Method and device for resolving network data packet

Abstract

The invention discloses a method and a device for resolving a network data packet, and belongs to the field of network communication. The method comprises the following steps of: connecting required protocol resolving sub modules in series to form a data resolving link; 2) continuously processing the current data packet according to the set protocol type by the first protocol resolving sub module of the data resolving link, and extracting information such as protocol type of the current load and the like; and 3) continuously processing the input data by the protocol resolving sub modules, namely judging whether the input protocol type is consistent with the resolved protocol type of the current layer, if so, processing the received data packet and outputting the data packet to the next sub module, otherwise, directly outputting the received data to the next sub module. The device comprises the data resolving link which is formed by sequentially connecting a data link layer protocol resolving sub module, an MPLS (multi-protocol label switch) protocol resolving sub module, a network layer protocol resolving sub module and a transmission layer protocol resolving sub module in series. The method and the device can realize linear speed resolution, support the data packets of multiple types and realize seamless upgrade.

Description

technical field [0001] The invention relates to a novel method and device for parsing network data packets, in particular to a method and device for parsing complex data packets under large traffic. Background technique [0002] Network protocols are usually developed in different layers, and each layer is responsible for different communication functions. like figure 1 As shown, according to the OSI architecture, the data packets on the network are divided into seven layers, the physical layer, the data link layer, the network layer, the transport layer, the session layer, the presentation layer, and the application layer. According to another architecture, TCP / IP, the data packets on the network are divided into four layers, including the data link layer, the network layer, the transport layer, and the application layer. TCP / IP itself is also a set of multiple protocols at different levels. Whether it is OSI, TCP / IP, or other network models, the data packets on the netw...

AI Technical Summary

Problems solved by technology

Therefore, in the case of large-flow data packet access, it is easier to achieve line-speed parsing of data packets, but because multiple operations are performed synchronously, and all data packets will undergo the same operation, the deep analysis capability is poor and not flexible enough , there are fewer types of packets that can be parsed

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