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An essay is presented concerning gigabit switches.

Discusses the feasibility of local area network (LAN) applications over asynchronous transfer mode (ATM) services. Problems faced by ATM carriers; Opportunities offered by LAN.

Focuses on Advanced Intelligent Network (AIN) and Asynchronous Transfer Mode technologies. Features and applications; Telecommunication efficiency; Traffic concerns; Growth of non-voice-demand; Architectures; Mobility issues.

Presents a strategy for making full use of asynchronous transfer mode (ATM) technology in the core of public telecommunications network. Problem with most ATM services; Need to insure that ATM services are positioned to support the mode of multimedia or native ATM application connection; Need to overlay a higher-level network service on the ATM network core.

Comments on the use of OC-48 size pipes in data networks. Reason why OC-48 asynchronous transfer mode has failed; Question whether routers in the future can support OC-48 and beyond; Prediction on the super-high-end switching concepts and OC-48 trunking capabilities of some products.

Focuses on the potential security problems in telephone switching systems. Use of asynchronous transfer mode; Assumptions of firewall security; Carrier switched services.