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Software-definednetworking

Software-defined networking (SDN) is anapproach to computer networking that allows network administrators is managenetwork services through abstraction of lower-level functionality. SDN is meantto address the fact that the static architecture of traditional networks doesn’tsupport the dynamic, scalable computing and storage needs of more moderncomputing environments such as data centers. This is done by decoupling ordisassociating the system that makes decisions about where traffic is sent fromthe underlying systems that forward traffic to the selected destination.

Concept

Software-defined networking (SDN) is an architecturepurporting to be dynamic, manageable, cost-effective, and adaptable, seeking tobe suitable for the high-bandwidth, dynamic nature of today’s applications. SDNarchitectures decouple network control and forwarding functions, enablingnetwork control to become directly programmable and the underlying infrastructureto be abstracted from applications and network services.