IP (Internet Protocol) message fragmenting and recombining method and device

Abstract

The invention provides an IP(Internet Protocol) message fragmenting and recombining method and device. The device comprises a receiving processing module, a format adjusting module, a fragmenting processing module and a recombining processing module; the input end of a fragment recombining device receives the data message information of an MAC (Media Access Control) layer; the receiving processing module transmits the received data message information to the format adjusting module; the format adjusting module adjusts the data message information into network data messages and transmits the network data messagesto the fragmenting processing module; the fragmenting processing module carries out fragmenting processing to the network data messages; the recombining processing module reads adata packet after the fragmenting processing module carries out the fragmenting processing; and finally the recombining processing module recombines the data packet into data message information and sends the data message information to the MAC layer. According to the fragmenting and recombining method provided by the invention, through adoption of the one-to-one correspondence feature of the RAM (Random-Access Memory) address information and the data information, the header information of the transmitted data message information is reduced; the transmission data load is relieved; and the fragmenting and recombining efficiencies are improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a fragmentation and reassembly method and device for an IP (Internet Protocol, Internet Protocol) message. Background technique [0002] The general OSI (OpenSystem Interconnection, Open System Interconnection) seven-layer network protocol model is divided into seven layers, and each layer can have several sub-layers. The seven layers of OSI are the application layer, presentation layer, session layer, and transport layer from top to bottom. , network layer, data link layer and physical layer, in which the application layer, presentation layer, session layer and transport layer define the functions of the application program, while the network layer, data link layer and physical layer are mainly for end-to-end communication through the network end data flow. Among them, the application layer mainly corresponds to the communication service of the application program...

AI Technical Summary

Problems solved by technology

In this way, in a network environment with a particularly large bandwidth, most of the transmitted header information is repeated, while the useful payload only accounts for a small part, which will inevitably reduce the transmission efficiency.

Images