zl50411 Zarlink Semiconductor, zl50411 Datasheet - Page 3
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zl50411
Manufacturer Part Number
zl50411
Description
Managed 9-port Fast Ethernet Switch With Private Vlan
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50411.pdf
(143 pages)
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Manufacturer:
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Network Management Support
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Description
The ZL50411 is a low density, low cost, high performance, non-blocking Ethernet switch chip. A single chip provides
8 ports at 10/100 Mbps, 1 uplink port at 10/100 Mbps, and a CPU interface for managed, lightly managed and
unmanaged switch applications. The chip supports up to 4 K MAC addresses and up to 4 K tagged-based Virtual
LANs (VLANs). It also supports the Private VLAN Edge feature, allowing the ability to set up protected ports in a
tagged-based VLAN system.
With strict priority and/or WFQ transmission scheduling and WRED dropping schemes, the ZL50411 provides
powerful QoS functions for various multimedia and mission-critical applications. The chip provides 2 transmission
priorities (4 priorities for uplink port) and 2 levels of dropping precedence. Each packet is assigned a transmission
priority and dropping precedence based on the VLAN priority field in a VLAN tagged frame, or the DS/TOS field, or
the UDP/TCP logical port fields in IP packets. The ZL50411 recognizes a total of 16 UDP/TCP logical ports, 8
hard-wired and 8 programmable (including one programmable range).
The ZL50411 provides the ability to monitor a link, detect a simple link failure, and provide notification of the failure
to the CPU. The CPU can then failover that link to an alternate link.
The ZL50411 supports up to 8 groups of port trunking/load sharing. Each group can contain up to 8 ports. Port
trunking/load sharing can be used to group ports between interlinked switches to increase the effective network
bandwidth.
In half-duplex mode, all ports support backpressure flow control, to minimize the risk of losing data during long
activity bursts. In full-duplex mode, IEEE 802.3x flow control is provided. The ZL50411 also supports a per-system
option to enable flow control for best effort frames, even on QoS-enabled ports.
Statistical information for SNMP and the Remote Monitoring Management Information Base (RMON MIB) are
collected independently for all ports. Access to these statistical counters/registers is provided via the CPU interface.
SNMP Management frames can be received and transmitted via the CPU interface, creating a complete network
management solution.
The ZL50411 is fabricated using 0.18 micron technology. The ZL50411 is packaged in a 208-pin Ball Grid Array
package.
Supports IEEE 802.3ad link aggregation
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Traffic Mirroring
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Supports module hot swap on all ports
Built-in RMON MIB counters
Eight (8) groups of up to 8 ports per group
Supports load sharing among trunk ports based on:
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Physical port based (RMII enabled ports only)
Source or destination MAC address based
MAC address pair based
Source port
Source and/or destination MAC address
Zarlink Semiconductor Inc.
ZL50411
3
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