MobCast: Overlay Architecture for Seamless IP Mobility using Scalable Anycast Proxies

Christopher P. Lee, Keshav Attrey, Carlos Caballero, N. Feamster, M. Mihail, J. Copeland
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引用次数: 4

Abstract

We propose a routing overlay system, MobCast, for simple and efficient routing to mobile hosts. Mobcast nodes advertise the same address space at each proxy location, and each mobile host is assigned a "universal" IP address from this address space, so packets sent to a mobile host's universal IP address automatically go to the nearest proxy on the overlay. The overlay then delivers the packets to the mobile host. Our architecture enables seamless mobility for both micro and macro mobility. While our initial design is not as mature as Mobile IP, it shows great promise to solve the traditional problems of ingress routing, firewalls, NATs, and rapid mobility with much lower complexity. We present our design as a scalable and deployable alternative to mobile IP. In this paper, we focus on describing the MobCast system architecture. We form our arguments for scalability, handoff-speed, and simplicity, and give our initial results for scalability. We postpone a detailed discussion of MobCast's security model for future work.
MobCast:使用可扩展任播代理实现无缝IP移动的覆盖架构
我们提出了一个路由覆盖系统,MobCast,简单有效的路由到移动主机。Mobcast节点在每个代理位置发布相同的地址空间,并且每个移动主机从该地址空间分配一个“通用”IP地址,因此发送到移动主机通用IP地址的数据包自动转到覆盖上最近的代理。然后,覆盖层将数据包发送到移动主机。我们的架构可以实现微观和宏观的无缝移动性。虽然我们最初的设计不像移动IP那样成熟,但它显示出很大的希望,可以以低得多的复杂性解决入口路由、防火墙、nat和快速移动性等传统问题。我们将我们的设计作为移动IP的可扩展和可部署的替代方案。本文重点描述了MobCast的系统架构。我们对可伸缩性、切换速度和简单性进行了论证,并给出了可伸缩性的初步结果。我们将对MobCast安全模型的详细讨论推迟到未来的工作中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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