BOARDCOM BCM5632E

BCM5632E
®
12 GIGABIT + 1 10-GIGABIT SWITCHING PROCESSOR
SUMMARY OF BENEFITS
FEATURES
• Supports 12 Gigabit ports and one 10-Gigabit uplink in
• Complete switch on a chip integrates 12 10/100/1000 and one
wirespeed operation
• Gigabit ports support TBI (1000BASE-X) or GMII
(1000BASE-T) interfaces
• Uplink supports XGMII interface for 10-Gigabit
•
• L2 search table supports 32K MAC addresses
• Jumbo Frame support (9 Kbyte)
• Supports full 4K VLAN addresses and 802.1s Multiple
•
Spanning Tree protocol
• Supports 802.1p and/or DiffServ with four priority queues
• Supports 802.3ad link aggregation control protocol (LACP)
•
• Supports selected MIB groups in RMON and SMON
• Supports up to 32K IP multicast groups with the option to cross
•
and marker protocol
VLAN boundaries
10G Ethernet Media Access Controllers (MACs) supporting
RMII, GMII, XGMII and TBI interfaces, including multilayer
forwarding and filtering logic and internal ARL tables and
packet buffering.
Supports 32K internal MAC addresses, which are shared by
all ports. Multicast MAC addresses, including IP multicast,
can also be stored and searched.
Supports Quality of Service (QoS). Each output port has four
priority queues and their assignment can be based on DiffServ
TOS field or the 802.1p priority field.
Filters and forwards traffic at full wirespeed on all 13 ports at
all layers of functionality. This equates to 44 Gbps of
bandwidth.
Provides a mechanism to bundle together up to 12 ports at the
same speed to form a port bundle or a trunk group,
establishing up to six trunk ports.
• Full-duplex and half-duplex operation with IEEE 802.3x flow
control and backpressure
• Built in 32-bit, 33-MHz PCI bus interface
• Flexible multiplexer modes
• Packaged in an 841-pin or a 785-pin BGA
BCM5632E Switching Solution
XAUI
BCM8011
XGMII
CPU Subsystem
System Bus
GMII/TBI
GMII/TBI
GMII/TBI
GMII/TBI
Fiber
XCVR
or
BCM5464
BCM5632E
PCI
GMII/TBI
Fiber XCVR
GMII/TBI
Fiber
XCVR
or
BCM5464
Fiber
XCVR
or
BCM5464
OVERVIEW
Output
Queueing
Shared Buffer
MIB
Counters
Parallel
to
Serial
To CPU
Rx FIFO
Serial
to
Parallel
Tx FIFO
Buffer
Manager
PCI
Interface
Table
Maintenance
Rx FIFO
Tx FIFO
Rx FIFO
Tx FIFO
Rx FIFO
Tx FIFO
10 G MAC
G MAC
G MAC
10 G-Port
G-Port
G-Port
The BCM5632E switching processor chip supports 12 Gigabit ports and
one 10-Gigabit uplink with all ports in wirespeed operation. The
BCM5632E is ideal for applications such as multi-Gigabit port switches
or aggregating multiple-Gigabit ports to a 10-Gigabit backplane.
For Gigabit ports, the BCM5632E supports PCS (802.3z, 1000BASE-X)
or GMII (802.3ab, 1000BASE-T) interfaces with full-duplex operation
at Gigabit speed, and full- or half-duplex operation at 10/100 Mbps speed
(using 1000BASE-T). For the uplink port, the BCM5632E supports
XGMII.
The BCM5632E supports 802.1Q VLAN tagging as an option (Qon).
The BCM5632E supports 802.1v VLAN Classification by Protocol.
There are four user-programmable protocols that can be set up per port
by the VLAN Classification EtherType and the VLAN Priority/TAG
registers.
The BCM5632E supports 32K internal MAC addresses which are shared
by all ports. Multicast MAC addresses including IP multicast can also be
stored and searched.
Port
Manager
L2 MAC
Table
VLAN
Table
The BCM5632E also supports 802.3ad port aggregation. The 12-Gigabit
ports can form up to six trunks, with a maximum of twelve ports in a
trunk. The distribution algorithm is user-selectable. The Link
Aggregation Control Protocol (LACP) frames are handled by the
accompanying CPU and the marker protocol is handled in hardware.
The BCM5632E can be initialized and configured by an EEPROM or a
CPU, which is also responsible for search table updates and management
functions. The CPU is a separate port to the device, containing its own
Tx FIFO and Rx FIFO. The device implements a 32-bit, 33-MHz
Peripheral Component Interconnect (PCI) for flexible CPU selection and
interface.
Other features include frame trapping and forwarding to the CPU, port
monitoring, and broadcast storm control to reduce broadcast traffic
through the switch. The BCM5632E also offers a flexible multiplexer
mode in which the L2 switching functionality can be turned on and off
on a per-port basis.
The BCM5632E also supports 4K VLAN addresses with the 802.1s
Multiple Spanning Tree option, and flexible and programmable ingress
and egress checking rules for VLAN processing.
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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
© 2004 by BROADCOM CORPORATION. All rights reserved.
5632E-PB01-R
07/08/04
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com