Abstract
Software defined networking and OpenFlow, which allow operators to control
the network using software running on a network operating system within an
external controller, provide the maximum flexibility for the operator to control
a network, and match the carrier's preferences given its centralized architecture,
simplicity, and manageability. In this paper, we report a field trial of an
OpenFlow-based unified control plane (UCP) for multilayer multigranularity
optical switching networks, verifying its overall feasibility and efficiency,
and quantitatively evaluating the latencies for end-to-end path creation and
restoration. To the best of our knowledge, the field trial of an OpenFlow-based
UCP for optical networks is a world first.
© 2012 IEEE
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