基于主-备关系的PMIPv6区域移动锚点容错方案

发布时间：2018-04-12 12:11

本文选题：代理移动IPv + 区域移动锚点　；参考：《计算机学报》2015年03期

【摘要】：代理移动IPv6(PMIPv6)是IETF提出的基于网络的区域移动管理协议.在PMIPv6系统中,区域移动锚点(LMA)是维持移动节点(Mobile Node,MN)在PMIPv6域内不同接入链路间移动过程中可达性的关键实体.文中针对PMIPv6中LMA的单点故障问题,提出一种基于主-备关系的区域移动锚点容错方案(LMAFT).方案在PMIPv6域内部署多LMA,并建立一一对应的主-备关系,通过LMA间自组织状态管理实现容错.方案设计了双向有效性检测机制,实现主、备LMA间快速的失效检测;LMA服务迁移机制支持失效实体全部服务迁移和过载实体部分服务迁移,实现容错的同时支持多LMA负载均衡.理论分析和仿真实验结果表明,LMAFT方案可将LAM容错时间控制在50ms~350ms.当容错时间控制在100ms以下时,可完全避免LMA失效对移动节点MN的TCP应用造成的影响;最差情况下,也可在LMA失效发生后的1s~2.7s内快速恢复相关MN的TCP应用吞吐量.对于UDP应用,LMAFT方案可在LMA失效发生后2s内恢复相关MN的收包率.
[Abstract]:Agent Mobile IPv6 (IP IP v6) is a network-based regional mobility management protocol proposed by IETF.In PMIPv6 systems, regional mobile anchor (LMA) is the key entity to maintain the reachability of mobile nodes mobile NodeMNs in the PMIPv6 domain during the movement between different access links.In this paper, aiming at the single point fault of LMA in PMIPv6, a fault tolerant scheme of regional moving anchor points based on master-standby relationship is proposed.The scheme deploys multiple LMAs in the PMIPv6 domain and establishes a one-to-one corresponding master-standby relationship. Fault tolerance is realized by self-organizing state management between LMA.A bidirectional validity detection mechanism is designed to implement the fast service migration mechanism between master and standby LMA to support all service migration of failure entities and partial service migration of overloaded entities, and to achieve fault tolerance and multiple LMA load balancing.The theoretical analysis and simulation results show that the LAM fault-tolerant time can be controlled at 50ms / 350msby the LMAFT scheme.When the fault-tolerant time is controlled below 100ms, the influence of LMA failure on the TCP application of mobile node MN can be avoided completely, and in the worst case, the TCP application throughput of MN can be recovered quickly in the 1s~2.7s after LMA failure occurs.For UDP, LMAFT can recover the packet rate of MN within 2 seconds after the failure of LMA.
【作者单位】：中国科学院计算技术研究所;中国科学院大学;
【基金】：国家“九七三”重点基础研究发展规划项目基金(2012CB315804) 国家自然科学基金(61100177,61173133,61133015) 国家“八六三”高技术研究发展计划项目基金(2011AA010703) 国家科技重大专项项目(2011ZX03002-005-02,2012ZX03002002)资助~~
【分类号】：TN929.5

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