参数资料
型号: ZL50418/GKC
厂商: ZARLINK SEMICONDUCTOR INC
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件页数: 68/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
2
Zarlink Semiconductor Inc.
QoS Support
4 transmission priorities for Fast Ethernet ports and 8 transmission classes for Gigabit ports
Per-queue weighted random early discard (WRED) with 2 drop precedence levels
Scheduling using delay bounded (DB), strict priority (SP), and Weighted Fair Queuing (WFQ) disciplines
User controlled WRED thresholds
Buffer management: per-class, shared, and per-port buffer reservations
Classification based on:
Port-based priority: priority in a frame can be overwritten by the priority of port
VLAN Priority field in VLAN tagged frame (IEEE 802.1p)
DS/TOS field in IP packet
UDP/TCP logical ports: 8 hard-wired and 8 programmable ports, including one programmable range
The drop precedence of the above classifications is programmable
Supports IEEE 802.3ad link aggregation
3 port trunking groups
one group for the 2 Gigabit ports
two groups for 10/100 ports, with up to 4 ports per group
Load sharing among trunked ports can be based on:
- Source and/or destination MAC address
- Source port (Gigabit ports only)
Port Mirroring
supports 2 mirroring ports in managed mode
supports a dedicated mirroring port in unmanaged mode
Built-in MIB statistics counters
Full Duplex Ethernet IEEE 802.3x Flow Control
Backpressure flow control for Half Duplex ports
Full set of LED signals provided by a serial interface, or 6 LED signals dedicated to Gigabit port status only
(without serial interface)
Recognizes Simple Bandwidth Management (SBM) and Resource Reservation Protocol (RSVP) packets
and forwards to CPU
Built-in reset logic triggered by system malfunction
Built-in self test (BIST) for internal and external SRAM
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