Traffic monitoring system in a packet switched network with wireless connected data aggregation node

摘要

The invention relates to port mirroring with filtering of information on a digital network. By replacing standard interface modules on router or switch ports with modules containing filtering hardware (340) and a wireless (350) link to an aggregation module (440), traffic of interest may be monitored. The combination of filtering on each monitored port, and communicating wirelessly with the aggregation node reduces the volume of information which must be handled, and separates it from normal network traffic.