MVTX2804 Просмотр технического описания (PDF) - Zarlink Semiconductor Inc

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MVTX2804

8-Port 1000 Mbps Ethernet Distributed Switch

Zarlink Semiconductor Inc 

QoS Support

MVTX2804

Data Sheet

• Supports IEEE 802.1p/Q Quality of Service with

8 Priority

• Buffer Management: reserve buffers on per class

and per port basis

• Port-based Priority: VLAN Priority with Tagged

frame can be overwritten by the priority of PVID

• QoS features can be configured on a per port

basis

• Packet Filtering and Port Security

• Static addressing filtering for source and/or

destination MAC address

• Static learned MAC addresses will not be aged

out

• Secure mode per port: Prevent learning for port

in a secure mode

• Support per MAC per Port filtering

• Full Duplex Ethernet IEEE 802.3x Flow Control

• Provides Ethernet Multicast and Broadcast

Control

• 4 Port Trunking groups, 8 ports per group

(Trunking can be based on source MAC and/or

destination MAC and source port)

• LED signals provided by a serial or parallel

interface

• CPU interface supports 16/8-bit CPU bus in

managed mode and a synchronous Serial Interface

and I2C interface in unmanaged mode

• SNMP/RMON support with CPU

• Built-in MIB counter

• Spanning tree with CPU

• Multiple Spanning trees (Per Spanning Tree Per

VLAN)

• Hardware auto-negotiation through serial

management interface (MDIO) for Gigabit Ethernet

ports, supports 10/100/1000 Mbps

• BIST for internal and external SRAM-ZBT

• I2C EEPROM or synchronous serial port for

configuration

• Packaged in 596-pin BGA

Description

The MVTX2800AG family is a group of 8-port 1000 Mbps non-blocking Ethernet switch chips with on-chip address

memory. A single chip provides a maximum of eight 1000 Mbps ports and a dedicated CPU interface with a 16/8-bit

bus for managed and unmanaged switch applications. The VTX2800 family consists of the following four products:

• VTX2804 8 Gigabit ports Managed

• VTX2803 8 Gigabit ports Unmanaged

• VTX2802 4 Gigabit ports Managed

• VTX2801 4 Gigabit ports Unmanaged

The MVTX2804AG supports up to 64K MAC addresses to aggregate traffic from multiple wiring closet stacks. The

centralized shared-memory architecture allows a very high performance packet-forwarding rate of 11.904M packets

per second at full wire speed. The chip is optimized to provide a low-cost, high performance workgroup, and wiring

closet, layer 2 switching solution with 8 Gigabit Ethernet ports.

Two Frame Buffer Memory domains utilize cost effective, high-performance ZBT-SRAM with aggregated bandwidth

of 16Gbps to support full wire speed on all external ports simultaneously.

With Strict priority, Delay Bounded, and WRR transmission scheduling, plus WRED memory congestion scheme,

the chip provides powerful QoS functions for convergent network multimedia and mission-critical applications. The

chip provides 8 transmission priorities and 2 level drop precedence. Traffic is assigned its transmission priority and

dropping precedence based on the frame VLAN Tag priority or DS/TOS fields in IP packets.

IP multicast snooping provides up to 64k simultaneous IP Multicast groups. With 4K IEEE 802.1Q VLANs, the

MVTX2804AG provides the ability to logically group users to control multicast traffic.

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Zarlink Semiconductor Inc.

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