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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.

The coming of multimedia technology enhances the functions and usefulness of asynchronous data transmission (ATM) systems. But the benefits of multimedia can also be achieved with the use of competing networks such as RSVP and Winsock 2. ATM and accompanying multimedia applications, for their part, can prove useful for TCP/IP protocols by virtue of their easy transport capability., ATM was to have ushered in the era of multimedia. Now RSVP and Winsock 2 may grab the glory. As recently as 1994, multimedia applications - those that combine high-speed [...]

IBM plans to enter the asynchronous transfer mode (ATM) technology market with a series of products which will lead to ATM networks. High-performance routing (HPR), a new version of APPN, will provide congestion control. APPN Dependent LU Server/Dependent LU Requester (DLUS/DLUR) functionality will let 3270-based SNA sessions and legacy applications be routed on an HPR backbone. AnyNet Gateways will allow non-SNA and LAN-oriented traffic to be routed on an HPR backbone. Frame relay will be used in conjunction with ATM to let 1- to 2-Mbps users make the switch., IBM has been a follower rather than a leader when it has come to implementing open, industry-standard data transmission technology that operates at Layer 3 and below. Historically, IBM would [...]

Industry forums are working hard to blur the lines between various fast-packet technologies, causing frame relay, SMDS and ATM to melt together like an ice cream cone on a hot […]

ATLANTA--Conventions are traditionally forums for touting new products and strategies, and SuperComm '93 was no exception--with a flurry of announcements about asynchronous transfer mode (ATM) products, which also dominated discussions [...]

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 […]

The asynchronous transfer mode (ATM) is a backbone network that interconnects local area network (LAN) users over a wide area without reducing communications traffic. Several companies have started integrating ATM into their computer networks to increase efficiency and services. Cisco Systems' Cisco 7000 and Bay Networks' Backbone Concentrator Nodes are two highly-efficient devices that enhance the capabilities of ATMs. These devices improve switching among multiple packets and improves routing services., Switched networking is a hot topic these days. It's impossible to read a trade publication without encountering a LAN switch product announcement or a discussion of virtual LAN architectures. This [...]

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 [...]

With Fore Systems Inc.'s NuBus card, the Mac can now plug directly into an Asynchronous Transfer Mode LAN. But network managers running AppleTalk over that high-speed link achieve interoperability through […]

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 [...]

San Francisco - Asynchronous Transfer Mode is moving ahead of competing protocols as the high-speed-networking standard of choice. Although most developments in the area have centered on powerful backbones, hubs […]

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 […]

But others say approach is nothing new Although more than a few carriers and vendors are miffed with AT&T for grabbing credit for devising a multivendor ATM strategy, their annoyance […]

Update: 'LANs-in-a-Box' Several months ago, this column discussed a concept I called the LAN-in-a-Box (see BCR, August 1991, pp. 12-14). Since then, a number of developments have reinforced the prediction [...]