TCP packet segmentation packing method based on 5G UPF and terminal

Abstract

The invention discloses a TCP packet segmentation packing method based on a 5G UPF and a terminal, and the method comprises the steps that: the UPF receives PDU session information issued by an SMF network element through an N4 interface, and determines whether a user has the authority to access a network or not according to the PDU session information; the UPF closes a segmentation packing function of a TCP protocol stack or closes a segmentation combination function of a DPDK; the UPF receives a data packet of a user, if the data packet belongs to TCP data and is segmented, data, needing data content detection, of the user is inquired, and the data is cached in the UPF and is temporarily not processed; the UPF performs data content detection after all the segments are collected, forwards the data content when the data content is detected to be qualified and the content is effective, and discards the data content when the data content is detected to be unqualified; and if the current data packet of the user is legal, the subsequently received TCP segmented data is not recombined any more, and is directly judged to be legal and forwarded. And the forwarding efficiency and the time delay of the data are effectively prompted.

Description

technical field [0001] The present invention relates to the field of computer technology, and in particular to a TCP packet segment grouping method based on 5G UPF, a terminal and a computer-readable storage medium. Background technique [0002] TCP Transmission Control Protocol (TCP: Transmission Control Protocol) is a connection-oriented, reliable, byte stream-based transport layer communication protocol. [0003] MSS (MSS: Max Segment Size) is a concept in TCP. MSS is the maximum data segment that a TCP packet can transmit each time. When the length of the sent TCP segment is greater than MSS, segmental transmission is required (for example, the MSS value is 512 bytes, if a 600-byte packet is sent through TCP data, it needs to be sent in two data packets, the first data is 512 bytes, and the second data is 88 bytes). The TCP protocol usually negotiates the MSS values ​​of the two parties when establishing a connection, and each party is suitable for advertising the MSS ...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a method for segmenting TCP packets based on 5G UPF, a terminal and a computer-readable storage medium, aiming to solve the problem of TCP data packets that do not need to be detected by the TCP protocol stack in the prior art. Combination will lead to delay in data packet forwarding, resulting in low data forwarding efficiency and high delay

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