BCM5645 Datasheet, PDF (2/2 Pages) Broadcom Corporation. – STRATASWITCH II™ BCM5645 INTEGRATED MULTI-LAYER SWITCH

OVERVIEW
External Data
Packet Memory
(64- or 128-bit SDRAM)
PCI I²C
CMIC
MMU
Internal Data
Packet Memory
EPIC1
SMII / S3MII
ARL
TABLES
L3
TABLES
VLAN
TABLES
SMII / S3MII
ARL
TABLES
EPIC3
L3
TABLES
CPS BUS
32-Gbps channel
VLAN
TABLES
ARL
TABLES
GPIC1
EPIC2
L3
TABLES
GPIC2
VLAN
TABLES
GMII
TurboGig^TM
SMII / S3MII
TBI/GMII
TurboGig^TM
The BCM5645, 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^TM
product family supports advanced applications and services, at wire
speed, with non-blocking performance.
The BCM5645 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 BCM5645-based switch to
sustain line rate on all 48 Fast Ethernet and 2-Gigabit Ethernet ports for
Layer 2, and Layer 3 switching 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 StrataSwitch^TM family supports using the gigabit ports or
TurboGig^TM in a stacking link mode, giving you tremendous scalability
configuring your switching system.
The BCM5645 also provides a wide range of choices in levels of
manageability and solution costs. For example, the BCM5645 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 flow metering and monitoring of the StrataSwitch II^TM enables many
new applications and services. ISPs can benefit from the metering
capabilities of the StrataSwitch II^TM, 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.
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BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2003 by BROADCOM CORPORATION. All rights reserved.
5645-PB05-R
10/22/03
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