High-speed user tracing method for LTE network based on FPGA+NPU
A user-friendly, high-speed technology, applied in the field of network security, which can solve the problems of heavy load on the analyzer, inability to manage conflict items, and inability to trace the source of user data packets, and achieve the effect of improving efficiency, fast and efficient traceability, and high accuracy.
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[0033] The present invention will be further described below in conjunction with the accompanying drawings.
[0034] Such as figure 1 As shown, a high-speed user traceability method for LTE network based on FPGA+NPU, including:
[0035] 1. The network system receives packets from the interface;
[0036] 2. Filter and classify the messages, filter and process to discard abnormal messages, super long or short messages, and non-IP messages, and at the same time divide the messages into user signaling messages and user signaling messages according to protocols and ports. There are two types of data packets, and the header stripping of VLAN and MPLS is completed at the same time;
[0037] The user signaling message includes at least Stream Control Transmission Protocol (SCTP for short), GPRS Tunneling Protocol Control (GPRS Tunneling Protocol Control, GTP-C for short) message, wherein SCTP includes application protocol and NAS protocol message text, GTP-C contains the user signa...
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