I know that this might have that here again.
So in this lecture, I have to show you the explanation about what is the agent shopping?
And then I'm going to do a lab sugar lab, as you can see here is about six months before I started
doing those points.
Let's go to the explanation to explain what this exactly Asia is doing.
And then I will come back to the box and start doing that.
So I am looking at something that we already have seen at the beginning of this course.
So say that we have a switch here connected to this shot, that this shot that is connected to this
service streaming the video.
Now, one day multicast stream arrived to the switch.
If you don't have the IGP snooping, then what this watch would do, it was send it out of all its ports.
Why?
Because we will see in a moment why this behavior is happening.
And if you already think of it, maybe you will have to say that this is something to do with the Mac
addressing because the switch doesn't understand IP.
You understand Mac address.
While if you have the IGP shopping then you will see that the multicast would be coming to the switch.
The switch will send it only to the receivers.
That means to the host that want them off the cache which is this one.
This one.
This one is a non receiver.
He will not get it.
But over here this one is Anonymous Shiva, but he's still got it.
So let's see the mechanism.
What happens when we have the agent being enabled on the micro switch?
So if we go a little bit on the under layer and we see what's happening here, one, the streaming is
coming to the router.
The oracle will say that the destination is 239.1.2.3, which we already know.
That's the Martha Garcia group.
And remember the destination Mac address.
That's something I have expanded beginning of this course that the multicast will have addition of Mac
either starting by 01005e.
Now this will come to the switch.
Normally the switch he opened his container or the Mac address table.
And who was she?
The destination Mac address is 01005 is, of course.
And who will check to which port he has to show that?
But this Mac address is none of those Mac addresses that are on the computer.
Then here the switch will say, all right, that's I don't know what is the destination, Mac.
Others.
So what I'm going to do, I'm going to send it out of all my pulse.
But of course it doesn't send it back like this, but only to send it from all the ports, not but not
from the port that has received the Macintosh from.
So you can see the switches saying, I have no clue about the destination Mac address, so I'll send
the traffic out of all my thoughts.
So this is happening if you don't have the IGP stopping now, if we have the IGP stopping, what's going
to happen?
Remember the computer one?
He'll want the multicast, then he has to communicate to the router and it was send.
We had the membership report so we send the membership report to the rotation that I want the multicast.
So once he sent this membership report and we have IGP snooping enabled on the switch, the switch will
listen to that membership report, which is the IGP membership report.
And then it will say, okay, he will add on his my other stable that this computer he wants to multicast
and he will say it's connected to that box.
So once the multicast arrive to the switch, the switch knows that I know that this computer wanted
so he can follow on it once this computer stop his request for the month, just like closing the reality
media, for example, then this entry that the switch has put it, he will take it out.
So you can see the switch becomes smarter.
So you see that the traffic will be flowing of the multicast like this, but those two will not receive
it or do not send it out from all this support like we had in this case.
And that's something which is much better.
Why do we use the ICMP snooping?
So now we understand.
What is the IGP snooping?
Let's see, what is the love scenario?
Now my love show is as following.
I have this streaming server.
It is the router.
Everything is already configured here so their output is able to stream them onto us.
We're going to focus on this switch.
So what I'm going to do, I have to make this switch as a switch because it's actually a router microcosm.
But I will make it as a switch by putting all those ports into that 1 to 3 inside the bridge interface.
And then we are going to make the multicast on two computers.
We'll see that if they will be able to get the multicast video from this streaming server and then I'm
going to stop the multicast request from this computer, that means I will just close to ABC.
You will see if we don't have an option that the multicast traffic will keep flowing on to that interface.
Of course it's relevant to this one because this one I want them to guess, but this one doesn't want
it.
It will keep flowing.
So what I'm going to do then I have to enable the IGP stopping and then make multicast again here so
the traffic will be flowing.
And then I have to stop the request for the multicast as she directly.
Then because we have IP snooping enabled then.
It will not anymore flow the traffic of the markaz to this computer, but it will keep sending it to
that computer.
So that is what we are going to do in this lab.
Let's go now back to the Porsche stock going down.
What number one or switch one?
Put it in at one, two or three, an average.
So again, the configuration on the rotor is already done for the Marcos.
You already know how to do that.
So I'm not going to do it anymore.
I'm going to focus working on the switch now.
So let's go to the switch and we have to make it a switch because that's a problem now.
So all you need to do is just create a bridge interface and this bridge interface.
I'm going to put it in that one.
I'm going to put it in a two.
It may get disconnected because I'm connected to it or not to now.
Here we go.
We connect again.
No problem.
And I'm going to put inside this great Ethan story, which is connected to the second computer.
So now we have this, which, of course, should be careful.
Remember to have the horror of law check, because on the back of the frame, they would go to the switch
chip, which is inside the microchip router without going through the chip.
Used to be able to send the frames from one to another.
All right.
Very good.
So now did this already done?
Well, number one is not block number to enable a streaming on the server and it everywhere as she client
on PC.
You want to be sure to just to see if it's going to work so I'm going to start device is streaming on
the server.
So this has started I will go to my computer which is this one now.
So I will go to PC one and I will open.
The streaming.
And request it from me that you want.
So it is working now.
I would go to the other computer, which you don't see it, but I will show you now that there would
be traffic happening.
So even though that you don't see it.
But that's fine.
I'll show it to you in a moment.
So that is the second computer beside you.
So I would put the link of UDP.
And it is working.
So now the Velshi is working on both computers.
And if you want, we can go to the switch to the interfaces.
And here we go.
You can see these are the graphics, these are multicast traffic on Internet2.
You can see we are checking now the the ABCs.
So this is the three X is increasing that is to PC one and that is to push it to the x is increasing.
So now it's working without any problem.
Let's see what we have to do now.
What number two is not working obviously close.
We are C player on PC two is ethernet switch to passing traffic.
So my PC two, I will close now.
VELSHI So I just closed it.
Let's go to the roster.
Let's go to the interfaces.
Look, I closed it but still the the multicast especially on international you can see so if we can
go to UTX so you can see it's still sun y because we do not have AGM be snooping enabled.
And that's something I can show to you here on the bridge.
Look, I shall be snooping is not checked, so it's not enabled.
So now we have to see how to solve this problem.
Point number three is not path number four.
Enable agent be snooping on the bridge globally.
So let's go to the bridge now on the switch and we have to enable Asia AMP is looking we enable it globally
on the bridge interface and then I will say here.
Okay.
Very good.
So that's what we need to do.
Bulk number four is not block number five open.
If you are showing this, you two then close it of the is the multicast traffic still flight itinerary?
Let's check what we have now on the interface.
You can see that internationally it now is not making any multicast traffic.
I will enable multicast on PC two and we should see.
Here we go.
The multicast has started flowing and I can see it in front of me is working also on my computer, which
is why you can see that multicast is still working.
So the streaming is still working.
So now what I need to do, I have to close reality on the computer.
So I have the IGP still being enabled.
So once I close VELSHI Here, let's have a look what's going to happen.
You can see directly, it has dropped down to 24 grams for a second here.
The multicast is still working because it's going to my computer PC one but mission two is not the making
anymore or requesting for a month across traffic.
So that means the traffic of the month cars will not go out from the interface.
Ethan That's free to the computer.
So you see how nice it is to do the Asian piece looping.
And it's only one comment you can see.
Just go inside of it and then you can go to here and an enabler of course, when you enable that, you
have here some information that you can play with.
So I highly advise that you don't change anything over here, don't play with that.
But if you are an expert and you want to make some changes, you can do so.
And to mention something that I mean works only on the ICMP version too.
So be careful on the router when you make the multicast to work, be careful to choose Agent P version
two and not version one.
Because remember I GAAP version one does not send membership report, which is what the switch is based
on to be able to know where he has to send the traffic one that is a communication between the computers
and the router.
Port number five is Don.
And then the last point of this lab and for the whole course is that you go to the switch and check
the two following comments and let's check for Interface Bridge and the P print.
So that's something also you can see it over here.
So over here you can see the is the MVP.
So you can see that for example the the group multicast to Schneider wanted to the three is on the interface
Ethernet a tool which is to the computer and that's something you can see it over here.
You can also make it on the command.
So the command wizard is to be interface bridge, handprint interface bridge and the p print
have the the actually print.
So here that is the same result that we have seen.
And also there is another one which is I like it interface Bridgeport Monitor with an interface, bridge
or monitor.
And when you open the bracket and you say, so what this will show you, it will say that this switch
is connected to a multicast rather on the interface.
You see Ethernet one show on ether, not one this which is connected to multicast, but on Ethernet
too.
And Ethan Asri is not connected to a multicast rather.
So that's something also you can check it what number six is done.
And with this point, I have finished the whole course.
I hope that that the course was easy for you and you could understand how it you to run multicast on
like.
Yes it's not very difficult if you only understand the concept configuration or making it for multicast
is straightforward is not very difficult.
Like in a Cisco, they have plenty of more things you can do and you have to do everything on common
line or I think that just gave us what is essential to be able to run multicast and it's working perfectly.
So if you like my way of teaching, please do not forget to let all people know about my work that I
do.
I would appreciate to be able to let other people join my courses.
I will leave for you my contact details so I will leave for you my email address.
I will leave you for you, my WhatsApp number and of course my website which is my network training
dot com.
When I watched all the courses that I have also for you all my social contact details, my Facebook,
my YouTube channel that I highly advise you to join me because I host always a lot of videos over there
and my Twitter as well.
So yeah, I thank you very much for the time that you have spent with me in this course.
I appreciate that you have bought this course to be able to understand multicast.
Thank you very much for the time that you have spent with me and I hope to see you in some other courses.
Thank you and bye bye.