BCM8332 PRODUCT Brief (R) 80 GIGABIT B C M 8 3 3 2 SWITCH S U M M A R Y F E AT U R E S * Highly integrated, scalable switch fabric * Single-chip bandwidth of up to 80 Gbps * System scalable to 640 Gbps * 96-byte or 112-byte payloads fabric speedup and redundancy schemes * *Flexible Additional speedup to handle Cell Size + 1 byte case O F destination, while the fabric switch chip (BCM8332) schedules based on source. QoS can be set on a source/destination basis with no interference from other channels. Excellent Redundancy: All links that are used are * always active. N-1, N+1, and N2 redundancy modes for 16k Multicast Groups * *Support Full Multicast group ID carries through the fabric level Weighted Round Robin (WRR) or * Two WRR/strict priority scheduler * Support for 128 weights per output tap * Proven high-speed 3.125-Gbps SerDes Technology * 16-bit CPU interface @ up to 100 MHz are all supported--no software intervention is necessary. link failure detection--no software * Automatic intervention is necessary. Integrated SerDes provides a cost-effective and power* conscious solution. BCM8332 320 Gb Switching Solution FI0 BCM8320 BCM8332 CSIX S0 BCM8320 BCM8332 CSIX B E N E F I T S Guaranteed Class of Service through the system - * Fabric Interface chip (BCM8320) schedules based on * Link failure causes graceful reduction in speedup CSIX CHIP BCM8320 S3 CPU FI31 B C M 8 3 3 2 O V E R V I E W BCM8332 Block Diagram Multicast Table Cell Parser 32 SerDes 3.125 Gbps Bandwidth Allocation Queue Manager Egress Scheduler Flow Control 32 SerDes 3.125 Gbps CPU Interface 16 Bits 100 MHz The BCM83XX switch fabric chipset is highly integrated and scalable, switch fabric consisting of the BCM8320 Fabric Interface chip and the BCM8332 Switch chip. The BCM83XX switch fabric is ideal for applications such as Metro packet aggregation, storage area networks, cellular packet infrastructure and WAN core switching. The BCM8332 has 32 3.125-Gbps SerDes links to the BCM8320. The proven 3.125-Gbps integrated SerDes provides a cost- and power-effective solution while minimizing the number of backplane connections to the switch fabric. By using additional BCM8332 devices, the speedup of the BCM83XX Switch Fabric can be increased up to four times. Unlike standard crossbar architectures, the BCM83XX switch fabric does not need speedup to maintain line rate traffic. However, a selectable speedup is offered to handle Cell Size + 1 byte traffic cases as well as compensate for embedded system level headers. The BCM83XX switch fabric provides exceptional fault tolerance and redundancy including the options of N-1, N+1 and N2 redundancy modes. Any link failure causes a graceful degradation in speedup and allows continuous operation during a failure or switch board replacement. Link failure detection is done in hardware and does not require software intervention. The BCM83XX switch fabric can support 16,000 multicast groups and performs all replication in the switch fabric. The BCM83XX switch fabric allows guaranteed Class of Service through the system. Any input port can be guaranteed a traffic rate to any egress port regardless of the rest of the traffic in the system. Broadcom(R), the pulse logo, and Connecting everything(R) are trademarks of Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other trademarks are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2002 by BROADCOM CORPORATION. All rights reserved. 8332-PB02-R-6.13.02 Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com