4.1 Virtual Standard Switches Part 1

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Hi,

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You're watching module for this year. Networking and storage

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lesson one virtual standards, which is

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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.

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You will also learn some important Veum where networking terminology.

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But just before we begin, I wanted you to know that virtual networking is a bit off his struggle to understand at first,

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so you might get overwhelmed. If you're not familiar with basic networking concepts.

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And even if you are familiar with computer networking, it can still be a struggle. So have patience. A while

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now, let's get started.

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Virtual machines are going to run some service is that either need to be accessible from outside or from inside your *** I.

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And just like humans, virtual machines can't live without networking,

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so let's consider the following example.

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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.

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If these were physical machines, you'd pluck them, tow a player to switch,

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and they will be able to communicate because by default, all the ports on the switch are on the same broadcast. Dumbing

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no,

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in contrast to a physical switch. Yes, Excise, Going to provide a virtual switch

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and, just like a physical switch of virtual switch will have all its sports in the same broadcast. Oh, pain by default.

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Now this default. Virgil's with that lives inside. Yes, excise called V Switch zero.

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And it has ports to which viens are plugged the ports on movies, which are called port groups.

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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.

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All Virgin machines are connected to this sport group by default

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if no other part group is specified during creation or cloning,

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just like ports on the physical switch. All ports in a port group are on the same broadcast dumbing.

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But unlike a physical switch of virtue, ALS, which is elastic,

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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

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and finally, unlike ports on the physical switch you cannot interact with individual ports in a port group.

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You can only interact with the port group as a whole,

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at least in the case off the standards, which Orpheus s

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now just like a physical switch lets you configure ports with Phelan's toe. Isolate layer to traffic.

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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.

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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.

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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.

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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.

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If we connect to the Web and database viens, for example, to the same port group, they will be able to communicate

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now if we connect the email Virtual machine toe, another port group named Test, for example, which is only different. Villain.

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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

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gets routed,

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then returns back to the switch. Zero.

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I hope you see what's going on here.

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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.

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No, that you think of it.

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How do you access nears? Excite host from outside?

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Well, using the host client right,

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you open up a browser and type in the management I p address off the years Excite host.

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But wait a minute.

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Where does theme management I p Interest live? Where is it actually configured?