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A reconfiguration scheme is proposed in ATM networks which exploits the inherent benefits Virtual Paths in effecting capacity efficiency and fast restoration of the network. The reconfiguration is based on the optimization of bandwidth reconfiguration, where spare bandwidth is gathered from idle bandwidth and freed up bandwidth from switched pairs that have surplus bandwidth. The spare bandwidth is used in a self-healing strategy incorporated into the distributed fault management functions.

Various innovations are being developed in the telecommunications industry that are expected to significantly affect the way businesses conduct transactions. Prospects are favorable for technologies, such as high-bandwidth connections, wireless digital processes, computer-telephone integration and integrated store-and-forward messaging systems. Continual developments in computer technology is also expected to result in more expansive multimedia capacity such as videoconferencing and data conferencing services between firms., Psychological and sociological musings might be the last thing you'd expect to hear from an executive of the leading manufacturer of equipment for communications networks. But last January, Marty Parker, [...]

Using closed-loop flow control, you can keep the ATM data pipe wide as well as manage it efficiently. A primer in closed-loop flow control and the related ICs will help [...]

The use of multicasting, or the process of delivering data to a group of users simultaneously, has recently increased, particularly for real-time applications. In comparing Internet Protocol (IP) and asynchronous transfer mode multicasting, the bi-directionality of IP multicasting, multicast group membership and group addressing are to be considered. IP multicast services are potentially useful for low bit-rate voice conferencing, medium bit-rate video conferencing, distribution of MPEG-1 video signals and reliable multicast of real time and non-real time information.

Innovations in asynchronous communications will help the Bell Regional Holding Companies provide information services in the near future, according to analyst Ron Altman. He discusses how the Baby Bells will grow and profit because of the innovations.

The Asynchronous Transfer Mode (ATM) is a universal packet switching and multiplexing technology designed to support data services. The network ATM layer relays cells which carry a label used for switching. ATM technology underlies future broadband integrated services digital networks and offers long-term benefits for service providers and users. However, issues on signalling and adaptation layer protocols, traffic control and connection usageenforcement still have to be specified.

Broadband wireless is one the asynchronous transfer mode (ATM) applications being tested, especially in the Local Multipoint Distribution Service (LMDS) spectrum range. The LMDS spectrum of 28 GHz can support broadband wireless communications which has the potential to provide ATM cell-based management and traffic prioritizing benefits at a lower cost than wireline solutions such as trenching or leasing SONET., Broadband wireless is one of numerous hybrid ATM applications now being tested. Asyncnronous Transfer Mode (ATM) and wireless broadband are in heavy courtship. Companies such as Newbridge, Siemens and Broadband [...]

Comsat Laboratories plants the seeds, expecting a bumper crop of customers for a new protocol The general population probably thinks ATM by satellite means their favorite automated teller machine uses […]

Sometimes, advance publicity doesn't always measure up to the fact. Just ask the folk who still have 500 gallons of bottled water in their basements meant for the Y2K catastrophe. […]

Remember the Beta vs. VHS wars? To most consumers, the battle between videotape formats is history. For Beta devotees, who bought expensive VCRs that ended up on the scrap heap, […]

Two communications realms witnessing high degrees of single-chip integration in 1996 were asynchronous transfer mode switching, particularly in WAN access applications, and the wide range of digital subscriber line (DSL) […]

There are several approaches to building a large-scale Asynchronous Transfer Mode (ATM) switch, such as shared memory, input buffering, output buffering and input-and-output buffering. Of them, output buffering (including shared-memory […]

National Semiconductor and MCI are testing a new asynchronous mode transfer (ATM) network using incAlliance's isoEthernet product. The new product allows local area networks to transfer both voice and video data reliability without interruptions or data loss. IsoEthernet promises to push ATM beyond current applications and toward full-voice and video transmission. Currently, most voice and video transmission are handled by integrated services digital networks., MCI, National Semiconductor run ISDN traffic over Ethernet LANs with isoEthernet. For users wanting voice, video and data on their desktop, the goal seemed clear: asynchronous transfer mode (ATM). Just [...]

The development of a low-cost, low-power method of squeezing the transmission of up to 155 Mbits/s into ordinary voice-grade wire may not only provide a boost for todays's computer networks, […]

Rapid advances in data routing technology along a descending cost curve are wreaking havoc with MSO and telco efforts to prepare their networks for delivery of interactive services. Where a [...]

Now that much of the initial ballyhoo around ATM has subsided, users are sifting through the fact and the fiction surrounding the high-speed transport technology to determine how to best […]

In early June, Sprint announced Sprint Integrated On-Demand Network (ION), a packet-switched ATM network with virtually unlimited bandwidth to provide integrated voice, video and data over one phone line. Sprint […]

The growing demand for digital subscriber line (xDSL) applications has been met with questions over telecommunication standards, system innovations and impact on the profits of regional Bell operating companies. Industry officials cite the marketing competition between xDSL and cable modems, which opens up opportunities for fiber-based local exchange carriers (LECs) and competitive LECs., Digital subscriber line (xDSL) mania was obvious at last month's Supercomm. Even vendors with only integrated services digital network (ISDN) products chose to call them IDSL to join the rush. [...]

Sunnyvale, Calif. - Boeing Co.'s former ARGO Systems test and measurement group has joined hands with Radcom Equipment Inc. (Mahwah, N.J.) to jointly market a protocol analysis system for 622-Mbit/second […]

Montgomery Village, Md. -- Integrated Telecom Technology Inc. (IgT) is sampling a switching element and routing table for asynchronous transfer mode that could revolutionize crossbar switching architectures. The Quad Switching […]

Asymmetric Digital Subscriber Line (ADSL) is seen as the most efficient and cheapest technology in providing more bandwidth to speed up Internet access. More modern suppliers are backing the ADSL technology, with 58,000 xDSL lines expected to be installed during 1997. Unlike its Integrated Services Digital Network counterpart, ADSL utilizes plain old telephone service lines to have speeds as high as 4.4 Mbps (megabits per second). Aside from providing high-speed Internet access, ADSL is also ideal for teleconferencing and video-on-demand., Computer people talk alot about 'bandwidth.' America On-Line supposedly oversold their bandwidth and Erol's Internet service brags about the tremendous bandwidth it can offer. So, what is bandwidth? Simply, it's [...]

As users wait for carriers to deploy Digital Subscriber Line (DSL) technology for high-speed Internet access, vendors are working at a frenzied pace to roll out better and less expensive […]

Private network-to-network interface (PNNI) is seen as the alternative to the interconnecting switches in an asynchronous transfer mode (ATM) network. PNNI provides the routing protocol for sending information between end stations through ATM switches over a network. The two basic functions of PNNI are routing and signaling. It also uses a link state algorithm wherein each link iss known to every switch in the network., Private net-to-net interface shows the way. Interconnecting switches in an ATM network is never a picnic and bringing more than one vendor to the banquet is worse than inviting an [...]

Ithaca, N.Y. - Even as the ATM Forum met in Anchorage last week to vote on a 12-to-18-month "spec freeze" on new standards, developers were cheering a Cornell University effort […]

As the network industry gears up to migrate to next-generation virtual LANs (VLANs), Asynchronous Transfer Mode (ATM) emerges as a key enabling technology. And the pace at which VLANs are […]

The Switched Multimegabit Data Service Interest Group will announce at Networld + Interop technology that will enable telephone carriers to offer SMDS over their emerging Asynchronous Transfer Mode-based backbone networks. […]

AT&T next summer plans to make enterprisewide Asynchronous Transfer Mode (ATM) service more attractive to mainstream users with a low-cost alternative to current options. AT&T this month became the first […]

Anxious to answer cable and telephone company interest in broadband switching, a handful of computer and telecommunications companies last week launched asynchronous transfer mode (ATM) initiatives. The companies, which include [...]