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Virtual networking in Linux

Nov 06, 2010, 15:07 (0 Talkback[s])
(Other stories by M. Tim Jones)

"Summary: With the explosive growth of platform virtualization, it's not surprising that other parts of the enterprise ecosystem are being virtualized, as well. One of the more recent areas is virtual networking. Early implementations of platform virtualization created virtual NICs, but today, larger portions of the network are being virtualized, such as switches that support communication among VMs on a server or distributed among servers. Explore the ideas behind virtual networking, with a focus on NIC and switch virtualization.

"Computing today is undergoing something of a revival. Although virtualization was created decades ago, its true potential is now being realized through the use of commodity hardware. Virtualization consolidates server workloads for efficiency, but other elements of the server ecosystem are emerging as candidates for further consolidation. Many view virtualization as a consolidation of CPU, memory, and storage, but this oversimplifies the solution. The network is a key aspect of virtualization and represents a first-class element of the virtualization set.

"Virtualizing networks

"Let's begin with a high-level exploration of the problem, and then dig down into the various ways that Linux® builds and supports network virtualization."

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