The document describes a massively parallel and flexible optical network enabled by gRPC that allows 1Pbps transmission. It uses Space Division Multiplexing (SDM) over multi-core fiber to transmit over 400 optical channels in parallel. A Dynamic MAC allows handling skews caused by different wavelengths, fibers, and routes. The Dynamic MAC and gRPC enable flexible traffic routing and link bandwidth control. A demonstration shows a controller using gRPC to dynamically control link settings and routes based on traffic volume in real-time.