共查询到20条相似文献，搜索用时 62 毫秒
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虚拟局域网(VLAN)可以将不同地理位置的网络用户划分为一个逻辑网段。论述了VLAN技术的工作原理,详细说明了VLAN的分类和在企业中的应用。 相似文献
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VLAN（Virtual Local Area Network,虚拟局域网）技术是一种崭新的网络技术,它能提高整个网络系统的灵活性、可靠性和安全性。文章主要论述了VLAN的定义、划分方法及应用价值等,并且结合实际,介绍了VLAN技术在合并高校图书馆网络建设中的实际应用。 相似文献
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随着网络技术的迅速发展,基于集线器的共享网络己被基于交换机的交换式网络所替代。虚拟局域网(VLAN)技术给局域网络引入了全新的概念,VLAN为解决网络站点的灵活配置和网络安全性等问题提供了良好的手段。 相似文献
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李淑清 《辽宁科技学院学报》2003,5(2):34-36,39
传统的局域网往往是一个平的交换型网络，每台没备都可以看到每个被传播的广播包，这样会导致大量无用的广播信息充斥整个网络，既缺乏安全性，又不能智能地对数据流进行负载均衡。针对这些问题，我们引入虚拟局城网(VLAN)的技术。本文概述了公司内局域网的状况和需求，介绍了Trunk的工作方式及VLAN划分的具体策略，并据此给出了公司局域网内实施VLAN的具体方法。 相似文献
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《实验室研究与探索》2020,(4):113-116
VLAN技术在交换式以太网和无线局域网组网中得到了广泛应用。在VLAN配置中,接口VLAN设置是重要内容之一。通过多个案例分析了PVID在VLAN配置中的重要作用和影响,并基于eNSP进行了模拟实验验证。分析得出不同VLAN间实现2层互通的关键在于PVID的设置。在CAPWAP组建无线局域网、智能变电站VLAN应用等场景中,利用了trunk链路类型上PVID特性,实现了特殊的接入功能和不同VLAN间的二层数据交换。融入计算机网络课程实验教学中将有助于学生更好地理解和掌握VLAN技术。 相似文献
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VLAN技术应用研究 总被引：5，自引：0，他引：5
随着网络的发展,网络设备不断增多,VLAN技术应用而生,该技术可以有效阻隔网络广播,控制广播风暴,提高网络的安全性.本文着重阐述VLAN的划分方法通常有四种方式、VLAN的关键技术是ISL标签VTP协议、VLAN通信中遇到的问题及解决方法、如何配置VLAN. 相似文献
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基于三层交换的VLAN技术与实现 总被引：2，自引：1，他引：2
陈秀兰 《甘肃广播电视大学学报》2005,15(2):50-53
随着网络规模的扩大，网络上大量的广播信息导致网络传输效率低下，为了解决这个问题，产生了虚拟局域网技术(VLAN)。VLAN是在交换网络的基础上构建可跨越不同网段、不同网络的端到端的逻辑网络，从而避免了园区网广播风暴的出现，提高交换式园区网的整体性能和安全性及可扩展性。章立足于具体应用提出了基于虚拟局域网技术和网络安全技术来构建一个合理安全的校园园区网的实现方案。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 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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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献