Virtual Switch and its impact?

A communication channel for virtual machines with each other is defined via virtual switch, so virtual switch can be defined as a program that enables virtual machines communicate. it actually bind the physical machine network adapter with virtual host.

How to create a virtual Switch?

Creating a virtual switch is very easy procedure. first of all we will be opening Hyper-V Manager. In right pane you can see that there is an option about VIRTUAL SWITCH MANAGER

Clicking on Virtual Switch Manager, will open virtual switch Manager Window for your machine

There are three types of switches in virtual environment. External, Internal & Private. These switches are basically the virtual networks that can be established. There is an other type that can be created via WMI but officially it has no name. but I would say it as dedicated virtual switch.

Let us walk through each type of switch and get a clear concept on when to use which virtual switch.

External Virtual Switch:

when it is required to form a communication in such a way we use an external virtual switch

• Virtual Machine to a Virtual Machine on a single physical Server
• Virtual Machine to Parent Partition whereas parent partition can be defined as the logical hard-drive partition that is responsible to run hyper V layer in the system, so that creation of child partitions can be managed.
• Virtual Machine to external located servers, in external switch the internet access is given to the virtual machines and environment.

Internal Virtual Switch

When communication is required in such a way within the network we can use internal switch for this

Virtual Machine to Virtual Machine on same physical machine

virtual machine to parent partition

Internal switch works in a way that it allows the data communication and no internet access by default.

Private Virtual Switch

Private switch makes the machine isolate itself. it is used to establish a network in nested virtual machines.

Lets Create a Switch, to create one switch for instance external switch, to Create one click create virtual switch.

Once you click, it will open you a window as shown below

In the name field, name the switch as you want for your remembering. Notes is used to add any description if one want to add. Connection type. to create external choose external network, the drop down below specify a list of adapters of your physical machine. select the adapter from which you are connected to the internet. Once chosen Click Okay.

Congrats you have successfully created external switch.

For Internal Switch, there is only data communication hence no internet is provided to the virtual environment hence we will just click Create Virtual Switch and choose internal switch in connection type and click okay

For Private Switch you will choose private switch instead of Internal switch rest is same as that of Internal Switch

private is also used only for data communication.

Continue to article Creating a Virtual Machine in Hyper-V

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