FEATURE SOFTWARE-DEFINED NETWORKING
Self-service bandwidth
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Software control has finally reached the optical layer. Pauline Rigby talks to Infinera about its involvement in the first commercial deployment of a software- defined optical network
N 24 FIBRE SYSTEMS Issue 7 • Spring 2015
o self-respecting optical equipment vendor can afford to be without a well-considered strategy for soſtware 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 soſtware 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. Talking about transport SDN is one thing;
however, deploying it in the real world is quite another. Last year, market research firm
Infonetics found that while more than three-quarters of service providers surveyed said they plan to deploy transport SDN at some point, only one third said the equipment vendors’ SDN strategies will play a critical role in their selection of equipment and suppliers in the present day. While most carriers are still metaphorically
kicking the tyres of SDN by engaging in research experiments and field trials, a pioneer has emerged. Asia-Pacific wholesale service provider Pacnet has launched what it says is the first large-scale commercial service to be based on transport SDN principles and it is enabled by the Open Transport Switch (OTS) soſtware
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