Recently cloud service and M2M or IoT service will become popular for different applications. So two different optical network architectures are proposed for creating future energy efficient network services. The first architecture is a centralized approach for higher energy efficiency; it uses a data center-centric optical aggregation network based on wavelength / time-slot multiplexing. All layer-3 or upper traffic are transferred through the simple metro / access optical aggregation network and switched in centralized scalable giant router at the data center. Total power consumption of the network can be reduced hundred fold compared to the existing Internet. The second is service mash-up by linked data through a network that uses broadband optical wire for the IoT era. All service contents, hardware, and also software programs are defined as service parts. Huge bandwidth optical wire interconnects some service parts and creates new mash-up services in the network. That creates deep network functionality in combination with network and processing functions. Network services are always moving like pendulum, so both two technologies can be applied future network service.