Algorithms for advanced packet classification with ternary CAMs
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
OpenFlow: enabling innovation in campus networks
ACM SIGCOMM Computer Communication Review
NOX: towards an operating system for networks
ACM SIGCOMM Computer Communication Review
Split: Optimizing Space, Power, and Throughput for TCAM-Based Classification
Proceedings of the 2011 ACM/IEEE Seventh Symposium on Architectures for Networking and Communications Systems
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OpenFlow is one of the most potential technique to enable innovation in network. To enable OpenFlow more flexibility and high-efficiency, multi-table pipeline has been introduced in OpenFlow. A HAL(Hardware Abstraction Layer) is proposed to address the incompatibility of flow table pipeline between legacy switch hardware and the controller. However, the burden of controller will be increased greatly. In this paper, an innovative middle layer called FlowAdapter is proposed. It converts flow entry rules from the controller flow table pipeline to switch hardware flow table pipeline, so that the same rules can be fitted into different types of hardware. With FlowAdapter, legacy OpenFlow hardware can be used to support multi-table pipeline rules. Located in switch, FlowAdapter is transparent to the controller. With a prototype implementation, we find that the FlowAdapter performs rules conversion effectively.