Software Defined Networks (SDN)

Much of the initial interest in SDN has been driven by virtualisation of systems within the data centre, where SDN has already proved its value. But if SDN can be extended across the wide area, it will transform the network into a single, unified computing platform - virtualising layers 0-7 - optimised to provide cloud services.


Intune can uniquely extend SDN across a metro network by abstracting it into a 'giant' local area switch. Intune’s distributed switch architecture transforms multiple switching and transport elements into a single 'local' switch, with ports hundreds of miles apart.


The entire network can then be controlled, via an open control protocol interface, as a single switching element. Or, for SDN's implemented with virtual switches at the network edge, it can provide them with a full-mesh of non-blocking connectivity  - just as they expect from local switches in the data centre.


This breakthrough architecture enables the practical extension of SDNs across a carrier's network for the first time.


The executive overview document (below)  outlines the benefits of Intune's architecture in SDN networks.


The extended paper (below) examines the implications and options for delivering SDNs across a carrier's network.


The technical paper (below) considers ways to implement SDN accross a carrier's network.


The paper (below) on Network Function Virtualisation discusses the requirements of the underlying network to realise the efficiencies of virtualising network functions.