A network traffic monitoring apparatus and method of monitoring network traffic on a network path is disclosed. The first unit capacitors and the second unit capacitors are arranged in an array with rows and columns and placed in an alternating pattern in each row and each column. The blender circuit includes a first, second and third circuits. Typically, fibers within the web are bonded together at points of fiber intersection, preferably with autogenous bonds, to provide a compression-resistant matrix. It then is determined if a reply message has been forwarded by all subnet members participating in the multicast.