BCM5691_ Просмотр технического описания (PDF) - Broadcom Corporation

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BCM5691_

A Scalable Approach to Gigabit Ethernet

Broadcom Corporation 

White Paper

06/27/02

■ BCM567x/BCM569x

The other primary StrataXGS component, the BCM5690, is a switch-on-a-chip. It supports twelve 1-Gbps ports and a one

HiGig (10-Gbps) interface. The BCM5690 can be used in a standalone fashion to build a fixed 12-port switch, or it can be

combined with other BCM5690s, BCM5670s, or StrataSwitch components to form different-sized configurations and to

achieve higher port densities. For example, eight BCM5690s can combine to scale from 12 to 96 GE ports.

Designers can link as many as 32 XGS chips (not including the switch fabric) for a maximum configuration of 384 GE ports

(ports using Broadcom components) and 64 (32 with BCM5673) 10-GE ports. One can also create a system containing 768

Fast Ethernet using X-StrataSwitch and Y-XGS components.

CPU/IO

10G

HiGigTM

FFP

ARL

Packet Buffer

MAC(s)

SRAM

ContentAwareTM

packet treatment

12 1-Gbps

ports

Figure 2: BCM5690 Block Diagram

Document 567x_569x-WP100-R

Broadcom Corporation

StrataXGS Product Family Page 5

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