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ET4000 Single-Chip 28 x 1 Gbits/s Layer 2+ Ethernet Switch
Overview
The 28-port ET4000 is part of the Agere Systems ET4K family of gigabit Ethernet switch chip sets. These cost-effective, true switch-on-chip solutions have been developed to help simplify your design and production efforts for GbE switching systems. The Agere Systems ET4000 is a complete switch solution that provides 28 gigabit Ethernet (GbE) ports (IEEE(R) compliant 802.3z 10/100/1000 Mbits/s Ethernet MACs) in a single chip. Twenty-four of the MACs connect to external PHYs via 6-pin LVDS SGMII interfaces, four can be connected to external fiber PHYs via SerDes interfaces. The ET4000 is offered in a 525-pin FCBGA package and is fabricated in advanced 0.13 m CMOS process technology. The complete solution is designed to address the power and size constraints in switching applications. A seamless interface and common API for use with the Agere ET1081 TruePHYTM multiport PHY will help reduce costs and ensure performance.
The ET4000 is a highly integrated and fully featured Layer 2 Ethernet bridge with integrated MACs, packet buffers, and address tables. Its high levels of integration can help significantly reduce design costs, reduce power and space requirements, and increase reliability. The ET4000 offers proven TCP/IP network security features such as L2/L3/L4 ACL as well as QoS capabilities. It offers advanced service recognition and queuing to support the ability to create and manage new QoSbased services. These comprehensive QoS features and the ET4000 wire speed performance enables enterprise desktop aggregation switching applications. A reference system design kit is available for the ET4000, for more information please contact your Agere Systems sales representative.
* Twenty-eight 10/100/1000 Mbits/s Ethernet ports (24 SGMII interfaces to GbE copper PHYs, up to four SerDes interfaces to GbE fiber ports). * Aggregate 42 Mpackets/s switching capacity (wire speed operation). * 32-bit, 66 MHz PCI processor interface. * Two MDIO interfaces. * Integrated packet buffer memory. * Integrated address table memories. * Full IEEE 802.1D bridging. * Extensive VLAN support.
Features
Features (continued)
* * * * * * L2/L3/L4 classification for access control list (ACL) and quality of service (QoS). Supporting IPv4 and IPv6 Advanced traffic management functions. Link aggregation and mirroring. Advanced 0.13 m CMOS technology. 525-pin FCBGA package.
Applications
The Agere Systems ET4000 chip set solutions are used to create competitive Layer 2+ gigabit Ethernet desktop switches. They can be used for a 24-port port gigabit Ethernet switch in standalone configuration, or with the addition of four fiber ports in standalone configuration, or in high-density gigabit Ethernet fabric switches.
System Diagram
24 Port Switch - 24 10/100/1000M Copper Ports - 4 GbE SFP Ports
SerDes PCI 1G Fiber 1G Fiber 1G Fiber 1G Fiber
ET4000
24xSGMII
ET1081 ET1081 ET1081
Processor
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For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc., Lehigh Valley Central Campus, Room 10A-301C, 1110 American Parkway NE, Allentown, PA 18109-9138 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA: CHINA: (86) 21-54614688 (Shanghai), (86) 755-25881122 (Shenzhen) JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 6778-8833, TAIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 1344 296 400
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. Agere, Agere Systems, the Agere logo, and TruePHY are trademarks of Agere Systems Inc. Copyright (c) 2004 Agere Systems Inc. All Rights Reserved June 2004 BC04-023GSWC

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