EPON故障管理系统功能需求与设计分析

故障管理对于一个网络管理系统来说非常重要,故障管理实现的好坏直接影响网络管理系统的性能,探讨一种基于事件的EPON网络故障管理系统的功能需求与设计分析。     

基于SNMP的EPON网管系统的设计与实现

以太无源光网络(EPON)即将成为宽带接入的最有效的通信方法,为EPON系统提供一个稳定、有效的网络管理系统显得尤为重要。简单网络管理协议(SNMP)是当今应用最广泛的网络管理协议。本文分析了基于SNMP的EPON网管结构,按配置管理、性能管理、故障管理、安全管理等功能设计了EPON网管系统,并分别在管理站和代理站上予以实现。     

通过EPON设备接入VPN网络

电信运营商通过EPON设备对ADSL网络进行改造,如何通过EPON设备原VPN网络同时提升网络价值,通过EPON设备接入VPN改造的实例,对这一问题做了有益的探索。     

EPON系统中VLAN的设计与实现

EPON(以太无源光网)作为一种新的接入技术,利用VLAN(虚拟局域网)可以满足用户对多种业务的需求,同时也可优化网络性能和满足同一EPON系统多运营商接入的需求。本文首先介绍了EPON中交换芯片对VLAN的支持,接着从用户空间、内核空间和芯片驱动三个层面描述了VLAN的设计,从而实现VLAN的配置与动态管理。     

以太无源光网络技术的应用探讨

EPON是一种单纤双向新型网络接入技术,它的出现及时的满足了传统网络所不能实现的高宽带与新业务现代网络信息的发展需求。本文通过介绍以太无源光网络的特点,并对EPON技术在通信网络的应用进行探讨。     

EPON技术在烟草企业视频监控系统中的应用与研究

以太网无源光网络（EPON）是一种新型的光纤接入技术,其采用点到多点的拓扑结构、无源光传输方式,在以太网基础上承载多业务。EPON网络相对其他光纤接入网来说具有性价较高、技术较为成熟的优势,能够为终端用户提供可靠的数据、语音和视频业务。本文在描述了EPON网络结构和原理的基础上,第一次探讨了将EPON技术应用于烟草工业企业视频监控系统中的实践,并提出了一种新的系统结构,为烟草工业企业的安防系统以及生产监控系统建设提出新的思路和建议。     

论光纤有线电视综合信息网设计中的关键问题

本文对有线电视网络宽带接入方式进行了探讨,分析了有线电视网采用EPON技术进行宽带接入,制定了有线电视综合业务数据网的总体设计思想。然后详细研究了在光纤有线电视网络基础上基于EPON技术的宽带接入网的结构设计,对EPON系统的固有可靠性和使用可靠性进行了分析。     

浅谈有线双向网中EPON技术在终端建设中应用

重点研究了如何将EPON这种基于以太网的无源光网络技术应用到有线电视HFC网络改造中,以最低的代价实现传统HFC网络的双向改造,同时对应用中存在的问题也提出了解决办法,为当前及今后我国有线电视网络双向建设开辟了一条网络发展新路,即基于EPON的综合业务光纤接入网道路.     

移动通信网络基站建设管理研究

随着移动通信网络的迅速膨胀和发展,基站建设越来越多,随之而来的是基站性能的监控与管理问题,本论文探讨了基站建设管理问题.首先简要分析介绍了基站建设的基本流程,在此基础上重点设计研究了基站性能监控管理系统,从系统架构和功能两个角度完成了基站管理系统的构建,并详细分析探讨了管理系统的功能实现及系统通信机制的实现,对于进一步提高通信网络基站建设及其功能性能实时监控和管理水平具有一定借鉴和指导意义.     

杭州西港新界小区光纤接入系统及其实现

本文对杭州西港新界小区在EPON光纤接入网中存在的综合布线、安装调试及网络维护等问题进行了分析，并结合上述问题对光纤接入网进行了设计，最后解决了光纤接入网中存在的问题，证明了EPON光纤接入这一新技术不仅实用性强也为发展无源光网络的组建与升级带来了更大的方便。     

Brown＇s Blossom in Britain-China

The overall strategic relationship between U.K. and China is ＂better than ever＂, China- Britain relations have maintained good momentum, with increased high-level exchanges and the reinforcement of strategic mutual trust, with more room for growth in the future.     

Challenge and Opportunity Go Hand in Hand——What Global Economic Agitation Brings to the China's Economy?

Domino effects of the global finance agitation As the origin of the subprime crisis,US financial institutions lost USS45 billion last year,accounted for over half of the total US,EU & Japan loss.Since January 15th,Chtigroup released its financial statement of the 4th quarter,showing a net deficit of USS9.83 billion,which marked the hisoric high of its quarterly deficit.     

Sinosteel：Extraordinary Moves in Industry Chess

Among the Fortune 500 firms,more and more images from China emerge out.On the 2008 list,Sinosteel Corporation,a landmark group of China industries quietly squeezes into the candidate line.As the largest steel service ＆ trade enterprise,its sales reached at RMB 111.24 billion,with a year-on-year increase of 83.03 percent,and the profit grew by 180.03 percent.On the Sinosteel 2008 Work Meeting,the president Huang Tianwen uttered,＂In the coming year,we will work for US$20 billion sales,and look forward to getting a position in Fortune 500 firms for ourselves.＂     

Walk Through Unusual Five Years—— An Exhibitor＇s Canton Fair Course

When the 103rd Canton Fair is approaching, an old friend of Canton Fair, Li Ying from Jiangsu prov-ince recollected his past five years＇ experiences to the grand trade meeting. Each year is special, with some unforgettable memories colored by the year.     

Jean-Pierre Duprieu： Willing to Be A Legate of Sino-French Business

Estaing, former French president, Valery Giscard d＇Estaing attended Sino-French Economic Seminar held in Shanghai in early April and said that the world center has shifted from the west to the east with many European and US companies entering into Asia, and China has the ability to play an important role in the world stage. Estaing, naming himself＂French Confucian＂, then said in Chinese that a cook-group includes 10 people in ancient Chinese soldier system and the cook is in charge of cooking for them. And people who belong to the same cook are actually ＂Partners＂.     

China''''s Stock Market Wave

The annual meeting of the World Economy Forum was held in Davos,a little town in Switzerland,on January 23rd to the 27th this year,with the theme"the Power fo Collaborative Innovation",over 2500 celebrates from ture political and cconomic circles of more than 80 countries and challengred logether to talk about the future of the global economy in 2008,A Forum for the problems and challenges that face whole world,some of the keywords which drew attention during the event were:the U.S.subprime mortgage crisis,soaring energy prices,the economic slowdown in the U.S.ermerging economic bodies,authority funds and the general unpredictable nature of the global economy.     

Trade Promotion from Neighborhood

If you are considering to trade with companies in Japan or expanding your .business to Japan, we are ready to help from the very beginning.＂ You will find this greeting at the first sight on the Chinese website of Japan External Trade Organization （JETRO）. JETRO has committed itself in delivering highly efficient and quality services to meet the demand of internal and external customs including Japanese companies, hence winning a good reputation in the international trade arena. In recent years, with its priority in advancing business cooperation in South and East Asia, JETRO has made great achievement in promoting trade between China and Japan. Therefore, China＇s Foreign Trade interviewed Mr. Yoichi Maine, Deputy Director General of JETRO BEIJING.     

Auto Parts Market Potential Coming into Surface

Looking at the increasingly fierce competition in the world auto market. global automobile manufacturing industry, taking Europe, the U.S. and Japan as representatives, is gradually forming a new type of relationship, mutual cooperation between whole vehicle and parts manufacturers. We can clearly see that auto parts manufacturers have become independent from the whole vehicle manufacturing companies, which means that the former structure of auto industry has greatly changed, and a new relationship,     

Domino Effect on Electricity and Coal Prices

In the middle of last December, the key purchase contracts for coal used in power generation in 2008 were signed, reflecting a demand for more than 1.085 billion tons. It is important to note that the country＇s five biggest power producers, China Huaneng Group, China Guodian Corporation, China Power Investment Corporation, China Huadian Corporation and China Datang Corporation, had settled on the prices on their purchase contracts, and they are expected to consume 290 million tons of coal for generating electricity,     

China's Auto Industry Steps Forward

Last year,the volume of China's auto trade reached US$66.878 bil- lion,of which imports accounted for US$25.982 billion,a year-on- year increase of 24.45 percent;while ex- ports totaled US$40.896 billion,growing by 45.31 percent.The China Association of Automobile Manufacturers(CAAM) predicts that the number of autos sold in 2008 will break the 1 million barrier for the first time in history,representing an increase of about 20 percent.