CBOSS: bringing traffic engineering inside data center networks

Today’s traditional, hierarchical, fullelectronic data centers cannot guarantee quality of service (QoS) for latency-sensitive applications or carrier-grade multitenancy.We propose cloud burst optical-slot switching (CBOSS), an intra-data center network architecture leveraging the original optical components and custom software- defined network (SDN) control to enable traffic engineering. In particular, we demonstrate network slicing on demand with subwavelength granularity and deterministic per-flowQoSguarantees in a 3-top-of-rack(ToR)CBOSSnetwork prototype. We rely on an integrated silicon photonics (SiP) wavelength dropper, a fast-tunable laser, and custom SDN-based controller.