Title：Extensible reconfigurable switch packet parser basic processing unit structure

Country：China

Patent No.：201911126256.6

Legal Status：Authorized

Inventor：Xiangyu Li

Assignee：Tsinghua University

Address：Tsinghua University,Haidian District Beijing 100084, China

Filing Date：2019-11-18

Issue Date：2020-11-27

The invention relates to an extensible reconfigurable switch packet parser basic processing unit structure. The extensible reconfigurable switch packet parser basic processing unit structure comprisesa PE _ config, a Cell unit, a PE _ bypass unit, an Offset unit, a frame data path and an IRF data path. The PE _ config is a basic processing unit configuration unit; wherein the Cell unit is used for analyzing a protocol message; wherein the frame data path is used for providing data for the Cell unit; wherein the IRF data path is used for temporarily storing a result generated in an analysis process and temporary intermediate data needing cross-layer transmission; wherein the PE _ config unit is used for completing configuration of table item contents of lookup tables of a PB and a PC in the Cell unit; the PE _ bypass unit is mainly used for realizing the processing of a cross-layer protocol; and the Offset unit is used for realizing the offset work of the initial data access position of the frame data path of each layer of basic processing unit. The method has very high flexibility, supports the analysis of the user-defined network protocol, and well supports the SDN.

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