BCM5645 Broadcom Corporation, BCM5645 Datasheet
BCM5645
Manufacturer Part Number
BCM5645
Description
INTEGRATED MULTI-LAYER SWITCH
Manufacturer
Broadcom Corporation
Datasheet
1.BCM5645.pdf
(2 pages)
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STRATASWITCH II™ BCM5645 INTEGRATED MULTI-LAYER SWITCH
24 10/100 Mb and 2 10/100/1000 Mb Ethernet ports
High-speed 2.5-Gbps TurboGig
8.9 Mpps (line rate) switching
Default route table with 16 entries
Integrated 255 entry IP multicast table
IP multicast support (IGMP snooping capable)
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)
- Examines up to the 80th byte of a packet
- Supports TOS and DiffServ field modification
- Bandwith regulation and monitoring per network flow
- Network data flow tracking granular to 1 Mbps
F E A T U R E S
PCI
Bus
TM
®
stacking link
BCM5238
StrataSwitch II
SDRAM
2Mx32
BCM5645
8
BCM5645 Application Diagram
BCM5238
SDRAM
8
2Mx32
TM
BCM5238
TM
8
BCM5421
TurboGig
1G
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2.5-Gbps TurboGig
of performance for 48-port switching devices
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 II
Line rate switching on all ports for:
- Layer 2 switching
- Layer 3 switching
- All FFP actions — steering, forwarding, reclassifying
Low power of device, 3W (<120 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
BCM5421
1G
BCM5645
TM
S U M M A R Y O F B E N E F I T S
BCM5238
StrataSwitch II
SDRAM
2Mx32
BCM5645
8
BCM5238
TM
stacking link defines the next generation
SDRAM
8
2Mx32
BCM5238
TM
8
TM
feature set
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BCM5645 Summary of contents
Page 1
... STRATASWITCH II™ BCM5645 INTEGRATED MULTI-LAYER SWITCH • 24 10/100 Mb and 2 10/100/1000 Mb Ethernet ports • High-speed 2.5-Gbps TurboGig • 8.9 Mpps (line rate) switching • Default route table with 16 entries • Integrated 255 entry IP multicast table • IP multicast support (IGMP snooping capable) • ...
Page 2
... Internal Data EPIC1 Packet Memory SMII / S3MII 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 product family supports advanced applications and services, at wire speed, with non-blocking performance ...