HARDWARE AND COMPUTER SOFTWARE FOR USE IN PRIVATE AND PUBLIC COMMUNICATIONS NETWORKS, NAMELY, DATA NETWORKING AND SWITCHING HARDWARE PROVIDING PACKET, CELL AND FRAME TRANSPORT FOR IP, ATM AND ETHERNET CONNECTIVITY; SOFTWARE FOR USE IN THE CONTROL, MONITORING AND MANAGEMENT OF DATA, VOICE, IMAGES AND VIDEO TRANSMISSIONS AND SERVICES SUCH AS INTERNET ACCESS, VIRTUAL PRIVATE NETWORKS AND LOCAL PRIVATE NETWORKS EXTENSIONS OVER COMMUNICATIONS NETWORKS