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, 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, ATM DXI 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), 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), database and software, including file transfer protocol (FTP) 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 ports utilizing the Generic Cell Rate Adaption (GCRA) 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 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 emissions compliance and appropriate ATM, Frame Relay Forum, ITU, ANSI 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:DLNK) 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 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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