go one.
He's got to go.
Come on.
Whoa.
Come on.
Go.
I say throw toward it.
I'm throwing all the time.
So there I go lounging there talking back and forth to each other how much they can handle.
And that's what the CCP does.
OK.
It says I'm ready to receive the boxes they are sending me.
OK.
OK here I go.
So are there any acknowledgement or negative.
Hey listen I didn't get that last you Sammy is on the ground.
I hope he doesn't go out.
OK.
So it's ok I'll resend it or you can reset the box but it will send a packet.
OK.
So that's what's going on is a constant communication that's going on to making sure that the packets
are getting there.
There are sequins.
So when it gets to the other side they can put them back in order again because when everything gets
broken up as is going down the or OCI or least one down the TV when everything is broken up.
And each Lear has its own specific recall their unit or information that's going to put on there.
So I want to get the other side and we have put everything back together.
But TZP Yes it is a connection oriented protocol.
All right.
And it's known as the next year around it because it establishes a connection or a virtual surrogate
with the destination device.
It is full duplex.
I cannot guarantee a reliable accurate but establishing all these terms and conditions in addition to
error checking.
The problem with that because it does all this is that a lot of overhead.
It's a lot of work.
Doesn't mean we're not going to use it just better get bigger pipes or mean bigger pipes.
I mean you know cut six and what have you.
You go a bit.
Gigabit Ethernet tengah the all that you know all this stuff.
So bugger's TCAP is what everyone is using Matalan a little bobble full duplex air one troubleshooting.
OK.
All right then some switches come in today.
I have tubeless set have Dubus y OK.
We're using no less than five.
Five concern and receipt.
OK.
It has the wires or pairs to to send to receive.
Come on.
I make sure you don't have a duplex mismatch.
Make sure that your switches were there to alert the I and your routers their interfaces are running
at full duplex.
All of them.
Because if not what's going to happen you're going to have a duplex mismatch and then who cares if you're
running TCAP.
OK who cares.
There you have catsuits because now we're going to run into problems.
We're going to run slower because that's what we're going to have to he's running full Bernhardi money
half what we really want the source be.
We're going to wait to get the information and then once I receive and I look at it again knowledge
then I'll send it back.
No.
So please to avoid any kind of Duplaix makes Miss lache or mixed batch whatever mismatched mismatch.
Okay.
And also speed the bandwidth.
Make sure the bandwidth is correct.
OK sure the bandwidth is correct.
They're both We're in the same type of bandwidth on your interfaces that will allow us you don't have
a bandwidth mismatch.
OK.
So that is very important because if he does run a full duplex it doesn't make any sense for your devices
or your interfaces you'll be running.
Great whole away from.
Now we go to UDP your unit here basically the scaled down economy.
I like that economy model of TZP which is why you can be sometimes referred to as a temp Oracle.
Basically you he doesn't create any kind of virtual Soroka doesn't do any kind of sequencing.
OK there is no windowing or anything like that.
So it just sends it to the ATP.
I said I believe I said earlier that in the end as you just both depending on what you're using what
you're doing I should say you to be quick to just send it.
It's like the guy in the trough.
I need to throw him off.
Hobi is waiting for it.
OK he's just tossing it back there and he's getting ganyan years on the go catch garbled data.
That could be a possibility and he's somebody that e-mailing him suddenly have an on or it's just photo
OK.
So UDP is used for certain things.
OK.
But now for him imagine that having TCAP IP for the Internet you have UDP IP you may get to Google you
in the not.
OK.
So yes it is to consider the protocol.
It doesn't have more bells and whistles no sequencing or virtual circuit and you could have Gorbal data
but hey it's their DNS does use it as part of the protocol.
So no.
So here are as a comparison right.
This is the sequence UDP not sequence TZP is reliable unity.
Not really.
The CB craze virtual circuit or connection oriented UDP is actually less because it doesn't do what
for universal target.
OK.
It doesn't grab virtual surrogate.
Yes it has overhead.
OK.
If you're doing your bagging on before Iowa as you backing up your your server config or so my dad or
you know some bogus information shuttling back and forth.
OK.
TZP you have acknowledgements.
No announcements on UDP.
Our window for Logan drop.
Yeah forget about that.
UDP doesn't have none of that at all.
All right.
Here are the port numbers that we need to understand.
OK.
And we know these are well-known ports that we really need to know especially like telnet.
OK.
As MCP or I got only 23 hours into B-25 18 to be 80 to be 20 21 one listens What are signs to if he
asked for for three.
So age 22 pop on 10 A.P. 123 math version 4.
Don't get confused.
I am at Version 4 or I'm at 4 143.
OK.
Then for you that's TCD for you to be or look as an MP we're grabbing all the network information.
161.
The A.P. 69 DNS you worth as UDP which really should be on both OK.
They are all depends what it's doing 53 in the movie that's for a party.
Should be 67.
Now we need to learn if we can memorize these parts and you can learn these ports Hellgate.
This is this is is this is way great for us or vacation purposes will be great.
We're troubleshooting pursers purposes.
When you're on your firewall OK or you're creating Thurm policies you want to block certain imports
you want an offshore import.
If you use the FSA to why do you have toll and open calls it OK.
And there's one thing that you're not using code and using is close as you can OK.
So for security purposes if you're using a port closing OK close it doesn't need to be opened because
that is a door into your will that you don't want.
But anyway this is your host of host last.
These are all transport layer.
All right.
So this is what goes on that particular air is this is going to be more than.