深圳市尚想信息技术有限公司

Highly integrated, non-blocking 9-port 10/100/1000 switch silicon that integrates: • Eight 10/100/1000 PHYs • One GMII/RGMII interface for an Inband Management Port (IMP) for glueless connection to a CPU/management entity • Serial EEPROM, MDC/MDIO, SPI, and Interrupt-to-CPU interfaces • Broadcom’s LoopDTech™ and CableChecker™ help reduce network downtime and minimize installation, maintenance, and support efforts • LoopDTech technology provides loop detection without running spanning tree protocol • CableChecker enables advanced cable diagnostics based on the Broadcom® Convergence Algorithm • Virtual Local-Area Network (VLAN) • IEEE 802.1Q-based VLAN with 4K entries • Port-based VLAN • VLAN double tagging (Q-in-Q) • Quality of Service (QoS) • Four selectable QoS per port; SP and WRR • Port, MAC, IEEE 802.1P, and IPv4/IPv6 DSCP based QoS • Performance • 9 KB jumbo frame support; wirespeed performance for all fame sizes • 4K MAC addresses with automatic learning and aging • 256 multicast group support • 196-KB packet buffer • Security • IEEE 802.1x support for secure user authentication • DoS prevention hardware • Traffic control and network resiliency • Storm control and port-based ingress/egress rate control • Spanning Tree support (Rapid Spanning Tree and Multiple Spanning Trees—up to 16) • IPv4 IGMP and IPv6 MLD snooping • IEEE 802.3x programmable per-port flow control and backpressure • Port mirroring, LLDP, LACP • Management • On-chip MIB counters to collect receive and transmit statistics for each port, hardware support for SNMP/MIBs and RMON • Technology and physical specifications • State-of-the-art 65 nm LP, 6-layer metal technology • 1.2V core and 3.3V I/O • Typical power consumption less than 3.9W