BCM56820
Brief
®
24 X 10-GBE + 4 X 1-GBE MULTILAYER ETHERNET SWITCH
SUMMARY OF BENEFITS
FEATURES
• Provides 24 10-Gigabit Ethernet (10-GbE) ports + four 1-GbE
• High level of integration and low power consumption enable
• Line rate full-duplex switching for 240+ Gbps.
• Intelligent Traffic Management with SAFC supports storage,
ports; each of the 10-GbE ports can also support 1 GbE, 2.5 GbE,
or 10 GbE, as well as HiGig™/HiGig2™ protocols.
• Built-in Layer 2 (L2), VLAN, and Layer 3 (L3) tables with 10
Quality of Service (QoS) queues per port.
• Multistage ingress and egress ContentAware™ Engine for deep
packet inspection and classification provides flexible ingress and
egress Access Control Lists (ACL), IPv4/v6 µflow, proprietary
headers, and multi-tuple lookups, all at line rate.
• IPv4 and IPv6 Virtual Routing with full support for L2/L3 tunnels
(Generic Routing Encapsulation [GRE], IPv4 over IPv6, IPv6 over
IPv4, Queue in Queue [QinQ], 802.1ah)
• Intelligent scheduler supports Strict Priority (SP), Weighted
Round Robin (WRR), and Deficit Round Robin (DRR) with builtin Weighted Random Early Discard (WRED) and Explicit
Congestion Notification (ECN) for congestion avoidance.
• IEEE 802.3™ Link Pause and Service Aware Flow Control™
high-performance, high-port density 10-GbE in the same form
factor as 1-GbE solutions.
HPC, video, voice, and data over unified 10-GbE fabric enabling
convergence in the data center.
• L o w p o w e r , s up e r i o r E nt e r p r i s e c l a s s f e a t ur e s , a nd
industry-leading 10-GbE port density empower next-generation
Enterprise aggregation and data center applications.
• Advanced load balancing, fast hardware failover and recovery
(< 10 μs), and ultralow latency (< 1 μs) provide high
performance, scalable, and reliable solutions for High
Performance Computing (HPC) environments.
• Robust integrated SerDes, on-chip packet buffer memory, and
PLLs accelerate system design and drastically reduce cost and
conserve board space.
• Sixth-generation HiGig/HiGig2 stacking technology facilitates
full-speed upgrade while maintaining compatibility with existing
deployed switches.
(SAFC) mechanism allows in-band backpressure per Class of
Service (CoS).
• Fully compatible Broadcom software API and Software
• Full support for tricolor marking and metering with policing on
Development Kit (SDK) enable software reuse from existing
deployed systems and faster time-to-market.
ingress and egress separately (RFC-2698 and MEF).
Multiport Multilayer Ethernet Switching
L2/VLAN Tables
Scheduling
Multistage Classifier
L3 Tables with VRF
Security
Advanced Buffer MMU
Flow Control
PCIe™/PCI
24 x 10-GbE + 4 x 1-GbE MACs with Integrated SerDes
OVERVIEW
Enterprise/Data Center Fixed/Stackable Applications
Line Rate 48 x 10-GbE + 16 x 1-GbE Fixed/Stackable
Line Rate 24 x 10-GbE +
4 x 1-GbE Fixes/Stackable
BCM56720
4 x HG[16]
per link
BCM56820
BCM56720
24 x 10-GbE + 4 x 1-GbE
BCM56821 BCM56821 BCM56821 BCM56821
Enterprise/Data Center
Modular Applications
48 x 10-GbE + 16 x 1-GbE
Line Card 1 of N
Access, ATCA, and Embedded Applications
8 x HG[16]
24 x 10-GbE
M x 10-GbE + 4 x 1-GbE
BCM56821
Switch Fabric Card B
Backplane
BCM56821
Switch
Fabric
Card A
M x 10-GbE + 4 x 1-GbE
BCM56820
BCM56820
Backplane
Switch
Fabric
Card B
10-GbE or HiGig
Traffic
Manager
BCM56720
Switch Fabric Card B
BCM56720
BCM56580
BCM56514
GPON
MAC
xDSL
MAC
GPON
PHY/SerDes
xDSL
PHYs
GPON
Line Card
xDSL
Line Card
BCM57710
N
Multicore
Processor
Compute
Blade
N x Line Cards
Network
Processor
Wireless
PHYs
3G Wireless
Base Station
Line Card
For further information, contact your local distributor or Broadcom Sales
Representative.
Broadcom®, the pulse logo, Connecting everything®, ContentAware™, Service Aware Flow
Control™, HiGig™, and HiGig2™ 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.
®
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2007 by BROADCOM CORPORATION. All rights reserved.
56820-PB00-R
03/23/07
Phone: 949-450-8700
Fax: 949-926-5203
E-mail: info@broadcom.com
Web: www.broadcom.com
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