Patent ID: 6771605
Filing Date: 2004-08-03
Classification: H04L,H04Q

Abstract:
A method for identifying a malfunctioning module in a telecommunication device, the device having a data path for carrying data packets, the, data path passing through a plurality of modules in the telecommunication device, the method comprising;(a) at an upstream location on the data path within the telecommunication device generating a first payload integrity verification code from the payload of a data packet; (b) attaching the first payload integrity verification code to the data packet; (c) at a downstream location on the data path within the telecommunication device reading the payload of the data packet, reading the first payload integrity verification code from the data packet and checking to determine whether the first payload integrity verification code matches the payload of the data packet; and, (d) if the first payload integrity verification code does not match the payload of the data packet, signalling an error condition.