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首页> 外文会议>IFIP TC6 International Conference on Personal Wireless Communications(PWC 2004); 20040921-23; Delft(NL) >A Framework for End-to-End QoS Context Transfer in Mobile IPv6
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A Framework for End-to-End QoS Context Transfer in Mobile IPv6

机译：移动IPv6中端到端QoS上下文传输的框架

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摘要

Providing Quality-of-Service (QoS) guarantees and mobility support for Internet devices has become a hot research topic in the Next Generation Internet research, since mobile computing is getting widespread. Context transfers allow better node mobility support, and avoid re-initiation of signaling to and from a Mobile Node (MN). However, Context Transfer Protocol (CTP) proposed by IETF can not meet the need of end-to-end QoS mechanisms because contexts are only transferred between Access Routers (ARs). This paper presents a framework for end-to-end QoS context transfer based on the architecture of F-HMIPv6, which may provide an end-to-end QoS context transfer for real-time applications, therefore they can get promptly the same forwarding process, minimize the handover service disruption, and avoid initiating the end-to-end QoS signaling from scratch after an MN performs handovers. The Context Transfer Data message containing the QoS context information, a hop-by-hop extension IPv6 option header, is sent from the previous access router (PAR) to the next access router (NAR) via the Mobility Anchor Point (MAP) where old path and new path meet each other. The QoS entities in the nodes between MAP and NAR will be required to check the QoS context information and reserve appropriate resources for MN's sessions and update the new path data in the QoS entities. After successful context transfers, the resources reserved for MN's sessions will be released on the old path. Our scheme may also reduce the signaling overhead and handover latencies by adopting the F-HMIPv6 architecture.
机译：由于移动计算的普及，为Internet设备提供服务质量（QoS）保证和移动性支持已成为下一代Internet研究的热门研究课题。上下文传输可提供更好的节点移动性支持，并避免往返于移动节点（MN）的信令重新初始化。但是，IETF提出的上下文传输协议（CTP）不能满足端到端QoS机制的需要，因为上下文仅在访问路由器（AR）之间传输。本文提出了一种基于F-HMIPv6架构的端到端QoS上下文传输框架，该框架可以为实时应用提供端到端QoS上下文传输，因此它们可以迅速获得相同的转发过程。 ，最小化切换服务中断，并且避免在MN执行切换之后从头开始发起端到端QoS信令。包含QoS上下文信息（逐跳扩展IPv6选项标头）的上下文传输数据消息是通过旧的移动锚点（MAP）从上一个访问路由器（PAR）发送到下一个访问路由器（NAR）的路径和新路径相遇。要求MAP和NAR之间的节点中的QoS实体检查QoS上下文信息并为MN的会话保留适当的资源，并更新QoS实体中的新路径数据。成功的上下文传输后，为MN会话保留的资源将在旧路径上释放。我们的方案还可以通过采用F-HMIPv6体系结构来减少信令开销和切换等待时间。

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