Software-defined networks

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Trains, planes and software-defined multilayer networks

Imagine you are in charge of your country’s public transportation. You have three divisions, busses, trains, and aeroplanes. Each division shares patterns of passenger traffic with each other, but otherwise operate independently. The population is generally satisfied with the level of service, even when switching between modes of transport, but you know that this is primarily due to the fact that your budgets have been generous enough to allow each division to build sufficient route capacity and frequency.

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Self-service bandwidth

No self-respecting optical equipment vendor can afford to be without a well-considered strategy for software defined networking (SDN). Over the last 18 months or so, most of the major and second-tier vendors have announced how they intend to approach software control of the optical layer in carrier transport networks – which we will call transport SDN to distinguish it from the more well-developed application of SDN in data centre network environments.

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Oleg Khaykin, CEO of Viavi Solutions, speaks candidly to Fibre Systems about how to compete in the challenging world of communications test and measurement

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Hao Dong describes how innovative optical fibres and cabling could provide substantial benefits for connecting data centres across a wide range of distances

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Richard Ednay considers whether fibre characterisation needs to be modified to suit modern optical communication systems that are likely to include coherent transmission

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ECOC is the place to be to discover the latest technological and commercial innovations in optical components and networks. Here we highlight some of the exhibitors and events taking place in the exhibition hall.