Building Hierarchical Switch Network Using OpenFlow

摘要: No single layers and technologies can construct a large scale network, thus networks are organized as physical structure of variety layers. For example in data center, typically consists access aggregation L2 switches core L2/L3 networks. However, new trends for server virtualization change traffic dynamics, i.e. virtualized host be located at any locations the network connections among servers set up independently from structure. Therefore static cannot stay optimal thus, we propose architecture whose is logically defined flexibly reconfigurable. The uniformly OpenFlow constructs logical routing hierarchy by software controller. We evaluated our scheme to an efficient center network. discussed types structures path selection algorithms with constraint flow table usage, which one most critical constraints scalable Our simulation evaluation indicates that (1) full-mesh, hypercube ring-based realistic design (2) hyperbolic has doubled capacity.