Data communications products for networking applications, namely, modems, multiplexers, antennas, switches for voice and data and packet switching, converters, sharing devices, namely, computer hardware for networking applications, hubs, repeaters, bridges, routers, connectors, patch panels for housing gateways, aggregators, switches, multiplexers, multiservice access nodes and network termination units, networking software, terminal servers, monitoring and test equipment, namely, computer hardware that monitors performance of virtual network functions, videoconferencing equipment, namely, Video Gateways for LAN/WAN Videoconferencing, Video Gateways for LAN Videoconferencing, Video Interface Units, Video Stations in the nature of docking stations for computer peripherals in the nature of webcams, Video Interface Cards and Video Communication Software; computer network security hardware, namely, an end-to-end enterprise-wide security system which is a comprehensive internetworking security, data security and security management aid, encrypting firewall that supports subnet to subnet security in TCP/IP environments, featuring automatically synchronized devices spread throughout the user's network; local area networks consisting of Modular Intelligent Hubs, LAN Network Management software and Modular FDDI Hubs; industrial Ethernet routers, industrial Ethernet switches and software sold as a component thereof, namely, software adapted and arranged for operating, installing, testing, diagnosing and managing the foregoing telecommunication equipment; computer network interface devices; computer hardware and software for the distribution of timing information over a packet switched network