东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (4): 378-381.DOI: -

• 论著 • 上一篇    下一篇

一种基于动态分级网关代理的移动IP缓存方案

薛建生;王光兴;   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院 辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-04-15 发布日期:2013-06-23
  • 通讯作者: Xue, J.-S.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2002AA784030)

Mobile IP buffer scheme based on dynamical hierarchical gateway agent

Xue, Jian-Sheng (1); Wang, Guang-Xing (1)   

  1. (1) School of Information Science and Engineering, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-04-15 Published:2013-06-23
  • Contact: Xue, J.-S.
  • About author:-
  • Supported by:
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摘要： 研究移动IP下平滑切换的缓存方案.首先提出了一种动态分级的网关代理的模型,分析了在这个模型下的缓存过程,研究了缓存区的分配与管理,并进行了仿真测试.理论和仿真分析表明,将缓存分为网关代理和局部代理两级,局部代理动态形成,使缓存任务得以分散.采用的单缓存十字链表的缓存结构,及相应的释放和大小设置策略,有效地解决了移动节点切换丢失数据和TCP性能下降及数据乱序问题.为更好地研究移动IP平滑切换问题提供了基础.

关键词: 移动IP, 平滑切换, 动态分级缓存, 网关代理, TCP性能

Abstract: Discusses the buffer scheme in the process of smooth handoff in mobile IP. A dynamical model of hierarchical gateway agent is proposed to analyze the buffer process, as well as the distribution and management of buffer area. A simulating test is thus carried out. The result and theoretical analysis reveal that dividing the buffer area into two levels, i.e., gateway agent area and local agent area which forms dynamically, will decentralize the buffer mission. Then, introduces a single buffer in combination with cross link list and corresponding strategy for release and proper setup into the scheme to solve effectively such problems as data loss when handing off mobile nodes, TCP performance degradation and disorderly data. The scheme also provides a foundation on which the smooth handoff in mobile IP can further be investigated.

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