Product Summary

The BCM56720B0KFSBG is a Scalable Approach to Gigabit Ethernet Switch. The two primary chip components of the Broadcom StrataXGS Gigabit Ethernet switch architecture are the StrataXGS BCM5670 and the StrataXGS BCM5690. The BCM56720B0KFSBG is a high-speed (160-Gbps) switch fabric, also called a backplane or interconnect, that has eight 10-Gbps ports. A smaller version, the BCM5671, is an 80-Gbps switch fabric with four 10-Gbps ports. The 10-Gbps ports on the BCM56720B0KFSBG is the building blocks for interconnecting line cards to a switch fabric. A 10-slot chassis, for example, can be designed with eight line cards and two management cards.

Features

BCM56720B0KFSBG features: (1)Layer 2 switching with associated 802.1Q Virtual LAN (VLAN) support and 802.1p traffic classification capabilities; (2)Layer 3 routing; (3)Quality of service (QoS) for prioritizing certain traffic, such as latency-sensitive voice over IP (VoIP) packets; (4)Layer 2 and 3 multicasting for bandwidth-efficient point-to-multipoint transmissions; (5)Very high levels of resiliency and switch uptime to ensure network reliability; (6)A high-throughput backplane that enables wire-speed performance; (7)Scalability-including high port density in a small amount of board space-so end customers can grow their networks as needed at a reasonable cost per port; (8)Security, such as per-port MAC address filtering, firewall filtering, and intrusion detection capabilities; (9)The ability to integrate features such as QoS, trunking, and port mirroring (for diagnostics) across interconnected modules to ensure consistent performance and resiliency, end to end.

Diagrams

BCM56720B0KFSBG block diagram