共查询到20条相似文献，搜索用时 78 毫秒
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吴刚 《绵阳师范学院学报》2011,30(8):83-89
该文主要介绍了Cisco的HSRP(热备份路由协议)产生的历史背景及其工作原理。HSRP和MHSRP(多元热备份路由协议)能够实现路由器热备份,端口追踪,网络负载共享。网络设计工程师在设计IP网络的过程中灵活地使用HSRP和MHSRP能够设计出高可靠、高性价比的网络解决方案。 相似文献
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TCP网络传输"粘包"问题研究 总被引：1，自引：0，他引：1
周少华 《湖北成人教育学院学报》2003,9(3):33-35
当前在网络传输应用中，广泛采用的是TCP／IP通信协议及其标准的Socket应用开发编程接口(API)。TCP／IP传输层有两上并列的协议：TCP和UDP。其中TCP(Transport Control Protocol，传输控制协议)是面向连接的，提供高可靠性服务。UDP(User Datagram Protocol，用户数据报协议)是无连接的，提供高效率服务。在实际工程应用中，对可靠性和效率的选择取决于应用的环境和需求。—般情况下，普通数据的网络传输采用高效率的UDP，重要数据的网络传输 相似文献
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浅析一些路由协议的漏洞及防范 总被引：1，自引：0，他引：1
齐庆功 《辽宁科技学院学报》2005,7(2):5-7
主要讨论了有关对网络底层协议的攻击和防范攻击的方法,特别是关于路由和路由协议的漏洞,如Routing Information Protocol(RIP,路由信息协议),Border Gateway Protocol(边缘网关协议)等. 相似文献
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为满足日益增长的实时多媒体业务对网络QoS(Quality of Service)的需求,提出1种适应QoS多播的路由协议CMPS(Constrained Multi-Path Search Protocol),通过对CMPS协议的设计、编码和仿真实验,得到它的性能:具有构建多播树成功率高、网络负载较小的特点. 相似文献
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《实验室研究与探索》2016,(7):102-107
为提高网络可靠性,在多出口校园网边界考虑网络冗余和负载分担设计。以常见校园网为例,基于GNS3仿真软件,介绍了结合SLA(Service Level Agreement)和VRRP(Virtual Router Redundancy Protocol)提高多出口网络边界可靠性的具体方案。实验中模拟了网络故障,分析了网络故障切换以及负载分担的优化。 相似文献
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PPP协议(Point-to-Point Protocol)是目前广域网上应用最广泛的协议之一，PPP是为在同等单元之间传输数据包而设计的链路层协议。本文通过对PPP协议进行剖析，分析了PPP的基本原理，并简单介绍了PPP的连接过程。 相似文献
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移动互联网上基于多信道分配与切换的路由协议MASR(Multi-Channel Assignment and Switching Based Routing),是以节点为单位进行信道的分配与切换,并结合移动互联网本身的结构特性,以依赖路由器为基础的分层、分段路由协议.大量模拟实验表明,MASR与MCRP(Multi-Channel Routing Protocol)及MCP-LB(Multi-Channel Protocol With Load Balancing)等方法相比具有更好的网络性能,能显著提高整个网络的吞吐量. 相似文献
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一、网络协议及网络操作系统的选择和安装1.网络协议选择目前较为普遍使用的网络协议有三种:一是TCP/IP(Transmission Control Protocol/Internet Protocol)协议,它具有较强的异种机互连功能,几乎能适应任何基础通讯技术,加上它简单、高效,已成为事实上的网络标准传输协议(Internet就是采用此协 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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Rajesh Kanoi 《海外英语》2007,(1):52
Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer. 相似文献
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正A One day a pig went to the stable(马棚)to see his good friend,an oldhorse,and was going to stay there forthenight.Night came and it was time forsleep.The pig went into the straw heap(稻草堆)and lay comfortably.A longtime passed,but the horse was stillstanding there and did not move.Thepig asked the horse why he did not go tosleep."Standing like this is the begin-ning ofsleeping,"answered the horse. 相似文献
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《今日中学生》2014,(9)
正1.Any fool can count the seeds in an apple.Only God can count all the apples in one seed.2.Happy families are all alike;every unhappy family is unhappy in its own way.3.Memories are the key not to the past,but to the future.4.Sometimes in the dark you see what you want to see.5.There is a great difference between 相似文献
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《重庆大学学报(英文版)》2014,(2)
正Scope and Policy The Journal of Chongqing University-English Edition(JCQU-E)is a peerreviewed journal publishing research articles in multiple disciplines of science and technology,covering civil and environmental engineering,chemical engineering,biotechnology,mechanical and electrical engineering,computer and data processing,mining,metallurgy,materials science,and interdisciplines thereof. 相似文献