《Tab.5 Explanation of data response frame》

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《一种支持网络功能虚拟化的移动辅助软件定义传感网络（英文）》

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The flow packets transm itted in the netw ork is designed to be processed according to flow entries in the flow table.If the node cannot find corresponding entries，the request fram e of the flow table w ill be sent.The form at of the request fram e of the flow table is illustrated in Fig.7，and the form at of the response fram e of the flow table is defined in Fig.8.The explanation of the fields is show n in Tab.3.The flow packets share the sam e fields w ith m atch field in flow entry for m atching item s.The action field in the proposed netw ork supports tw o kinds of actions:forw ard and drop.The packet processing describes the procedure of how a flow packet generated by a sensor node is processed.The flow diagram of packet processing is show n in Fig.9.The data request fram es and data response fram es betw een sensor nodes and controllers can be used to collect topology inform ation and sensor data.The fram es are show n in Fig.10 and Fig.11.The explanation of the fields is show n in Tab.4 and Tab.5.