英语论文网

留学生硕士论文 英国论文 日语论文 澳洲论文 Turnitin剽窃检测 英语论文发表 留学中国 欧美文学特区 论文寄售中心 论文翻译中心 我要定制

Bussiness ManagementMBAstrategyHuman ResourceMarketingHospitalityE-commerceInternational Tradingproject managementmedia managementLogisticsFinanceAccountingadvertisingLawBusiness LawEducationEconomicsBusiness Reportbusiness planresearch proposal

英语论文题目英语教学英语论文商务英语英语论文格式商务英语翻译广告英语商务英语商务英语教学英语翻译论文英美文学英语语言学文化交流中西方文化差异英语论文范文英语论文开题报告初中英语教学英语论文文献综述英语论文参考文献

ResumeRecommendation LetterMotivation LetterPSapplication letterMBA essayBusiness Letteradmission letter Offer letter

澳大利亚论文英国论文加拿大论文芬兰论文瑞典论文澳洲论文新西兰论文法国论文香港论文挪威论文美国论文泰国论文马来西亚论文台湾论文新加坡论文荷兰论文南非论文西班牙论文爱尔兰论文

小学英语教学初中英语教学英语语法高中英语教学大学英语教学听力口语英语阅读英语词汇学英语素质教育英语教育毕业英语教学法

英语论文开题报告英语毕业论文写作指导英语论文写作笔记handbook英语论文提纲英语论文参考文献英语论文文献综述Research Proposal代写留学论文代写留学作业代写Essay论文英语摘要英语论文任务书英语论文格式专业名词turnitin抄袭检查

temcet听力雅思考试托福考试GMATGRE职称英语理工卫生职称英语综合职称英语职称英语

经贸英语论文题目旅游英语论文题目大学英语论文题目中学英语论文题目小学英语论文题目英语文学论文题目英语教学论文题目英语语言学论文题目委婉语论文题目商务英语论文题目最新英语论文题目英语翻译论文题目英语跨文化论文题目

日本文学日本语言学商务日语日本历史日本经济怎样写日语论文日语论文写作格式日语教学日本社会文化日语开题报告日语论文选题

职称英语理工完形填空历年试题模拟试题补全短文概括大意词汇指导阅读理解例题习题卫生职称英语词汇指导完形填空概括大意历年试题阅读理解补全短文模拟试题例题习题综合职称英语完形填空历年试题模拟试题例题习题词汇指导阅读理解补全短文概括大意

商务英语翻译论文广告英语商务英语商务英语教学

无忧论文网

联系方式

计算机网络设计Computer Networks Design [5]

论文作者:www.51lunwen.org论文属性:作业 Assignment登出时间:2014-04-21编辑:cinq点击率:13937

论文字数:论文编号:org201404191416306266语种:中文 Chinese地区:美国价格:免费论文

关键词:WAN LANnetwork routerNetworks Design

摘要:通过结构的布线方法,可以连接多个枢纽,形成一个大型的局域网,局域网最常用的混合拓扑结构。

sion detection
•Binary exponential backoff
The combination of techniques described above is known by the name Carrier Sense Multi-Access with Collision Detection.(CSMA/CD) Algorithm 3.1 summarizes CSMA/CD.3.4.2 CSMA/CA
To ensure that all stations share the transminssion media correctly, wireless LANs use a modified access protocol known as Carrier Sense Multiple Access With CollisionAvoidance (CSMA/CA). Instead of depending on all other computers to receive all transmissions, the CSMA/CA used with wireless LANs triggers a brief transmission from the intended receiver before transmitting a packet. The idea is that if both the sender and receiver transmit a message, all computers within range of either will know a packet transmission is beginning. Figure 3.1 illustrates the sequence.

Figure 3.1
In the figure, computer 3 sends a short message to announce that it is ready to transmit a packet to computer 2,and computer 2 responds by sending a short message announcing that it is ready to receive the packet. All compters in the range of computer 3 receive the initial announcement, and all computers in the range of computer 2 receive the response. As a result,even though it cannot receive the signal or sense a carrier, computer 1 knows that a packet transmission is taking palces
3.5 Distributed Route Computation
All packet switches must participate in distributed route computation. There are two general forms:
•Link-State Routing (LSR), which uses Dijkstra's algorithm
•Distance-Vector Routing (DVR), which uses another approach
3.5.1 Link-State Routing (LSR)
An LSR algorithm can adapt to hardware failures. If a link between packet switches fails, the attached packet switches will detect the failure and broadcast a status message that specifies the link is down. All packet seitches receive the broadcast, change their copy of the graph to reflect the change in the link's status, and recomputed shortest paths. Similarly, when a link becomes available again the packet switches connected to the link detect that it is working and start sending status messages that report its availability.

Algorithm 3.2

3.5.1 Distance Vector Routing (DVR)

Chapter 4 Internetworking with TCP/IP summary
The router is the basic building block of an internet. hardware component used to connect heterogeneous networks. Physically, routers resemble bridges ---- each router is a special-purpose computer dedicated to the task of interconnecting networks. The network treats a connection to a router the same as a connection to any other computer. A router can connect two LANs, a LAN and a WAN, or two WANs. Furthermore, when a router connects two networks in the same general category, the networks do not need to use the same technology. For example, a router can connect an Ethernet LAN to an FDDI LAN. Thus, each cloud represents an arbitrary network technology.
An organization seldom uses a single router to connect all of is networks. There are two reasons:
Because the CPU and memory in a router are used to process each packet, the processor in one router is insufficient to handle the traffic passing among an arbitrary number of networks.
Redundancy improve internet reliability. Protocol software continuously monitors internet connections, and instructs the routers to send traffic along alternative paths whe论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。
英国英国 澳大利亚澳大利亚 美国美国 加拿大加拿大 新西兰新西兰 新加坡新加坡 香港香港 日本日本 韩国韩国 法国法国 德国德国 爱尔兰爱尔兰 瑞士瑞士 荷兰荷兰 俄罗斯俄罗斯 西班牙西班牙 马来西亚马来西亚 南非南非