DEVICE AND METHOD FOR ANALYZING DATA

摘要

PROBLEM TO BE SOLVED: To execute packet analysis in real time by simple constitution by writing positional information of matching data in a packet when data of the packet stored in a second storing means match the bit pattern of a prescribed parameter. SOLUTION: This device is provided with a pattern collating means which collates data of a packet stored in a second storing means with the bit pattern of a prescribed parameter and which writes the positional information of matching data when they match. In this device, the searching part 60 of a data analyzing part 20 searches the pay load of a TS block stored in a TS[] memory 32 by using a previously stored search pattern in accordance with a search command by an operation program to execute pattern matching. Then, in the case of detecting a bit string being matched with the search pattern, the end address of the bit string is written in the local header of the TS block.