Network device and method for scalable data integrity checking

US10911180B2 · kind B2 · utility

Assignee

• TTTech Computertechnik Aktiengesellschaft · AT

Inventors

• Georg Gaderer · Wien, AT
• Günther Bauer · Wien, AT

Key dates

• Filing date: Apr 18, 2019
• Grant date: Feb 2, 2021
• Expiry date: Apr 25, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L49/352
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method for data integrity check in a network device of a computer network. The network device includes a communication module and a monitoring module. The monitoring module receives (a) the same data being received by a communication module from an input port of the network device, and (b) the same data the communication module transmits towards output port/s of the network device. The monitoring module (i) derives, after receiving the same R-data as the communication module, a sub-tuple of the R-data, a “R-data sub-tuple”, wherein the R-data sub-tuple includes m of the n data elements of the n-tuple of R-data, wherein m>0 and m<n, (ii) stores, after deriving the R-data sub-tuple, only the R-data sub-tuple, (iii) derives, after receiving the T-data corresponding to the R-data, a sub-tuple of the T-data, a “T-data sub-tuple”, and (iv) compares the stored R-data sub-tuple with the T-data sub-tuple, and (v) executes at least one specified/specifiable action, if the comparison determines the R-data sub-tuple and T-data sub-tuple are not identical.