BCM5345 Broadcom Corporation, BCM5345 Datasheet
BCM5345
Manufacturer Part Number
BCM5345
Description
25 PORT GIGABIT ETHERNET SWITCHING PROCESSOR
Manufacturer
Broadcom Corporation
Datasheet
1.BCM5345.pdf
(2 pages)
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Supports 25 Gigabit Ethernet ports in wirespeed operation
Gigabit ports support RGMII interfaces to Standard GE
transceivers
Uplink port supports GMII interface
On-chip L2 search table supports 8K MAC addresses
Jumbo Frame support (9 Kbyte)
Supports 4K VLAN address and 802.1s Multiple Spanning
Tree protocol
Supports 802.1w Rapid Spanning Tree
Supports 802.1p and/or DiffServ with four priority queues
Supports 802.3ad link aggregation
Supports selected MIB groups in RMON
Supports up to 256 IP multicast groups
Full-duplex and half-duplex operation with IEEE 802.3x flow
control and backpressure
On-chip 512 Kbyte packet buffer memory with sophisticated
buffer management
Offers per-port rate control
Supports 802.1x access control protocol
Extremely low power consumption (4W)
Packaged in 676-pin BGA
25 PORT GIGABIT ETHERNET SWITCHING PROCESSOR
F E A T U R E S
25 Gigabit Ethernet Ports for SOHO and Subnetwork Applications
Cable/DSL/Wireless
Router
®
Printer
IP Phones
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BCM5345
Enables a new generation of lower-cost switches with Gigabit
Ethernet connectivity and much smaller form factors.
Complete switch on a chip integrates multilayer forwarding
and filtering logic and internal ARL tables and packet
buffering.
Filters and forwards traffic at full wirespeed on all 25 ports at
all layers of functionality. This equates to 50 Gbps of
bandwidth.
Provides the most cost-effective Gigabit Ethernet connectivity
to the desktop for all remote and branch office as well as
enterprise workgroup needs.
Supports 8K internal MAC addresses, so even large,
segmented networks can be supported.
Supports Quality of Service (QoS) for prioritization of
different traffic types.
Full support of VLANs allows separation of user groups and
minimizes superfluous traffic.
Jumbo frame support allows the device to be connected to
corporate server farms and networks while maintaining
maximum TCP/IP performance.
Supports the latest standards used in corporate networks for
discovery, management, access control, and traffic control.
On-chip MIB registers allow the collection and transmission of
statistics for each port and allow an upward migration path for
corporate users.
PCs
S U M M A R Y O F B E N E F I T S
PCs
Gigabit Ethernet Uplink
Copper or Fiber
Gigabit Ethernet Server
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BCM5345 Summary of contents
Page 1
... Extremely low power consumption (4W) • Packaged in 676-pin BGA 25 Gigabit Ethernet Ports for SOHO and Subnetwork Applications Cable/DSL/Wireless BCM5345 ® Enables a new generation of lower-cost switches with Gigabit • Ethernet connectivity and much smaller form factors. • Complete switch on a chip integrates multilayer forwarding and filtering logic and internal ARL tables and packet buffering ...
Page 2
... Manager G MAC G-Port G-Port The BCM5345 supports 25 Gigabit Ethernet ports in a single device with all ports in wirespeed operation. It offers 24 ports of RGMII (802.3ab, 1000BASE-T) interfaces with full-duplex operation at Gigabit speed and full-duplex or half-duplex operation at 10/100 Mbps speed (using 10BASE-T/100BASE-T). The BCM5345 also offers one uplink port with a GMII interface for light management or cascading purposes ...