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OPENFLOW/SDN FOR OPTICAL NETWORKS
© 2010 Taylor & Francis Group, LLC
is that all the operations between an OFA and the GMPLS control
plane (e.g., ERO delivery) are all carried out inside the same control-
ler (i.e., OF-GC), which is helpful for reducing the overall processing
latency, at the expense of a higher processing load within an OF-GC
because both the GMPLS protocol suite and the OpenFlow module
are implemented in a single controller.
Experimental Setup, Results, and Discussion To verify the feasibility and
efficiency of the proposed solutions, we constructed a transparent opti-
cal network testbed with four PXC in a mesh topology, as shown in
Figure 14.30a. Two OTU2-based (10.7-Gbps) TPNDs were attached
to PXC1 and PXC2, and two OF