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| NETWORK PRODUCTS VSC874 GigaStream(R) 10 Gbps Queue Manager with Integrated SPI4.2 Interface VSC874 10 Gbps GigaStream Queue Manager Ingress Queues . . . HSSL Load Balancer HSSL HSSL MANAGER MANAGER Reorder Manager Scheduler High Speed Serial Links (HSSL) High Speed Serial Links (HSSL) QUEUING/SCHEDULING QUEUING/SCHEDULING Scheduler SPI4.2 Interface SPI4.2 Interface Packet Segmentation SPI4.2 PHY LOGIC Static Load Balancer . . . Egress Queues DATA PROCESSING DATA PROCESSING Packet Reassembly . . . Reassembly Buffers Ingress Queues . . . HSSL Load Balancer HSSL HSSL MANAGER MANAGER Reorder Manager Scheduler High Speed Serial Links (HSSL) High Speed Serial Links (HSSL) QUEUING/SCHEDULING QUEUING/SCHEDULING Scheduler . . . Egress Queues Parallel Parallel Interface (CPU) Interface (CPU) I2C Interface I2C Interface (CPU) (CPU) JTAG Interface JTAG Interface F E AT U R E S : SPI4.2 Interface 16 High-speed Serial Links Dual Ingress and Egress Queuing Engines Direct Mode Fabric Mode Framer Interface Packet Interface Interfaces with Existing GigaStream Devices Automatic Load Balancing Across Switch Chips BENEFITS: A standard 10 Gbps Interface Provides 40 Gbps of Backplane Bandwidth Can Provide Eight Traffic Classes Per Queuing Engine No Switch Chip is Needed Supports Mesh Mode Configuration Can Operate in a Dual Star Fabric Configuration Can Connect Directly to Framers or Macs Can Connect Directly to NPUs and CPUs Can Easily Operate with Existing GigaStream Devices Traffic is Only Sent to Active and Working Switch Chips A P P L I C AT I O N S : IP Service Appliances 3G Wireless Platforms Edge/Access Routers Media Gateways PB-VSC0874-001 Multi-service Provisioning Platforms VSC874 GigaStream(R) 10 Gbps Queue Manager with Integrated SPI4.2 Interface GENERAL DESCRIPTION: The VSC874 is a highly integrated 10 Gbps Queue Manager part of Vitesse's GigaStream family of Intelligent Switch Fabric devices. This device provides a standard-interface intelligent switching solution ideal for a variety of access/edge, metro, and core applications. Typically, the VSC874 is used on a variety of line cards where it connects directly to media access controllers (MAC), framers, and network processing units (NPU). These line cards can then be interconnected using either a low-cost mesh without a switch device (`direct mode') or traditional central-switch architecture (`fabric mode'). S P E C I F I C AT I O N S : SPI4.2 Interface that can Operate up to 16 Gbps 16 High Speed Serial Links that can Operate up to 40 Gbps Can Operate in Direct Mode or Fabric Mode SPI4 Interface can Operate in Framer Mode or Packet Mode Up to 16 Traffic Classes for Unicast and Multicast Data Provides SPI4 Burst Segmentation and Re-assembly Automatic Load Balancing Across one to Sixteen VSC882 Switch Chips Parallel and Two-wire Serial Interface Housed in a 672 BGA Package DIRECT MODE DIAGRAM: 10 Gbps Line Card VSC874 Queue Manager 10 Gbps Line Card VSC874 Queue Manager FABRIC MODE DIAGRAM: 10 Gbps Line Cards VSC874 Queue Manager Switch Card SPI4.2 SPI4.2 SPI4.2 2.5 Gbps or 5 Gbps Line Card CSIX CSIX 10 Gbps Line Card VSC874 Queue Manager SPI4.2 SPI4.2 VSC872 Queue Manager VSC874 Queue Manager VSC882 VSC882 Switch Switch Fabric Fabric xN 2.5 Gbps or 5 Gbps Line Cards CSIX CSIX Switch Card VSC882 VSC882 Switch Switch Fabric Fabric VSC872 Queue Manager xN CSIX CSIX VSC872 Queue Manager For more information on Vitesse Products visit the Vitesse web site at www.vitesse.com or contact Vitesse Sales at (800) VITESSE or sales@vitesse.com Vitesse, ASIC-Friendly, FibreTimer, TimeStream and Snoop Loop are trademarks of Vitesse Semiconductor Corporation. All other trademarks or registered trademarks mentioned herein are the property of their respective holders. Vitesse Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or specifications to improve performance, reliability or manufacturability. All information in this document, including descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. 741 Calle Plano Camarillo, CA 93012, USA Tel: +1 805.388.3700 Fax: +1 805.987.5896 www.vitesse.com |
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