ZL33020

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Zarlink’s ZL33020 Embedded Ethernet Switch offers integrated performance and QoS features that simplify the design of VoIP gateways, DSP modem pools and high-end traffic management cards employing NPU technology supporting next-generation IP services.The ZL33020 switch is a high-density, high-performance 24 FE + 4 GE port device with embedded 3.25 Mbits (480 Kbytes) internal memory for control databases and frame data buffer. The device supports multiple interface options, including SMII, RMII, GMII, TBI and MII, to provide designers with flexibility to easily match a range of Ethernet interfaces.With strict priority and/or weighted fair queuing transmission schedules and WRED dropping schemes, the device provides powerful QoS features for mission-critical applications. Additional integrated features, including port trunking/load sharing and flow control, allow carriers to better manage bandwidth and meet SLAs.

Features

• Up to 24 10/100 Mpbs auto-negotiated FE ports with RMII and SMII interface options
• Up to 4 10/100/1000 Mbps auto-negotiated GE ports with GMII, TBI and MII interface options
• Embedded 3.25 Mbits (480 Kbytes) internal memory for control databases and frame data buffer, supports jumbo frames up to 9 Kbytes
• Support for SLAs based on Ethernet Type, VLAN IEEE 802.1p,IP priority Type of Service (ToS, DSCP), L4 logical port numbers
• Flexible scheduling algorithms manage packets and prioritize queued traffic
• Industrial-grade qualification

Typical Applications

• Next-generation VoIP gateways
• DSP modem pools in wireless base stations
• High-end traffic management cards employing NPU technology

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