White Paper

06/27/02

Broa d c om Co rp o r a t i o n

Document

567x_569x-WP100-R

StrataXGS Product Family

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.

Figure 2: BCM5690 Block Diagram

10G

Packet Buffer

FFP

MAC(s)

ARL

SRAM

CPU/IO

12 1-Gbps

ports

ContentAware

TM

packet treatment