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| BCM5646 (R) STRATASWITCH IITM BCM5646 INTEGRATED MULTI-LAYER SWITCH FEATURES * * * * * * * * * * * * * * 24 10/100 Mb and 2 10/100/1000 Mb Ethernet ports High-speed 2.5-Gbps TurboGigTM stacking link 8.9 Mpps (line rate) switching 1-4 Classes of Service (COS); map to 802.1p priority IGMP snooping Integrated (8k) L2 table with auto learning Integrated (2k) L3 table Integrated (256 KB) data packet memory 64- or 128-bit-wide SDRAM support Spanning Tree support per VLAN DiffServ compliant Stacking architecture compatible with StrataSwitch ITM IEEE 802.1Q.D support Fast Filter Processor (FFP) - Examines up to the 80th byte of a packet - Supports TOS and DiffServ field modification - Bandwith regulation and monitoring per network flow - Network data flow tracking granular to 1 Mbps SUMMARY OF BENEFITS * 2.5-Gbps TurboGigTM stacking link defines the next generation of performance for 48-port switching devices * Optimized for 48FE+2GE and 24+2GE switches * New service offerings for ISPs - Pay for bandwidth consumption - Voice over IP - Police over-consumption of network resources - Line rate switching on all ports * Greater insight to network resource utilization through the advanced FFP features * More efficient deployment of existing network resources through insight provided by StrataSwitch IITM feature set * Line rate switching on all ports for: - Layer 2 switching - All FFP actions -- steering, forwarding, reclassifying * Low device power, 3W (<120 mW/ FE port), enables low-cost power supplies * High level of integration minimizes PCB layer count and routing issues * Flexible (128- or 64-bit) SDRAM interface supports low system cost of memory BCM5646 Application Diagram 2Mx32 SDRAM 2Mx32 SDRAM 2Mx32 SDRAM 2Mx32 SDRAM PCI Bus TurboGigTM StrataSwitch IITM BCM5646 StrataSwitch IITM BCM5646 8 8 8 1G 1G 8 8 8 BCM5238 BCM5238 BCM5238 BCM5421 BCM5421 BCM5238 BCM5238 BCM5238 OVERVIEW PCI External Data Packet Memory (64 or 128 bit SDRAM) I2C SMII / S3MII ARL TABLES CMIC EPIC3 L3 TABLES VLAN TABLES MMU ARL TABLES CPS BUS 32 Gbps channel ARL TABLES Internal Data Packet Memory EPIC1 L3 TABLES VLAN TABLES GPIC1 EPIC2 L3 TABLES VLAN TABLES GPIC2 SMII / S3MII GMII TurboGigTM SMII / S3MII TBI/GMII TurboGigTM The BCM5646, with a forwarding rate of 8.9 Mpps, defines the next generation of performance for 48-port Fast Ethernet switching solutions. Through its advanced ContentAwareTM feature set, the StrataSwitch IITM product family supports advanced applications and services, at wire speed, with non-blocking performance. The BCM5646 uses 60 million transistors and 1 MB of internal memory to integrate the functionality of large 48-port board designs into two chips. This level of integration allows the BCM5646-based switch to sustain line rate on all 48 Fast Ethernet and 2-Gigabit Ethernet ports for Layer 2 and all L2-L7 processing applications. The StrataSwitch IITM Fast Filter Processor (FFP) delivers line rate packet processing to support policy management, VoIP, and firewall applications. The data packet memory can be extended from 4 MB to 64 MB using commodity SDRAM in either a 128-bit-wide interface or a 64-bit-wide interface. The StrataSwitchTM family supports using the gigabit ports or TurboGigTM in a stacking link mode, giving you tremendous scalability configuring your switching system. The BCM5646 also provides a wide range of choices in levels of manageability and solution costs. For example, the BCM5646 provides a low-cost I2C interface for unmanaged applications, as well as a 33MHz PCI interface for higher management and network service requirements. The flow metering and monitoring of the StrataSwitch IITM enables many new applications and services. ISPs can benefit from the metering capabilities of the StrataSwitch IITM, eliminating unregulated bandwidth from over-consuming their network. Using the monitoring features of the FFP, IT managers can gain tremendous insight to the utilization of their current network resources and optimize those resources accordingly. 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 mentioned are the property of their respective owners. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2003 by BROADCOM CORPORATION. All rights reserved. 5646-PB03-R 10/23/03 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
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