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Virtual networks have become a standard tool for remote access and collaboration between individuals working remotely. In addition, it provides secure access to corporate networks and data centers.
Virtual networking is a way to connect two or more computers to share resources. This can be done by using the Internet, which allows you to use your computer as if it were connected directly to another computer on the network. You can also set up a local area network (LAN) that connects multiple computers and devices within a small geographic area.
The most common type of virtual networking is a virtual private network (VPN), where users can connect through an encrypted connection. A VPN creates a secure tunnel between two or more computers, so they appear to be part of one large network.
The term “virtual” refers to the fact that the network appears to be real but isn’t actually connected to anything else, and it’s just a collection of computers that look like they’re all connected.
There are many reasons why you might choose to use virtual networking instead of a traditional network. Here are three:
In addition to saving money, virtual networks are much simpler to set up than physical networks. Setting up a virtual network is usually faster than installing a physical network.
Network hardware defines the three most common types of virtual networks
VPNs use the internet as a transport of connecting two networks or connecting remotely connected devices to central networks. A VPN creates a secure, encrypted tunnel that ensures privacy by obscuring traffic between two endpoints. A VPN hides all network traffic so that everything appears to be happening locally, even though it is actually happening remotely.
VLANs enable the segmentation of devices within a network, which delivers better security and management by separating traffic into different segments. VLANs tag networking traffic at layer two, encapsulating the packets into their own unique container for transmission across the LAN. Up to 4, 000 VLANs can be supported by a network.
A VXLAN creates a similar type of virtual network as VLANs, but goes one step further by encapsulating the MAC addresses within UDP packets.
A VXLAN is an extension of a VLAN that allows for creating virtual endpoints inside switches or other Layer 3 network devices. A VXLAN allows for a Layer 2 network to exist within a Layer 3 network. VXLANs offer greater scalability than VLANs and allow for up to 16 million VLAN segments per network.
All three examples of standardized network virtualization are deployed on top of network infrastructures, such as routers, switches, and cables.
However, another type of network virtualization is more proprietary and occurs deep within a hypervisor hosting VMs. A hypervisor creates its own virtual networks, either an internal virtual networking system that allows communication only within the hypervisor or an externally accessible virtual networking system that allows communications outside the hypervisor.
Using a virtual network has several benefits. Here are just a few:
One major drawback of using a virtual network instead of a real one is that you lose the ability to use certain types of hardware. For instance, if you want to run a server on your network, you won’t be able to use a standard Ethernet cable, and you’ll need to purchase special cables that support VLANs.
Another disadvantage is that you can only access the network through a web browser, which means you can’t control the network from a mobile phone or tablet.
However, there are ways around these limitations. You could buy a wireless adapter that supports VLANs. Or you could use a VPN service to allow you to access the network from anywhere.
In conclusion, setting up a virtual network is an effective way to save money while still providing high-speed connectivity, and it’s beneficial for companies with limited budgets.
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