Generalized DCell structure for load-balanced data center networks

摘要

DCell [3] has been proposed as a server centric\udnetwork structure for data centers. DCell can support millions of\udservers with high network capacity and provide good fault tolerance\udby only using commodity mini-switches. However, the traffic\udin DCell is imbalanced in that links at different layers carry very\uddifferent number of flows. In this paper, we present a generalized\udDCell framework so that structures with different connecting rules\udcan be constructed.We show that these structures still preserve the\uddesirable properties of the original DCell structure. Furthermore,\udwe show that the new structures are more symmetric and provide\udmuch better load-balancing when using shortest-path routing. We\uddemonstrate the load-balancing property of the new structures by\udextensive simulations.