A City Traffic Model for Optical Circuit Switching in Data Centers

摘要

Circuit emulation in optical domains can be implemented by scheduling sessions on lightpaths. This is traditionally an NP-hard problem similar to OSPF: optimize the lightpath assignment to map n sessions onto m paths in discrete time. This paper proposes a distributed method based on the City Traffic model - a model that takes after roads (car) traffic in cities. The key point is sensing where each session is started proactively in a completely distributed fashion.