TELECOMMUNICATIONS PRODUCTS, NAMELY, COMPUTER CABLES, COMPUTER CONNECTORS, SWITCHES, ROUTERS, WIRELESS NETWORK PRODUCTS, NAMELY COMPUTER CARDS, ANTENNAS, MODEMS, ACCESS POINTS, BRIDGES AND SERVERS, NETWORK TOPOLOGY SOFTWARE FOR DIRECTING AND MANAGING NETWORK COMMUNICATIONS, COMMUNICATIONS SOFTWARE FOR DETECTING TRANSMISSION FAILURES, MONITORING USER TRAFFIC, AND MANAGING OPERATION OF NETWORKS