2 hours 58 minutes
You're watching module for this year. Networking and storage
lesson one virtual standards, which is
by the end of this video, you'll have a good understanding of how fertile machines communicate between each other and with the physical world.
You will also learn some important Veum where networking terminology.
But just before we begin, I wanted you to know that virtual networking is a bit off his struggle to understand at first,
so you might get overwhelmed. If you're not familiar with basic networking concepts.
And even if you are familiar with computer networking, it can still be a struggle. So have patience. A while
now, let's get started.
Virtual machines are going to run some service is that either need to be accessible from outside or from inside your *** I.
And just like humans, virtual machines can't live without networking,
so let's consider the following example.
We've got three virtual missions, and we want them to communicate with each other at Layer two. In other words, we want them to be in the same broadcast domain.
If these were physical machines, you'd pluck them, tow a player to switch,
and they will be able to communicate because by default, all the ports on the switch are on the same broadcast. Dumbing
in contrast to a physical switch. Yes, Excise, Going to provide a virtual switch
and, just like a physical switch of virtual switch will have all its sports in the same broadcast. Oh, pain by default.
Now this default. Virgil's with that lives inside. Yes, excise called V Switch zero.
And it has ports to which viens are plugged the ports on movies, which are called port groups.
A port group is a group off their two ports. It is always identified by a name. Now the default part group is called V and Network, and it has eight ports.
All Virgin machines are connected to this sport group by default
if no other part group is specified during creation or cloning,
just like ports on the physical switch. All ports in a port group are on the same broadcast dumbing.
But unlike a physical switch of virtue, ALS, which is elastic,
which means that support group can expand the number off its sports to accommodate as many virtual machines as Theis X, I host can handle
and finally, unlike ports on the physical switch you cannot interact with individual ports in a port group.
You can only interact with the port group as a whole,
at least in the case off the standards, which Orpheus s
now just like a physical switch lets you configure ports with Phelan's toe. Isolate layer to traffic.
A virtual switch lets you create other port groups. Toe isolate traffic between virtual missions. You can create other port groups and assign villains so that each part group represents a villain.
So for two machines connected to the same port group can communicate with each other at player to without the need for the traffic to leave the SX I house.
But virtual machines connected to different board groups cannot communicate with each other at layer to without having the traffic leave the SX I host toe a physical router. Then it returns back to the virtual switch.
But for the traffic to leave the V's, which we need to connect to the V, switch to one or more off the physical next on the server.
If we connect to the Web and database viens, for example, to the same port group, they will be able to communicate
now if we connect the email Virtual machine toe, another port group named Test, for example, which is only different. Villain.
Neither the Web nor the database via mes can communicate with the email virtual machines internally, so traffic would have to travel outside. Yes, exile
then returns back to the switch. Zero.
I hope you see what's going on here.
The virtual switch needs connections to physical ports, toe carry traffic to and from the virtual machines and also to and from the U. S. X I host.
No, that you think of it.
How do you access nears? Excite host from outside?
Well, using the host client right,
you open up a browser and type in the management I p address off the years Excite host.
But wait a minute.
Where does theme management I p Interest live? Where is it actually configured?
Well, let's talk about that
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