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下一代网络生存性的总体考虑 总被引:7,自引:0,他引:7
网络的生存性民为网络、特别是下一代网络设计中需要关注的重要内容,随着网络规模和容量的日益扩大,网络的生存性显得越来越重苛。本文介绍网络生存性的概念与意义,讲述网络保护和恢复的总体考虑,并以SDH传送网为例简要介绍电层的保护、恢复方法和设计考虑。最后讨论网络的多层生存性问题。 相似文献
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Internet的用户规模增长及其多媒体实时业务的涌现对于IP网络的可生存性提出新的要求。本文主要讨论保证IP网络可生存性的保护与快速恢复技术。 相似文献
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Internet的用户规模增长及其多媒体实时业务的涌现对于IP网络的可生存性提出新的要求。本主要讨论保证IP网络可生存性的保护与快速恢复技术。 相似文献
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自动交换光网络的生存性及保护恢复 总被引:4,自引:0,他引:4
自动交换光网络(ASON)是当前光传输领域的研究热点,其中保护恢复策略将为增强网络生存性奠定新的基石。本首先介绍了ASON中的保护和恢复机制以及它们各自的特点。并在此基础上讨论它们与传统SDH网络保护恢复机制比较所表现出的几点优势,最后,针对ASON的传送平面和控制平面的保护恢复提出主要的技术要求,这些要求将有助于保证ASON在生存性方面优势的真正实现。 相似文献
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探讨了IP over DWDM生存性的机制,研究了各个网络层的恢复特点以及不同层间相互作用对生存性的影响,明确了多层网络生存性的优点,从而得出光层能够提供最快的保护,较高的层能够提供智能恢复。最后提出了一种在光层的自动保护倒换的结构,这种保护能够优先考虑来自较高层的告警信息,使IP over DWDM网络做到智能化的快速恢复,为IP over DWDM网络的研究和建设提供了一定基础。 相似文献
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介绍了光传送网的功能分层结构、网络的生存性及安全性能要求,确定了光传送网的管理功能,着重分析了OADM/OXC系统光监控信道技术。 相似文献
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ZHAOJi-jun JIYue-feng XUDa-xiong 《半导体光子学与技术》2003,9(3):141-147
In last decade,due to that the popularity of the internet, data--central traffic kept growing, some emerging networking requirements have been posed on the today‘s telecommunication networks,especially in the area of network survivability. Obviously, as a key networking problem, network reliability will be more and more important. The integration of different technologies such as ATM, SDH, and WDM in multilayer transport networks raises many questions regarding the coordination of the individual network layers.This problem is referred as multilayer network survivability. The integrated multilayer network survivability is investingated as well as the representation of an interworking strategy between different single layer survivability schemes in IP via generalized multiprotocol label switching over ootical netwnrk 相似文献
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In last decade,due to that the popularity of the internet, data-central traffic kept growing,some emerging networking requirements have been posed on the todays telecommunication networks,especially in the area of network survivability.Obviously,as a key networking problem,network reliability will be more and more important.The integration of different technologies such as ATM,SDH,and WDM in multilayer transport networks raises many questions regarding the coordination of the individual network layers.This problem is referred as multilayer network survivability.The integrated multilayer network survivability is investingated as well as the representation of an interworking strategy between different single layer survivability schemes in IP via generalized multi-protocol label switching over optical network. 相似文献
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For the abundant bandwidth, a malfunction in optical networks causes a great deal of loss to traffic, and hence the survivability
of optical networks must be considered. Two technologies, protection and restoration, are used in general, and the former
is investigated in this paper. The existing protection strategies mainly cope with a single link failure or a double-link
failure in an optical network and not consider what causes these failures. In this paper, we study the reasons which lead
to the network malfunctions, and pose a new concept named regional demolishment. A protection algorithm named Ellipse-underlay
algorithm is also proposed. We compare the performance of the Ellipse-underlay algorithm to the Node-disjoint algorithm. Simulation
results show that the Ellipse-underlay algorithm is more effective to the survivability of traffic than the Node-disjoint
algorithm. 相似文献
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为了有效地提高宽带光纤传送网的生存性,必须以一种综合的方式将各层的恢复技术的纳入到一个统一的自愈策略中去。本文在宽带光纤传送网分层模型的基础上,提出了一种综合应用串行启动和并行启动的层间综合自愈策略。 相似文献
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多域光网络的生存性作为衡量网络性能优劣的关键指标,与实际网络应用的关系最为密切,是当前迫切需要解决的关键问题;聚焦高速化、多业务化驱动的多域光网络环境下的生存性技术.基于光网络的多业务、分布式控制的特性,分析了多域光网络生存性机制的研究现状及面临的挑战;给出了一种针对多域光网络生存性问题的分类方法;结合多域光网络对生存性的需求,对相关关键技术进行了归类和研究,并指明了进一步研究的方向和重点. 相似文献