The multiple number of mobile fronthaul solutions were implemented to meet the requirement of the emerging disaggregated radio access network for 5G and beyond. The intention of this Proof of Concept (PoC) is to demonstrate fixed WDM fronthaul solutions that currently work in SK Telecom’s 5G network and to verify their performance in terms of maximum cell throughput, transport latency, and power consumption. One aspect of this PoC is the benchmark that the power consumption of All-photonics fronthaul system is less than that of semi-active fronthaul system. We want to figure out how much the difference of power consumptions is. This PoC report describes the architecture of fixed WDM network, as an example of the future mobile fronthaul solutions for beyond 5G or 6G. The measurement methods and results interworking with Nokia 5G system are also explained.