Research On Design Technology Of Multi-Protocol Network Analyzer

In a complex network application scenario,a hybrid heterogeneous network composed of a plurality of network protocols is generally used.For such a network environment,a plurality of network protocol analysis devices are generally required to analyze network data content.In order to reduce the cost of network analysis and improve the efficiency of network analysis,designing and implementing multi-protocol network analysis equipment that can adapt to hybrid networks has important research significance and application value.This paper mainly studies the overall structure of network protocol analyzers supporting Ethernet and Fibre Channel(FC)and designing related hardware data paths to realize protocol analysis and testing of network devices.This paper first compares Ethernet and FC through FCoE(Fibre Channel Over Ethernet)network protocol to determine the feasibility of using the same data path for two network protocols.T Then the overall design scheme of the multi-protocol network analyzer and the IP core design and implementation scheme of its data path on the FPGA are proposed;Finally,the test platform is built to test the function of the network analysis module.The test results show that the solution in this paper supports the capture of Ethernet protocol and FC network protocol data frames and forwards them to the host computer and then analyzes them with commercial software;The port can support Gigabit Ethernet and 10 Gigabit Ethernet and FC networks of different speeds such as 2G/4G/8G;In test mode,the port can be directly connected to the connected device and can issue multiple types of frames;Each link is correct and effective,achieving the effect of multi-protocol network analysis.