News Release
Jun 19, 1995

Cisco Enhances LightStream 2020 ATM Switch with Industry- Leading LAN/WAN Services

ATMInternetworking White Paper BILLERICA, Mass., June 19,
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BILLERICA, Mass., June 19, 1995 -- Cisco Systems today announced advancedfeatures for its LightStream2020 enterprise ATM switch that boostperformance, integration, connectivity and manageability for applicationssuch as videoconferencing and multimedia. The new feature set includes ATM,FDDI and Ethernet services for LAN and WAN environments that enhance theLightStream 2020's position as the industry's most advanced multi-serviceenterprise ATM switch.

Key new software and hardware features, available in August as part of theCisco InternetworkOperating System (Cisco IOS(tm)) for ATM are; T1/E1circuit emulation, application-specific quality of service for integratedLAN ports, high-performance multicastservice , a frame relay networknode interface, a topology map and a new eight-port T3/E3 interface card.

"While many users view ATM as the foundation for the enterprise networks ofthe future, they need to improve and preserve their investments in existingnetwork infrastructures," said Joe Uniejewski, director of marketing forenterprise ATM products. "As an evolutionary step toward end-to-end ATM,many are adopting switched internetworking solutions that combine an ATMbackbone with such traditional interfaces as Ethernet and FDDI. The CiscoLightStream 2020, with the new enhancements, provides an ATM-basedmultiservice solution that will migrate easily to full ATM at the user'space."

"Our internetwork topology is a veritable alphabet soup," said Jim Nemchak,director of network services at the University of Colorado Health ScienceCenter. "We wanted an ATM solution that could support multiple LANprotocols, interact with our existing interface technology, and deliverwire-speed throughput. The Cisco LightStream 2020, with its newfunctionality, meets all our needs."

T1/E1 Circuit Emulation, Application-Specific QoS

T1/E1 circuit emulation, based on the ATM Forum AAL1 specification, letsusers interconnect PBX, bandwidth managers and video conferencing equipmentacross a LightStream 2020 network using constant bit rate services. TheLightStream 2020 supports up to eight T1/E1 ports per module for a maximumfanout of 72 ports -- the industry's highest port density for an enterpriseATM switch.

Application Specific Quality ofService (AS/QoS), an industry first,extends ATM QoS to FDDI and Ethernet traffic, by application, at bothlayers 2 and 3. This allows ATM bandwidth and quality of service to beallocated to LAN-based "power users" of multimedia ,desktop video, client/server and other applications.

High Performance Multicast, Frame Relay, Topology Map

High Performance Multicast Service (HPMS) allows the LightStream 2020 toforward multicast packets at full line rate within the ATM infrastructure.In conjunction with AS/QoS, HPMS lets the user allocate bandwidth andpriority of service by application to multicast groups. The LightStream2020's HPMS utilizes point-to-multipoint ATM connections to deliver highperformance multicast service.

Frame Relay Network Node Interface allows the LightStream 2020 to connectto other vendors' frame relay switches, passing frames through a high-speedATM infrastructure.

In addition, a new topology map feature allows the user to view networkstatus -- color-coded by traffic type or priority -- and changes inphysical topology. A pop-up menu provides detailed information on allLightStream 2020s in the network.

New T3/E3 Hardware Interface Module

An eight-port T3/E3 interface card boosts performance to line speed for upto 72 T3/E3 ports on a 12-slot LightStream 2020 chassis, providing thehighest T3/E3 port density of any available switch.

The new release of the Cisco LightStream 2020 will be available in August.

The Cisco LightStream 2020 enterprise ATM multiservice switch provides LANand WAN internetworking for campus or global environments. With theindustry's most advanced traffic and buffer management, it offers completecontrol over bandwidth allocation, Quality of Service (QoS) and congestionavoidance today, and a growth path as networks scale in size andcomplexity. With 72 ATM ports, high-performance throughput and support forATM, Ethernet, FDDI, frame relay and circuit emulation, the CiscoLightStream 2020 provides exceptional value, connectivity and flexibilityin business-critical applications requiring data, voice and video. Itsmultiservice versatility has led to its deployment by TeleportCommunications Group as an edge and central office switch, by MCI as acustomer premises switch, and by the University of Colorado as a campusbackbone switch.

Cisco Systems,Inc. is the leading global supplier of enterprisenetworks,including routers, LAN and ATM switches, dial-up access servers and networkmanagement software. These products, integrated by the Cisco InternetworkOperating System (Cisco IOS(tm)) link geographically dispersed LANs,WANs and IBM networks. Cisco is headquartered in San Jose, Calif., and inthe U.S. is traded under the NASDAQ symbol CSCO.


Posted: Jun 19 10:34:13 1995