emerging ultra-high bit rate services (e.g., IEEE 100GBASE-R, 40GBASE-R).Leveraging optical control plane advances, dynamically configurable OTN and IP-over-OTN solutions deliver on the promise of rapid provisioning, increased automation, and richer sets of service functionality. The control plane enabled OTN opens the door to new services, similar to how signaling system 7 (SS7) opened up the possibilities for advanced intelligent networking (AIN) for the public switched telephony network (PSTN). IP-over-OTN solutions not only provide a dynamically configurable optical layer responsive to IP networking demands, but enable multi-layer optimization with superior service resiliency. This paper examines OTN standardization advances and how OTN-based networking helps service providers
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