Multiservice ATM concentrator provides superior network performance and reduced network costs; DL7100 multiservice ATM concentrator offers Soft Port -- any service on any port -- for rapidly evolving multiservice ATM networks.SUNNYVALE, Calif.--(BUSINESS WIRE)--May 12, 1997--Digital Link today announced its new DL7100 Multiservice ATM Concentrator, a high-capacity system offering integrated multiservice access, interworking (standard) interworking - Systems or components, possibly from different origins, working together to perform some task. Interworking depends crucially on standards to define the interfaces between the components. , adaptation and concentration. It multiplexes and switches voice, data, video, low-speed cell and Frame Relay for ATM transmission. The DL7100 supports up to 36 DS1s (864 DS0s) and 4 DS3s and combines cell switching with service adaptation in a high-performance, scaleable and cost-effective package. "The DL7100 is the ideal service access point for rapidly evolving ATM networks being deployed by carriers and Internet Service Providers (ISPs) because it combines our Soft Port feature (any service on any port,) high-port density, full redundancy and carrier-class physical design," said Steve Tabaska, Digital Link's chief technology officer and vice president of engineering. "Its sophisticated bandwidth management and Soft Port feature enables service providers to respond rapidly to customer requests for service," said Tabaska. Economical integration of multiple services and applications The DL7100 Multiservice ATM Concentrator extends new service access to ATM core networks through low-speed traffic aggregation of ATM and other traffic protocols to broadband ATM trunks. "The DL7100 is more cost-effective on a per-port basis than high-capacity ATM core switches that are less efficiently filled," said Jack Musgrove, vice president of marketing at Digital Link. "This enables service providers to initiate service for much lower entry costs, an important factor in today's highly competitive environment," he said. The DL7100 supports ATM UNI, Frame Relay, ATM FUNI FUNI Frame-Based User Network Interface FUNI Frame Based Uni , ATM DXI DXI Data Exchange Interface DXi DirectX Instrument (plugin standard for software synthesizers) DXI Digital Exchange Interface DXI Direct Exchange Item DXI Direct X Instruments DXI Digital Express International and Circuit Emulation Services (CES). Software-defined service identity provisioning on individual ports makes it easy to deploy access to ATM networks. The Soft Port feature provides maximum flexibilty to service providers by enabling multiple services with only one module type. "This reduces the investment in unique hardware, eases services and spares provisioning and lowers overall life cycle costs," said Musgrove. Sophisticated, redundant ATM-based architecture The DL7100 Multiservice ATM Concentrator is based on a modular, software-defined and standards-based architecture that can easily evolve in conjunction with future services and requirements. The DL7100 adapts subscriber traffic to ATM cells for internal concentration and switching to minimize internal delays and provide shaping, policing and queuing, as well as scaling from 64 Kbps to broadband trunk speeds. These capabilities are important to network managers because they help gain control of and manage bandwidth through the network. The DL7100 provides high service availability for mission-critical applications. It has a fully redundant data and power bus, as well as redundant management modules, network interface modules and subscriber interface modules. Redundant management processor modules (MPM MPM Multi-Processing Module (Apache) MPM Manufacturing Process Management MPM Milwaukee Public Museum MPM MMW (Millimeter Wave) Power Module MPM Master of Project Management (degree) ), each with on-board dedicated processors, manage the cell bus, collect statistics and process alarms. In addition, the management processor modules support a browser-based craft interface, management of the Simple Network Management Protocol (SNMP (Simple Network Management Protocol) A widely used network monitoring and control protocol. Data are passed from SNMP agents, which are hardware and/or software processes reporting activity in each network device (hub, router, bridge, etc. ), database and software, including file transfer protocol A communications protocol used to transmit files without loss of data. A file transfer protocol can handle all types of files including binary files and ASCII text files. See Kermit, Zmodem and FTP. (FTP FTP in full file transfer protocol Internet protocol that allows a computer to send files to or receive files from another computer. Like many Internet resources, FTP works by means of a client-server architecture; the user runs client software to connect to ) downloads and upgrades. Dual port network interface modules (NIM) offer DS3 ATM UNI/NNI and 1:1 interface redundancy. The subscriber interface module (SIM) offers port-by-port software-defined service identity and 1:N redundancy. The DL7100 SIM module includes four T1 ports for Frame Relay, ATM UNI, CES, FUNI, and DXI subscriber interfaces. The redundant power bus includes provisions for connections to A&B sources for standard central office battery supplies. All modules are hot-swappable and automatically configured at power up based on the configuration data contained in non-volatile storage on the MPM. Service Level Assurance The DL7100 provides extensive traffic management capabilities which include the following: shaping, queuing, policing, and partial packet discard for overall quality of service assurance. The DL7100 performs policing, shaping, and packet discard per virtual circuit or virtual path (VC/VP). Policing is performed on all ingress ports in accordance with ATM Forum defined algorithms. Traffic shaping is done on DS3 egress See ingress. ports utilizing the Generic Cell Rate Adaption adaption see adaptation. (GCRA GCRA Generic Cell Rate Algorithm GCRA Global Coral Reef Alliance GCRA Gas-Cooled Reactor GCRA Government Committee on Religious Affairs (Vietnam) ) to a granularity of one cell per second for the most accurate shaping. Substantial System Management Capabilities The DL7100 provides system management capabilities such as integrated SNMP agent, statistics collection, alarm monitoring, event logging, access security and performance reporting. The DL7100 features extensive connectivity via Ethernet, multiple serial ports, Telnet and the HTML HTML in full HyperText Markup Language Markup language derived from SGML that is used to prepare hypertext documents. Relatively easy for nonprogrammers to master, HTML is the language used for documents on the World Wide Web. user interface. The user interface is browser-based and compatible with industry standard browsers such as Netscape Navigator or Microsoft Explorer. The DL7100 can be managed via standard SNMP management platforms such as HP Openview and Digital Link's recently announced WANview Unix Network Management System. Standards Compliance The DL7100 is designed for stringent carrier operating environments and complies with national and industry standards including Bellcore NEBs for physical size, power dissipation, vibration and earthquake resistance. It also meets UL standards for flammability and operator safety, as well as FCC (1) (Federal Communications Commission, Washington, DC, www.fcc.gov) The U.S. government agency that regulates interstate and international communications including wire, cable, radio, TV and satellite. The FCC was created under the U.S. emissions compliance and appropriate ATM, Frame Relay Forum, ITU, ANSI (American National Standards Institute, New York, www.ansi.org) A membership organization founded in 1918 that coordinates the development of U.S. voluntary national standards in both the private and public sectors. It is the U.S. member body to ISO and IEC. and Bellcore standards. Price and Availability List prices for the DL7100 begin at $21,000 with several typical configurations priced under $50,000. General availability is July 1997. About Digital Link Digital Link Corporation (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on :DLNK DLNK Digital Link DLNK Destination Link ) designs, manufactures, markets and supports a broad range of high-speed digital access products, ranging from 56 Kbps to 155 Mbps for global wide area networks. The company's products are used by service providers as infrastructure equipment and by business enterprises for connectivity to WAN services, such as leased lines, Frame Relay, SMDS (Switched Multimegabit Data Service) A high-speed, switched data communications service offered by the local telephone companies for interconnecting LANs in different locations. It was introduced in 1992 and became generally available nationwide by 1995. and ATM. Digital Link is headquartered in Sunnyvale, California with worldwide sales offices in the UK and Germany. Company information about products and services is available on Digital Link's Web site: http://www.dl.com . CONTACT: Digital Link Leslie Conley, 408/745-4195 lconley@dl.com or Breakthru Communications Barbara Kline, 408/777-9364 bkline@breakthrucom.com |
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