BCM5646_03 [BOARDCOM]
STRATASWITCH II BCM5646 INTEGRATED MULTI-LAYER SWITCH; STRATASWITCH II BCM5646集成多层交换机
| 型号： | BCM5646_03 |
| 厂家： | 
Broadcom Corporation. |
| 描述： | STRATASWITCH II BCM5646 INTEGRATED MULTI-LAYER SWITCH |
| 文件： | 总2页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BCM5646
®
STRATASWITCH II™ BCM5646 INTEGRATED MULTI-LAYER SWITCH
S U M M A R Y O F B E N E F I T S
F E A T U R E S
TM
• 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 I
• IEEE 802.1Q.D support
• Fast Filter Processor (FFP)
2.5-Gbps TurboGig 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
TM
•
•
-
-
-
-
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 II feature set
TM
TM
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
• Low device power, 3W (<120 mW/ FE port), enables low-cost
Supports TOS and DiffServ field modification
power supplies
Bandwith regulation and monitoring per network flow
Network data flow tracking granular to 1 Mbps
• 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
2Mx32
2Mx32
2Mx32
SDRAM
SDRAM
SDRAM
SDRAM
TurboGigTM
PCI
Bus
TM
TM
StrataSwitch II
BCM5646
StrataSwitch II
BCM5646
8
8
8
1G
1G
8
8
8
BCM5238
BCM5238
BCM5238 BCM5421
BCM5421 BCM5238
BCM5238
BCM5238
O V E R V I E W
SMII / S3MII
PCI
I2C
External Data
Packet Memory
ARL
TABLES
(64 or 128 bit SDRAM)
L3
TABLES
EPIC3
CMIC
VLAN
TABLES
CPS BUS
32 Gbps channel
MMU
ARL
ARL
TABLES
TABLES
L3
TABLES
L3
TABLES
Internal Data
Packet Memory
EPIC1
GPIC1
EPIC2
GPIC2
VLAN
VLAN
TABLES
TABLES
SMII / S3MII
GMII
SMII / S3MII
TBI/GMII
TurboGigTM
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 ContentAware™ feature set, the StrataSwitch II™
product family supports advanced applications and services, at wire
speed, with non-blocking performance.
The StrataSwitch™ family supports using the gigabit ports or
TurboGig™ 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 33-
MHz PCI interface for higher management and network service
requirements.
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 flow metering and monitoring of the StrataSwitch II™ enables many
new applications and services. ISPs can benefit from the metering
capabilities of the StrataSwitch II™, 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 StrataSwitch II™ 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.
Broadcom®, the pulse logo, and Connecting everything® 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
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
© 2003 by BROADCOM CORPORATION. All rights reserved.
5646-PB03-R
10/23/03
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