  The N-GREEN project has for goal to design a low cost optical ring technology
with good performances (throughput, latency...) without using expensive
end-to-end connections. We study the compatibility of such a technology with
the development of the Cloud RAN, a latency critical application which is a
major aspect of 5G deployment. We show that deterministically managing Cloud
RAN traffic minimizes its latency while also improving the latency of the other
traffics.
