ETC BCM5626

BCM5626
PRODUCT
Brief
StrataSwitch II™ BCM5626 INTEGRATED MULTI-LAYER SWITCH
B C M 5 6 2 6
S U M M A R Y
F E AT U R E S
• 24 10/100 Mb and 2 10/100/1000 Mb Ethernet ports
• High-speed 2.5-Gbps TurboGig 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
• IEEE 802.1Q.D support
• Fast Filter Processor (FFP)
• 2.5-Gbps TurboGig
TM
• 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
I
• Line rate switching on all ports for:
• Layer 2 switching
• All FFP actions — steering, forwarding, reclassifying
• Examines up to the 80th byte of a packet
• Supports TOS and DiffServ field modification
• Bandwidth regulation and monitoring per network flow
• Network data flow tracking granular to 1 Mbps
• Low power of device, 5W (<250 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
BCM5626 Application Diagram
2Mx32
SDRAM
2Mx32
SDRAM
2Mx32
SDRAM
2Mx32
SDRAM
TurboGigTM
PCI
Bus
StrataSwitch IITM
BCM5626
8
BCM5238
8
BCM5238
B E N E F I T S
stacking link defines the next
generation of performance for 48-port switching
devices
TM
TM
O F
StrataSwitch IITM
BCM5626
8
1G
BCM5238
BCM5421
1G
BCM5421
8
BCM5238
8
BCM5238
8
BCM5238
B C M 5 6 2 6
O V E R V I E W
BCM5626 Block Diagram
PCI
SMII / S3MII
I 2C
External Data
Packet Memory
(64- or 128-bit SDRAM)
ARL
TABLES
CMIC
L3
TABLES
EPIC3
VLAN
TABLES
CPS BUS
32-Gbps channel
MMU
ARL
TABLES
ARL
TABLES
Internal Data
Packet Memory
EPIC1
L3
TABLES
EPIC2
GPIC1
VLAN
TABLES
SMII / S3MII
L3
TABLES
GPIC2
VLAN
TABLES
GMII
TurboGigTM
The BCM5626, with a forwarding rate of 8.9 Mpps, defines the
next generation of performance for 48-port Fast Ethernet
switching solutions. Through its advanced ContentAware™
feature set, the StrataSwitch IITM product family supports
advanced applications and services, at wire speed, with nonblocking performance.
The BCM5626 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
BCM5626-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.
SMII / S3MII
TBI/GMII
TurboGigTM
The StrataSwitchTM family supports using the gigabit ports or
TurboGigTM in a stacking link mode, giving you tremendous
scalability configuring your switching system.
The BCM5626 also provides a wide range of choices in levels of
manageability and solution costs. For example, the BCM5626
provides a low-cost I2C interface for unmanaged applications, as
well as a 33/50-MHz 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.
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.
Broadcom®, the pulse logo®, StrataSwitchTM, StrataSwitch IITM, TurboGigTM, ContentAware™ and
Connecting EverythingTM 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.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reserved.
5626-PB01-R-4.24.02
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com