NETWORK MONITOR SYSTEM, DATA AMOUNT COUNTING METHOD AND PROGRAM FOR USE IN THE SYSTEM

摘要

In a network monitor system having a plurality of line cards, each of the line cards monitors a communication data amount in consideration of a group or a finer group with conditions other than an IP address added thereto. Each of the line cards controls the communication data amount by the use of a line interface section 11, a header extraction section 12, a flow identification section 13, and a counter section 16.