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| BCM5338M PRODUCT (R) Brief OF BENEFITS 9 - P O RT M A N A G E D 1 0 / 1 0 0 S W I T C H W I T H I E E E 8 0 2 . 1 / p / x / Q V L A N BCM5338M FEATURES SUMMARY * Sixth-generation L2+ Fast Ethernet switch on a chip integrates: * The BCM5338M (IEEE 802.3u compliant) * Eight transceivers * Cascades to 36 ports through a 3.2-Gbps expansion port * Stack to 48 ports with a 200-Mbps turbo MII port IEEE * queues802.1p QoS packet classification with 4 priority * IEEE 802.1Q based VLAN with 512 entries * Supports IEEE 802.1x EAPOL higher layer protocol * MAC based trunking with automatic link failover * Programmable per port storm control and rate control Port * port protection allows traffic aggregation to assigned * 4K MAC addresses with automatic learning and aging * Per port programmable MAC address locking * Programmable per port flow control and back pressure * Buffer Repeater mode * MII or reversed MII * MDC/MDIO and SPI interfaces * Port mirroring and IGMP layer2/3 snooping * MIB Autocast function * DTE (Power over Ethernet) * Hardware support for SNMP, RMON, and STP * Internal oscillator simplifies design and reduces cost * JTAG * 3.3V and 1.8V; typical power consumption: <2W BCM5328M * package pin-to-pin compatible 208-pin MQFP TM * Nine medium access controllers (IEEE 802.3x compliant) * One port can be assigned as a WAN port * 256-KB memory for packet buffer and control * Nonblocking switch fabric supports up to 24 ports Enables a new generation * with highest integration ofof affordable 10/100 switches enhanced L2+ features Uses field-proven industry-standard 10BASE-T * /100BASE-TX (100BASE-FX compatible) Fast * * * * * * * * * * * Ethernet transceivers-lowering overall system interoperability and reliability risks IEEE 802.1Q based VLAN and flexible priority queues mapped to selectable protocols such as IEEE 802.1p, Diffserv, ToS, and CoS enable the switch to be designed to a wide variety of applications for multimedia and data traffic Supports port based Extensible Authentication Protocol over LAN in 4 application modes; forwards only EAPOL frames to the CPU for authentication and allows secure mode traffic filtering Supports IEEE 802.1ad aggregation/port trunking Per port storm control of broadcast, multicast, and unlearned unicast traffic Flexible per port ingress/egress rate control with minimum resolution of 48 Kbps for better traffic management MAC address locking enhances security control MII port supports additional 100TX/FX Optional reversed MII port connects directly to an IEEE 802.3 compliant MAC Access to all internal registers through SPI or MDC/MDIO interfaces Low-cost management using the on-chip MIB registers allows the collection and transmission of basic management statistics for each port Switch management features: - Low-cost MIB Autocast function - Hardware support for Simple Network Management Protocol (SNMP), remote network monitoring (RMON), IEEE 802.1d spanning tree protocol, IEEE 802.1s multiple spanning tree (up to 32), and IEEE 802.1w rapid spanning tree protocol BROADCOM PROPRIETARY & CONFIDENTIAL BCM5338M OVERVIEW Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX Auto MDI/MDIX MII/Reversed MII Interface Inter-Chip Expansion CPU Interface 10/100 PHY MAC MAC MAC MAC MAC MAC MAC MAC 10/100 PHY MIB Registers ARL Table Switch Fabric 512 Tag IEEE 802.1Q VLAN Priority Map Register IEEE 802.1p DMA Interface 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY 10/100 PHY MAC 256-KB Packet Buffer Internal Osc.Circuit SPI/CPU Interface LED Interface LEDs The BCM5338M switch is a sixth-generation switch designed based on the field-proven industry-leaders, the BCM5328 and BCM5328M switches. This device combines all of the functions of a high-speed switch system--including packet buffers, PHY transceivers, media access controllers, address management, and a nonblocking switch fabric--into a single 0.18-micron CMOS device. It complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3x specifications, including the MAC control PAUSE frame and auto-negotiation subsections, providing compatibility with all industry-standard Ethernet and Fast Ethernet devices. The BCM5338M contains 8 full-duplex 10BASE-T/100BASETX Fast Ethernet transceivers, each of which performs all of the physical layer interface functions for 10BASE-T Ethernet on Category 3, 4, or 5 unshielded twisted-pair (UTP) cable and performs 100BASE-TX Fast Ethernet functions on Category 5 UTP cable. In addition to the robust 10/100 Ethernet DigiPHYTM, MIB AutocastTM, and management functions, the 8-port switch in the BCM5338M has a very rich feature set suitable for voice over IP and video and data traffic for multimedia applications. The 4-level priority queues mapped to IEEE 802.1p, Diffserv, ToS, and CoS, 512 entries IEEE 802.1Q VLAN, IEEE 802.1x Broadcom(R), the pulse logo, MIB AutocastTM, and Connecting everything(R) are trademarks of Broadcom Corporation and/or its subsidiaries in the United States and certain other countries. All other trademarks are the property of their respective owners. EAPOL protocol filtering, MAC based trunking with link failover, per-port bandwidth/rate control, MAC address locking, IGMP snooping at layer2/3, and port protection function allow system vendors to build advanced L2+ switch systems for the multitenant/multidweller unit (MDU/MTU) markets. The proprietary MIB Autocast function encapsulates the on-chip MIB statistics and sends them out automatically on a predefined port (or ports) at programmed intervals. The BCM5338M periodically transmits a legal Ethernet frame on a designated port. The frames can be intercepted by an external management probe or a dedicated network management application resident on any node within the network. This function requires only a small, low-cost microcontroller to initialize and configure the device. The BCM5338M provides an on-chip MIB statistics register to collect, receive, and transmit statistics for each port. Additionally it provides direct hardware support for the Ether-like MIB, Bridge MIB, MIB II (interfaces) and the first 4 groups of the RMON MIB. All 9 groups of RMON can be supported by using additional capabilities, such as port mirroring/snooping, together with an external microcontroller to process some MIB attributes. The MIB registers can be accessed through the serial management port by an external microcontroller. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2003 by BROADCOM CORPORATION. All rights reserved. 5338M-PB00-R 01.20.03 Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com BROADCOM PROPRIETARY & CONFIDENTIAL |
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