One of the key tenets of SDN followed by the Open Networking Foundation is the abstraction of network behavior. This has enabled the separation of forwarding and control and led to faster innovation in both the forwarding plane and the control plane. In our work on optical transport, we have demonstrated common control for packet and optical switching, as well as application access to network topology and control. In this talk, we will describe ONF's SDN architectural view of the network in general and optical transport in particular and explain the extensions to OpenFlow that instantiate SDN for optical transport along with the requirements they satisfy.
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