What are the benefits of virtual networking?

stylor

VMWare is using technology from one of it's recent acquisitions to add virtual networking into its existing products. I don't really have any experience with virtual networks - What are the expected benefits of deploying a virtual network?

Topic: Networking
Answer this Question

Answers

3 total
jimlynch
Vote Up (12)

Here's an article that gives you a good general overview of virtual networking.

http://en.wikipedia.org/wiki/Virtual_network

"A virtual network is a computer network that consists, at least in part, of virtual network links.

A virtual network link is a link that does not consist of a physical (wired or wireless) connection between two computing devices but is implemented using methods of network virtualization.
The two most common forms of network virtualization are protocol-based virtual networks, (such as VLANs, VPNs, and VPLSs) and virtual networks that are based on virtual devices (such as the networks connecting virtual machines inside a hypervisor). In practice, both forms can be used in conjunction.

Virtual LANs (VLANs) are logical local area network s (LANs) based on physical LANs. A VLAN can be created by partitioning a physical LAN into multiple logical LANs using a VLAN ID. Alternatively, several physical LAN's can function as a single logical LAN. The partitioned network can be on a single router, or multiple VLAN's can be on multiple routers just as multiple physical LAN's would be. A VLAN can be on a VPN.

A virtual private network (VPN) consists of multiple remote end-points (typically routers, VPN gateways of software clients) joined by some sort of tunnel over another network, usually a third party network. Two such end points constitute a 'Point to Point Virtual Private Network' (or a PTP VPN). Connecting more than two end points by putting in place a mesh of tunnels creates a 'Multipoint VPN'.

A VPLS (Virtual Private LAN Service) is a specific type of Multipoint VPN. VPLS are divided into Transparent LAN Services (TLS) and Ethernet Virtual Connection Services. A TLS sends what it receives, so it provides geographic separation, but not VLAN subnetting. An EVCS adds a VLAN ID, so it provides geographic separation and VLAN subnetting."

blackdog
Vote Up (10)

The greatest benefits are probably the rapid provisioning and speed with which you can deploy whatever you want. Here is an article that goes into a bit more depth about what a virtual network actually is

Ander Porpoc
Vote Up (5)

Hi stylor,

 

Accroding to me Virual networking provides enhanced network securityMore over VLANs is cheaper than creating a router network and the most important of all Physical Layer transperancy. 

Ask a question

Join Now or Sign In to ask a question.
Google reported a 19 percent increase in revenue for the first quarter, but results from its advertising business were mixed.
Many U.S. residents who have written the FCC to voice concerns about the move from copper-based telephone networks to Internet Protocol are concerned about the potential effects on health from mobile-headset radiation and what happens when the electricity goes out.
A new webmail service called Lavaboom promises to provide easy-to-use email encryption without ever learning its users' private encryption keys or message contents.
Oracle has issued a comprehensive list of its software that may or may not be affected by the OpenSSL (secure sockets layer) vulnerability known as Heartbleed, while warning that no fixes are yet available for some likely affected products.
Google's one-day sale of Google Glass seems to have been a success with all units sold out, a blog post by the search giant suggests.
Bitcoin exchange Mt. Gox has abandoned its bid for revival and filed for liquidation with a Japanese court, The Wall Street Journal reported Wednesday.
Wireless carriers in the U.S., handset makers and the industry's lobbying group have made a significant concession on technology that could remotely disable stolen smartphones and tablets.
In an indication that CEO Marissa Mayer is not yet seeing dramatic results from her efforts to turn the company around, Yahoo's sales dipped slightly in its first quarter, amid some gains in its search advertising business.
Aiming to play a bigger role in analyzing tweets and sharing the resulting insights with advertisers and other businesses, Twitter has acquired Gnip, its partner for the past few years.
randomness