共查询到18条相似文献,搜索用时 187 毫秒
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在下一代无线网络中,用户可以任意地在不同的无线接入网之间切换。移动IP(MIP:Mobile IP)是当前无线IP网络中的移动性管理协议。但是移动IP协议难以为网络的服务质量(QoS:Qualicy ofService)提供保障。将多协议标记交换(MPLS:Multiprotocol Label Switching)和MIPv6结合的技术是解决这个问题的方案之一。本文介绍了MPLS和移动IP技术的基本原理,研究了基本移动MPLS和分层移动MPLS的实现方案,并基于HMIPv6 over MPLS网络结构介绍了一种为无线网络提供Qos支持的实现方案。 相似文献
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在介绍移动IP技术和MPLS技术特点的基础上,提出了移动IP与MPLS的融事方案。利用MPLS的标记交换代替传统的IP转发,能降低传输开,提高移动IP的可扩展性,同时为MPLS提供移动性支持。 相似文献
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本文提出了一种方案来综合移动IP和MPLS协议.MPLS技术是一项利用绑定在IP包中的标记,通过网络进行数据包转发的技术,它结合了第二层(数据链路层)交换的快速性和第三层(网络层)路由选择的可扩展性.是IP与ATM技术相结合的一种较好的解决方案.文章将MPLS技术引入移动IP中.充分利用了MPLS技术的优点.使得移动IP不再需要利用隧道来传递分组.相反,整个的转发过程都是在MPLS层上处理.MPLS交换远远快于传统的IP分组转发业务.大大减少了传输和分组处理时延并且扩展了移动IP的可用性. 相似文献
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对目前IP网络中较成熟的多协议标记交换(MPLS)和虚拟专用网络(VPN)技术作了简要介绍,结合陕西广电对MPLSVPN的应用实例,详细阐述了MPLSVPN的工作原理以及在广电网络中的组建思路,最后对陕西广电基于MPLSVPN技术的IP网络优势、功能和特点进行了说明。 相似文献
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利用多协议标记交换技术实现IP网的流量工程 总被引:1,自引:0,他引:1
文章概述了基于集成模式的新一代技术——多协议标记交换技术(MPLS)产生的原动力及其良好的应用前景,并通过对IP网络中流量工程技术发展阶段的分析,比较了各种流量工程技术的差异及优缺点,重点研究了基于MPLS技术实现IP网络中流量工程的工作原理,并以深训市IP城域网为例作了具体说明。 相似文献
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MPLS技术与MPLS VPN应用 总被引:1,自引:0,他引:1
MPLS为解决基于IP交换的网络中的一些问题提供了可能,很可能成为下一代Internet骨干网的交换技术,以MPLS为基础的MPLS VPN技术与原来的VPN技术相比也有明显优势,根据MPLS技术的优势分析探讨了MPLS VPN技术的应用原理。 相似文献
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多协议标记交换(MPLS)是实现宽带Internet的一种IP与ATM相结合的新兴网络技术。介绍了MPLS的网络构成、基本术语、工作过程,并通过将其与IntServ、DiffServ比较,描述了MPLS对于QoS的支持。 相似文献
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Services supported by asynchronous transfer mode account for the majority of data and Internet service revenues generated by carrier networks today. This is based on ATM's ability to support high availability services with quality of service. However, the influences of the Internet and a highly dynamic telecommunications market have raised demands for increased flexibility while controlling costs. Therefore, future carrier networks are likely to continue to be based on established technologies, such as ATM, as well as IP. In many cases, this is achieved through maintaining separate ATM and IP core networks, with the IP network supporting Internet services, while the ATM network continues to support guaranteed services such as private lines, broadband access, and video. In some cases, however, it can be advantageous for a carrier to transport segments of their ATM network over their IP network core; for example, to transport ATM traffic currently carried on leased facilities onto an IP network where the service provider owns the facilities. Developments in IP and MPLS-based traffic engineering and QoS may increase the ability of IP-based networks to support ATM services using MPLS. This article provides an overview of approaches enabling a network based on MPLS that naturally supports IP services to also support ATM services. The drivers and requirements for convergence on an IP/MPLS core network are presented, followed by an overview of the different approaches and associated challenges currently being debated in the standards bodies. 相似文献
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Mobility management in third-generation all-IP networks 总被引:3,自引:0,他引:3
It is now widely recognized that using IP as the foundation for next-generation mobile networks makes strong economic and technical sense, since it takes advantage of the ubiquitous installed IP infrastructure, capitalizes on the IETF standardization process, and benefits from both existing and emerging IP-related technologies and services. The large-scale support of data services and their integration with legacy services are the common objectives of all wireless efforts termed third generation (3G) and beyond. In these all-IP wireless networks, IP can be deployed in two modes: the transport mode and the native mode. As we show in this article, this duality in the use of IP has a significant impact on network efficiency and performance. It is the extended native use of IP in the terrestrial segment of a wireless operator's domain that more readily allows for building a converged network with multiple access technologies. We then discuss the different levels of mobility in the all-IP network. In particular, our focus is on micromobility, and on the issue of seamless localized mobility within the converged network. After reviewing the mobility schemes that have emerged in previous years, we describe a hierarchical mobility management scheme based on multiprotocol label switching (MPLS). The scheme employs an enhanced type of MPLS routers, called label edge mobility agents, and is scalable, efficient, and flexible. It directly inherits the noted capabilities of MPLS in terms of support of QoS, traffic engineering, advanced IP services, and fast restoration. This scheme does not use nodes that are specific to any given wireless technology, and is well suited for gradual deployment 相似文献