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BCM5651
(R)
StrataXGSTM INTEGRATED MULTI-LAYER SWITCH
FEATURES * * * * * * *
24 x 10/100 Mbits, 4 x 10/100/1000 Mbps Ethernet ports 9.5 Mpps (line rate) aggregate L2 switching capacity Integrated L2 table (16K) with auto learning/aging Double 802.1Q (Q in Q) VLAN stacking MPLS tunnel/VC packet labeling for L2 VPN Scalable Fast/Gigabit Ethernet in a system
SUMMARY OF BENEFITS * High-density 10/100/1000 Mbps L2 Ethernet switches * 9.5-Mpps, full-duplex, line-rate performance across all
interfaces
* New service offerings for ISPs
* Metro Ethernet-L2 VLAN (Q-in-Q) and MPLS VPN * Voice Over IP (VOIP)-guaranteed low latency prioritization * Advanced traffic management-metering, shaping, and scheduling (SP, RR, WRR, WFQ), down to 64-Kbps flows * ContentAware classification, tagging, and remapping provides maximum security and flexibility * Broadcom switch API compatibility enables software reuse and faster time-to-market
Eight Classes of Service (COS) with WRED and WRR, DSCP/ 802.1p priority * 256 spanning trees (802.1s and 802.1w) * 32 link aggregation trunk groups and mirroring
* * * *
Up to 256 L2 multicast groups and hardware packet replication Flow control (802.3x) and HOL blocking prevention 64 data bit DDR SDRAM with up to 32 MB of buffer memory ContentAwareTM network processing per port * Line-rate, multi-field packet classification * Support for 802.1p, TOS/DiffServ, rate limiting, policing, and priority/VLAN (single or double) tagging and remapping
APPLICATIONS * High-density multi-layer scalable enterprise 10/100/
1000 Mbps L2 Ethernet switches
* Multi-Tenant Unit (MTU) Metro Ethernet VPN multi-layer
switches * Service provider Metro Ethernet VPN edge switches
Application Diagram
CPU
BCM5651
FLASH SDRAM Memory Memory
FLASH FLASH Memory Memory
FLASH SDRAM Memory Memory
BCM BCM 5248 5238
BCM BCM 5248 5238
BCM BCM 5248 5238
BCM BCM 5464 64 54
2 x 6 port RJ-45
2 x 6 port RJ-45 2 x 6 port RJ -45
RJ-45 RJ-45 RJ-45 RJ-45
10/100 Mbps
10/100/1000
OVERVIEW Block Diagram
CPU I/O
FFP
MAC(s)
ARL
Advanced MMU
DDR SDRAM interface for non-blocking performance
The BCM5651 network switch is the most advanced multi-layer, singlechip solution for high density 24 x 10/100 Mbps ports and 4 x 10/100/ 1000 Mbps Ethernet uplinks. With an aggregate line rate of 9.5 Mpps, the BCM5651 offers hardware switching on L2 traffic. Filtering, policing, and priority tagging can be performed in real time with no impact on forwarding performance. Supporting the latest Metro Ethernet L2 VPN applications, the BCM5651 offers double 802.1Q VLAN stacking, also known as Q-inQ. This allows enterprise and service provider networks to breakthrough the 4K VLAN tag limitation. Further, BCM5651 also provides MPLS tunnel/VC packet labeling for standards-based IETF L2 VPN via MPLS. With eight CoS queues via SP, RR, WFQ, and WRR distribution, the BCM5651 enables full range of service applications such as low latency VoIP and real-time video, as well as mission critical data. Optimized for the most demanding network switching requirements, the BCM5651 integrates a 16K entry auto-learning/aging MAC. Advanced
Ethernet features such as multiple and rapid spanning tree (802.1s and 802.1w), flow control (802.3x), prioritization (802.1p), and 9K jumbo frame switching are fully integrated. All L2 traffic is switched at line rate. For load balancing as well as redundancy purposes, link aggregation is incorporated. Up to 32 trunk groups (eight links per group) can be assigned for link aggregation (802.3ad). Providing line-rate packet filtering and classification, the advanced Fast Filter Processor (FFP) offers ContentAware network processing per port. The BCM5651 supports TOS/DiffServ, rate limiting, policing, shaping, metering, scheduling, priority tagging, and remapping down to flows as small as 64 Kbps, making it ideal for committed bandwidth usage and firewall applications. Designed for increasing multicast applications, the BCM5651 switches all L2 multicast packet sizes at line rate. For L2 multicast, up to 256 multicast addresses are supported. Multicast traffic can also be managed by three port filtering modes to control the distribution behavior.
Broadcom(R), the pulse logo, StrataXGSTM, ContentAwareTM, 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) 2004 by BROADCOM CORPORATION. All rights reserved. 5651-PB00-R 04/05/04
Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com

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