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The shift of telephone companies and enterprise customers to an all-Internet Protocol (IP), multiservice, packet-switched network will be gradual. This is exemplified by their continuous support for existing protocols and interfaces such as time division multiplexing, asynchronous communication, frame relay and synchronous optical networks. IP networks' use is still limited to Internet-based applications such as electronic commerce, virtual private networks, streaming media and conferencing., How will new processors and software change the way networks are built? For a few true believers, it still may be an article of faith that the Internet has changed [...]

The traditional teaching paradigm, i.e., talk and chalk, seems doomed in the long run for both economic and societal reasons. First, the costs of higher education as we know it [...]

Asynchronous Transfer Mode (ATM) is a multibillion-dollar international business. The standards-based technology supports several telecommunications benefits. These include multimedia applications support, multigigabit capacity scalability, and service quality based on application. Internal revenues for ATM equipment and services are forecasted to reach about $9.5 billion in 2001, with a compound annual growth rate of 41%., First everyone loved ATM, then everyone hated it. Today, practicality has set in: People buy it. Diehard baseball fans know that the real reason the Boston Red Sox can't win [...]

Several switching architectures proliferate in the market including dense wavelength division multiplexing (DWDM), SONET, asynchronous transfer mode (ATM) and ADSL while several more are being developed. New and future product developments are aimed at providing options for a high-capacity network and for reduced cost/performance. For example, Sprint has introduced the Integrated On-Demand Network (ION) in May 1998 which consists of almost every type of switching architecture available but equipped with the technology provided by Cisco, and not the major suppliers., The most basic virtue in information technology is humility. Just when I think I've got it all figured out and can draw a clear line from where we are to [...]

Dense wave division multiplexing (DWDM) and asynchronous transfer mode (ATM) technologies have the capability to enhance synchronous optical networks (Sonet) infrastructures to allow carriers to meet the anticipated surge in demand for next-generation telecommunications services. DVDM systems permit a single fiber to carry multiple wavelengths to expand the capacity of Sonet networks while maintaining reliability. Moreover, ATM can be statistically integrated onto virtual paths that travel across Sonet rings to regulate telecommunications traffic on an as-need basis., If Sonet is to survive next-generation demand, it will need a little help from some new friends. There's a tidal wave of data heading for the public switched telephone network [...]

The full-service network (FSN) is a new concept in the telecommunications industry. It has the ability to provide both narrowband and broadband services to commercial and residential clients. Its wide range of applications include telephony, Internet access, data services, switched digital video services and videoconferencing. FSN is delivered via the medium of the asynchronous transfer mode (ATM). Further assurances in the technology's reliability and quality are needed for the concept to gain wider acceptance., What's ATM's role in broadband fiber-in-the-loop applications? Welcome to the era of the full-service network, or FSN. Its architecture provides a service-independent platform for dynamic bandwidth allocation, with the granularity [...]

The Richland Operations of Boeing Information Services is planning to apply asynchronous transfer mode (ATM) to integrate the communication services of the Dept. of Energy Richland Labs' Hanford Nuclear Reservation. This undertaking would transform the voice, data and video systems of Hanford into a unified PC-centered communication system using a multimedia PC. This means that only one set of wires would provide all three data types over a single writing structure, one set of network hardware and software and one management and support function., The Department of Energy's Hanford site plans to put voice, video and data on one network. Here's why. Boeing Information Services' Richland Operations plans to use ATM to consolidate communication [...]

Carriers must tap more cost-effective yet reliable ways to provide interconnections for local area network services. However, the provision of voice services over asynchronous transfer mode (ATM) is expensive. A combination between ATM and Synchronous Optical Network (Sonet) is an ideal setup in optimizing voice and data traffic as it allows network providers to establish an architecture that uses up the price-performance resiliency of Sonet and the concentration capabilities of ATM., Optimize circuit-switched voice and packet-switched local area network traffic over Sonet - and save money in the process. Carriers need better ways to provide interconnections for local area network (LAN) [...]

Switching in networking such as asynchronous transfer mode and Ethernet is rapidly replacing the technology of local area networks in workgroup communications. Three major architectural approaches to networking presented include the standalone device model, the route server model and the integrated model. Network managers must carefully choose architecture which will serve their organizational needs., The reports of this network mainstay's death are greatly exaggerated. In fact, new application areas are likely to trigger growth. In the 1980s, N.E.T.'s IDNX, General DataComm's MegaMux and the [...]

Amoco Corp.'s successful Asynchronous Transfer Mode (ATM) Research and Industrial Enterprise Study (ARIES) provides clear evidence that ATM technology is highly beneficial and will soon see a wide array of applications. Amoco conducted ARIES to determine the business value of developing a network based on ATM technology. The tests demonstrated ATM's ability to generate high-resolution images, achieve real-time broadcast video and bidirectional real-time video transmission and support advanced Internet services., ATM trials fill the corporate landscape: Interexchange and local carriers, high-tech companies, hospitals and Hollywood. Even CATV companies see a network fit in broadband expansion. But not all ATM trials [...]

Asynchronous transfer mode (ATM) is a technology which managers should consider, but the arguments for using it do not apply to all companies. The added bandwidth ATM provides is seldom needed at the desktop level, and would be better used on selected desktops or with file servers. Increased demand from many users can be alleviated by including ATM in the network's backbone which speeds up throughput. An entire backbone made from ATM switches can greatly simplify a network architecture which has grown too complicated. Combined with edge-routing, such a system will be fast and provide users with virtual LAN capability., It would be hard for any technology to live up to the hype that has accompanied the introduction of Asynchronous Transfer Mode (ATM), and network managers are finding it hard [...]

Canadian telecommunications firms MaxLink Communications and WIC Connexus have selected asynchronous transfer mode (ATM) as the base for their LMDS services because the technology is capable of providing multiple services via a unified network setup. Furthermore, use of the ATM has the advantage of flexibility and ability to stand up to future needs. The two companies' initial target for their LMDS services are small and midsized businesses., What can you do with a spectrum that does everything? For two Canadian wireless operators, you put it in the network. In allocating spectrum, the government of Canada announced its [...]

Telecommunications and cable TV companies are turning to asynchronous transfer mode (ATM) to manage the increasing switched traffic over their networks. ATM is a transmission standard which combines the best qualities of circuit switching with packet switching's cost-effectiveness and capacity. ATM traffic may be carried in almost any available transmission medium. Thus, it is the most promising technology for improving cable TV and telecommunications systems., With more switched traffic on the network, service providers are turning to ATM for help. Thanks to powerful personal computers and wireless telecommunications, prospects for the so-called Information Superhighway are [...]

With numerous trials underway, many feel that VOD will begin large-scale commercial deployments over the next year. THE CURTAIN APPEARS TO BE rising for video-on-demand (VOD). After years of being [...]

A new approach to ATM networking leverages existing infrastructure while transitioning to Internet Protocol. There is much ado about the promise of an all-Internet Protocol (IP) over optical network, but [...]

Optical switches hold the key to building reliable, high-performance, all-optical metro networks that upgrade easily and inexpensively; but ultimate success depends on making the right component choices. Metropolitan networks are [...]

How will we meld today's technology to create efficient multiservice networks? In examining the evolution of multiservice network models, it's clear that two paradigms have consistently been in opposition: the [...]

When most of us think 'ATM,' we think about the output of the ATM Forum. Indeed, many of the ATM switches and access devices sold today depend on carrier services, [...]

Despite the roll-out of broadband services across the region, Asia's telecom users are quite happy with existing networking technologies and services, namely ISDN, leased line and good old dial-up Internet [...]

Actually, it's not whether one technology will win or lose--it's how your network plays the multiservices game. Today, most carrier services, including Internet Protocol (IP), are delivered over a time-division [...]

The local exchange carrier's access network is the most fundamental element in our relationship with carrier services. The technology and protocol that the access network supports determines the basic features [...]

High-definition television, new compression standards, and flexible transport platforms such as DWDM pave the way for high-bandwidth video-transmission services over fiber-optic networks. Today, broadcast video, which is mainly analog and [...]

synchronous Transfer Mode (ATM) cell-based transport over Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) will unplug the data bottleneck in local access and metropolitan networks. At least that's what vendors releasing [...]

Telecommunication firms are faced with the choice of using asynchronous transfer mode (ATM) or Internet Protocol (IP) infrastructures in the provision of network services. ATM and IP can actually be used together in wide-area networks but this entails a more complex operation on top of higher burdens in terms of management and operation. Another problem is the absence of an industry standard in combining ATM and IP., Many network service providers find themselves at a difficult crossroads. The traditional carriers know that their circuit-switched networks must soon be replaced with some type of packet-based technology to better [...]

Remember how, back in the '80s and even early '90s, ATM was going to sweep the world, even down to the desktop? Well, if you listen closely in the next [...]

ATM deployments in most carriers these days are in 'maintenance mode,' while the top equipment suppliers have halted further research and development in the technology. Indeed, port shipments have been [...]

Asynchronous transfer mode (ATM) or asynchronous communications initiatives are aimed at enhancing the quality of services of Internet service providers. These projects intend to utilize ATM networks where voice, data and video traffic would flow with ease and quality. The ease of flows, which will be from end-to end, will follow strict quality of service standards. However, such aims of these projects seem unrealistic because they require very complex mechanisms., Broadband networking means many things - faster networks, bigger networks and new kinds of applications. Critical to all these improvements is a fundamental shift from single class-of-service networking to having [...]

A survey of ATM LAN customers showed that the technology's marketability is driven by the need of businesses for high-capacity networks that have increased bandwidth and capacity to support high-volume data traffic and delay-sensitive applications. It was also revealed that ATM's applications range from being used as a campus backbone to functioning as support for a number of networking needs., A look at how real-world customers are using ATM in enterprise networks: You might find some surprises. Old assumptions die hard, but it may be time to rethink ATM s [...]

Xylan Corp and Network Equipment Technologies (N.E.T.) have launched their new products for asynchronous transfer mode (ATM). However, different approaches were used. Xylan used the LAN approach modifying the architecture of its OmniSwithch though it retains its distributed switching fabric implemented across interconnected ASICs. N.E.T., has featured its Promina 4000, Promina 2000 and CellXpress with WAN route. The CelXpress is a single-slot card that fits into any of the IDNX family members., End-to-end ATM has proved more elusive than originally thought, so the market has splintered somewhat in its approach to the problem. Two vendors, Xylan Corp. (Calabasas, CA) and Network Equipment [...]

Enterprise networks that use asynchronous transfer mode (ATM) technology to support information systems derive benefits from ATM's multiplexing and intranet capabilities. Unused bandwidth is eliminated by multiplexing all types of data traffic into one network. Moreover, ATM provides accurate and stable performance for corporate applications using the Internet. It gives network architectures the ability to adapt to future changes., During the 1980s, data networks typically supported a single information source--a mainframe. Today, that's changing as many enterprise networks support client systems (personal computers) that have a wide variety of [...]

Internet Service Providers (ISPs) can reap benefits from the use of asynchronous transfer mode (ATM) technology. Network management is improved since ATM can provide new access routes in cases of network failures. Switching time is also increased as compared to ordinary routers. Savings can be made by acquiring a DS3 ATM which costs less than ordinary DS3s. ISPs may also offer additional connections to its customers by using ATM-based equipment., The Internet embodies a new vision--a world where information is at the disposal of anyone, anywhere. It has sparked tremendous excitement among both businesses and the general public, so much [...]

One of the biggest issues concerning asynchronous transfer mode (ATM) technology concerns its feasibility for end-user, or desktop, applications. Past experience suggests that ATM will one day be used for end-to-end, high-performance network applications. Most experts agree that ATM will come into widespread use in much the same way that Ethernet and TCP/IP have become common today., ATM has been controversial almost from the start, in large part because it is seen as a way to achieve many different goals. One of the most contentious issues has [...]

Sprint Corp., Splitrock Telephone, U S WEST Inc. and Southwestern Bell Corp. are involved in a project called the Multi-dimensional Applications and Gigabit Internetwork Consortium (MAGIC), which aims to bring the military's high-speed data transmission technology to the mass market. Among MAGIC's goals is to develop remote live imaging for medical and other applications based on asynchronous transfer mode and SONET data transfer technologies., Telcos' Testbed in Kansas City Seeks to Move High-Speed Military Applications to the Mass Market Call it gigabits or 'teravision.' Those are the words Sprint and a handful of LECs [...]

Business comunications have called for a wider application of broadband technologies but are prevented by the existence of complex local area networks (LANs) that currently serve their systems. A solution to this dilemma is to delay the transition from LANs to broadband technology by using switched LANs on smaller areas and frame relays for wider areas. However, the use of LANs with enhanced switching capabilities is still preferred by some companies who are not eager to adopt broadband applications., This past November, we held the 8th annual Next Generation Networks Conference, an event that always provides a great opportunity. to catch up on what's hot - and what's not [...]

Telephone companies can transmit multiple digital television channels using asynchronous transfer mode cells over asymmetrical digital subscriber line (ADSL). Since ADSL can encode high-speed digital data for transmission over copper, telcos can also provide interactive video services. The technology likewise allows individual channels to be switched both in the network and at the subscriber's premises., Californians may love their cars, but apparently many love their computers and telephones just as much. Pacific Bell reports 90% of companies that took advantage of its post-earthquake emergency telecommuting [...]

Asynchronous transfer mode (ATM) has proven itself to be completely scalable in terms of speed, moderately scalable in terms of size and distance and not yet scalable in terms of traffic type. ATM speeds range from 1.5 Mbps to over 622 Mbps. While the variety of speeds makes interoperability a problem between nodes of different sizes, eventually certain interfaces will become standard. The same problems make it difficult to predict when ATM will be scalable in terms of distance, and thus when networks of national and international size will communicate. ATM is not yet available for use with video or interactive media., ATM holds promise for future networks in many areas; in a sense it represents a kind of 'grand unification' of our diverse networks: local and wide area; voice, data and [...]

Quick--what network service will grow 27 percent this year, and has a projected annual growth rate of almost 20 percent through 2007? How about ATM? No one will confuse 27 [...]

Telecommunications carriers are expected to utilize asynchronous transfer mode (ATM) technology-based networks to manage various concerns related to the mixing of data and voice sources while combining these onto a protocol that can be amplified higher speeds. ATM will permit carriers to protect their infrastructure investments while merging their frame relay, systems network architecture and Internet traffic onto a single network at the same time. ATM will also allow carriers to market their services to corporate clients and lower level carriers, including Internet service providers., ATM is the carrier's silver bullet. Data communications will vastly exceed the voice market in terms of bit bandwidth on the public switched telephone network (PSTN). Most carriers will be [...]

Metropolitan area networks (MANs) have provided the carrier industry with broadband data services as in local area networks (LAN) for voice services and communication lines. However, access networks slow down processing and profitability among carriers. Redesigning the carriers' network is suggested to achieve optimum network performance. MANs can be redesigned so as to match LAN speed and meet packet data demands. Asynchronous transfer mode can also provide access networks with an integrated service transport which offers carriers with broadband data services for the voice market demand., Public networks are about to run out of steam. Carriers need a network that delivers the right combination of standards-compatibility, resiliency, bandwidth flexibility and low cost. Data will be key [...]

The asynchronous transfer mode (ATM) equipment has been greatly utilized in several computer networks in the past. Companies including Fujitsu Network Communications have been confident with the use of these ATM features in their newest Sonet product line. The introduction of this technology is useful in providing levels of reliability and availability better than old ATM technologies., Dave Beebe, senior manager of technical marketing at Fujitsu Network Communications, and Jeffrey Ross, director of network planning at Fujitsu, discuss Sonet's rescue abilities with Senior Editor Arielle Emmett What [...]

Many service providers use multiple networks, tapping asynchronous transfer mode (ATM) at some locations while using frame relay at others. However, the two networking services can be linked to provide a new type of service to business customers. A technical specification from the Frame Relay Forum, FRF.8 Frame Relay ATM PVC Service Interworking counts on the mapping of crucial network management features and the handling of the upper layer protocol encapsulation to make it work. All network management features must be mapped from one network to their equivalent features on the other., ATM and Frame Relay Service Interworking Managing multiple networks is becoming a common, chaotic juggling act for many businesses. It's not uncommon for large or quickly growing companies with an [...]

The market growth of frame relay has been slow, due to hard economic times and overstated expectations, but it will improve as carriers such as AT and T offer it with their telecommunications services. AT and T plans to use StrataCom's new BPX and AT and T Network Systems' GCNS-2000 for both advanced services and asynchronous transfer mode (ATM). StrataCom's product will be included as an edge vehicle with frame relay that will manage the segmentation and reassembling of data., There's a reason that score cards are handed out at sporting events--to the uninitiated, they are the only way to tell who plays what position. As our industry evolves from [...]