Network virtualization

Network Virtualization

In network computing, the term network virtualization generally means to combine network resources (hardware and software) and network functionality into a single, software-based administrative entity, a virtual network. Network virtualization involves [Virtualization|platform virtualization, often combined with [Virtualization|resource virtualization].

Network virtualization is categorized as either external, combining many networks, or parts of networks, into a virtual unit, or internal, providing network-like functionality to the software containers on a single system. Whether virtualization is internal or external depends on the implementation provided by vendors who support the technology.

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Components of a Virtual Network

Various equipment and software vendors offer network virtualization by combining any of the following:

• Network hardware, such as switches and [Network adapter]s, also known as network interface cards (NICs).
• Network [Category:Virtualization_software], such as Virtual LANs ([VLAN]s) and containers such as [Virtual_machines] and [Solaris_Containers].

External Network Virtualization

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External Network Virtualization: Examples

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Internal Network Virtualization

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Combined Internal and External Network Virtualization

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Stefaniab 21:26, 5 October 2007 (UTC)