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基于池的PMIPv6移动接入网关容错方案 被引量:2
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作者 张瀚文 许智君 +2 位作者 张玉军 李忠诚 周继华 《软件学报》 EI CSCD 北大核心 2011年第10期2385-2400,共16页
代理移动IPv6(PMIPv6)是IETF提出的基于网络的区域移动管理协议,依赖于区域移动锚点(local mobility anchor,简称LMA)和移动接入网关(mobile access gateway,简称MAG)两类移动管理实体实现系统功能.针对PMIPv6网络中的MAG可靠性问题,提... 代理移动IPv6(PMIPv6)是IETF提出的基于网络的区域移动管理协议,依赖于区域移动锚点(local mobility anchor,简称LMA)和移动接入网关(mobile access gateway,简称MAG)两类移动管理实体实现系统功能.针对PMIPv6网络中的MAG可靠性问题,提出一种基于池的移动接入网关容错方案(MAG fault-tolerant method basedon pool,简称MAGFT).方案引入MAG池解决PMIPv6系统中MAG服务不可替代问题,实现对移动节点(mobile node,简称MN)透明的MAG容错.针对PMIPv6系统所部署下层网络的不同,MAGFT分别采用无重叠区部署和有重叠区部署两种模式在PMIPv6域内构建多个MAG池,使得域内各MAG至少归属于一个池.当某MAG失效时,它所在池内的某一有效MAG将快速接管其服务.理论分析和仿真实验结果表明,MAGFT可将容错时间控制在35ms~340ms.当容错时间在120ms以下时,MAGFT可完全避免MAG失效对MN的TCP应用造成的影响;最差情况下,对分别处于WLAN、3G和卫星网络中的MN而言,MAGFT也可在MAG失效发生后的1.1s,1.6s或2.8s内恢复其TCP应用吞吐量.对于UDP应用,MAGFT可在MAG失效发生后2s内将MN的收包率恢复至其稳定值.同时,方案引入的容错开销小,当系统处于较饱和的稳定服务状态时,容错信令开销相比系统基本信令是可忽略的.MAGFT的引入对MN接入延时略有增加,但增值控制在10ms以下. 展开更多
关键词 代理移动IPV6 移动接入网关 容错 可靠性
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A Novel Approach to Reduce Handover Latency in Proxy Mobile IPv6 Based on Multi-Homing
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作者 Indumathi Lakshmi Krishnan Shalini Punithavathani Davidson 《Circuits and Systems》 2016年第9期2530-2541,共12页
Proxy Mobile IPv6 (PMIPv6) is a network based mobility management protocol. It is proposed by the Internet Engineering Task Force. In PMIPv6 the Mobile Node (MN) need not participate in signalling of mobility. PMIPv6 ... Proxy Mobile IPv6 (PMIPv6) is a network based mobility management protocol. It is proposed by the Internet Engineering Task Force. In PMIPv6 the Mobile Node (MN) need not participate in signalling of mobility. PMIPv6 is a layer 3 protocol. In this paper the issue of layer 3 mobility is resolved by the Enhanced Open Flow Technique (EOFT). Generally, the open flow protocol makes functions on network devices, routers, switches. Open flow controller act as server for network devices to make communication between them. In the proposed EOFT-PMIPv6, the control signalling and mobility is managed by EOFT controller. In PMIPv6, the Mobility Access gateway (MAG) has the responsibility of the control signalling. But in the EOFT-PMIPv6, the responsibility of MAG is done by the EOFT-Controller. In the proposed technique, the mobility management function is isolated from PMIPv6 mechanisms. These isolated mechanisms are combined in the EOFT-Con- troller. This EOFT-Controller satisfies the responsibility of the mechanisms which are separated from PMIPv6. The eminent mobile environment must provide the efficient multi-homing protocols. The proposed technique overcomes the problem of multihoming in PMIPv6. The EOFT-Controller takeover the responsibility of Layer 3 functions. Also, the proposed technique combines with Modified Mobility Access Gateway (M_MAG) and it handles the handover session dynamically. This paper provides the extended architecture of EOFT-PMIPv6 and provide unbeaten handover scheme for multi-homing. The result is provided by systematic analysis based on comparison with PMIPv6 and EOFT-PMIPv6 is obtained. 展开更多
关键词 Binding Catch Entry (BCE) Logical Link Identifier (LL-ID) mobility access gateway (MAG) PMIPV6 Open Flow MULTI-HOMING
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