以太网

This article uses 32 bits ARM microprocessor as the core to build up an imbedded application system which makes signal detection, Ethernet communication and autodial function integrated. Based on this system this article builds up an Ethernet-based distributed embedded monitor system for the geographically dispersed telecommunication rooms for RMON(which stands for Remote Monitoring)and unified management.

本文以32位ARM微处理器为核心，构建了一种集信号检测、以太网通信和自动派障于一体的嵌入式应用系统，并以此为基础构建了基于以太网的分布式嵌入式监控系统，用于对地域上分散的电信机房进行远程监控，统一管理。

The 2000 series Ethernet Switch was designed by ZTE corporation up to date, which was located in the core networking. And it also could be used in WAN and MAN.In practical networking, there is "Broadcast storm(the network is blocked by too many broadcast packet)"as a result of ethernet ring, which seriously effect the network cap- ability.

2000系列以太网交换机是中兴通讯股份有限公司最新研发的、具备路由功能的以太网交换机，定位于企业网的核心层和汇聚层，能够应用于运营商网络，作为电信城域网的汇聚交换机、接入交换机来使用。

Now ETHERNET is used to control unit and set up network control system with ETHERNET appearance and rapid development.

随着INTERNET概念的出现和以太网的迅速发展，人们开始利用现有的以太网络对设备进行控制，建立了网络控制系统。

Ethernet is already one of the most popular technologys in Wide Band domain with the advantages of the low cost and conveniency.

以太网接入以其灵活、低成本等特点，已经成为当今宽带接入技术的主流，以太网安全也成为人们研究的焦点。

A method for carrying out transparent transmission service of elastic packet ring includes setting station table and interface table in RPR station of EPR, finalizing top ring retransmitting process based on MPLS countermark by matching MPLS countermark in service frame to station table to obtain MAC address of correlated EPR station according to topological retransmission table of station, finalizing bottom ring process based on MPLS countermark by matching MPLS countermark in service frame to interface table to obtain correlated local Ethernet interface number.

本发明公开了一种弹性分组环透传业务的方法及装置，方法包括：在每一个弹性分组环RPR站点中，建立一张具有MPLS标签与弹性分组环站点关联关系的站点表以及一张具有MPLS标签与本地以太网接口关联关系的接口表；通过将业务帧中的MPLS标签与所述站点表进行匹配获得关联的弹性分组环站点的MAC地址，并根据站点的拓扑转发表，完成基于MPLS标签的上环转发处理；通过将业务帧中的MPLS标签与所述接口表进行匹配获得关联的本地以太网接口号，完成基于MPLS标签的下环处理。

This paper brings forward the ether technology of filtration and store - forward switching based on FPGA, this technology can deal with 20 channels gigabit Ethernet datum at line speed.

国防科技大学机电工程与自动化学院，长沙 410073摘要：提出了基于FPGA的多路千兆以太网信号的筛选与存储转发交换技术，该技术可以线速处理20路千兆以太网数据。

10GbE employs an interface known as XAUI (pronounced "Zowie"), with "X" denoting the Roman numeral for 10, implying 10 Gbps, and "AUI" derived from Ethernet Attachment Unit Interface.

万兆以太网采用一种被称为 XAUI的接口，其中X指罗马数字10，即10Gbps。"AUI"来源于以太网AUI。

The focus that switched Ethernet is applied in the networked control system is ability of real-time.For this,a new analytic tool:network calculus is used to determinately analyze the special performances of the real-time data via a switched Ethernet.

交换式以太网在网络控制系统中的应用关键问题是实时能力，为此采用一种新型实时性能分析工具——网络演算，对交换式以太网实时能力进行确定性的分析和研究。

The lack of determinism and real-time property of Ethernet protocol has greatly hindered its application in industrial control system.

以太网协议由于缺乏确定性和实时性，阻碍了工业以太网在实际应用中的推广。

Ethernet data stream with HTML format and DVB-C data stream with MPEG2 format is inputted in form of ASI and SPI, and send it into FIFO via 74F675A. 5416 packs and encrypts and transfers to DVB-C and Ethernet by time diplex mode. Thereby, data bus access is realized.

HTML格式以太网数据流和MPEG2格式DVB-C数据流以ASI和SPI形式输入，经74F675A串并转换进入FIFO.5416进行打包和加密并以时分复用方式传输DVB-C和以太网数据，实现数据总线访问。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。