Collaborative Research: NeTS-NBD: An Integrated Solution to Provide QoS, Traffic Engineering, and Fault Tolerance in an Overlay Network Environment

合作研究：NeTS-NBD：在覆盖网络环境中提供 QoS、流量工程和容错的集成解决方案

• 批准号: 0519897
• 负责人: Constantino Lagoa
• 金额: $ 6.58万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0519897&HistoricalAwards=false
• 关键词: Collaborative; Research; NeTS; NBD; Integrated

Recently one has witnessed the emergence of several service-based overlay architectures aimed at providing service qualities better than the best effort service available in today's Internet. Each of these architectures addresses different aspects of service quality issues, including traffic engineering, Quality of Service (QoS), and fault tolerance. However, due to the fact that resource availability and topology of the underlying network layer are hidden from the overlay, these architectures have to use various techniques to gain better control of the resources that may be used by the overlay, making it difficult to integrate different architectures to provide rich service qualities for various applications.In this proposal, a novel approach is presented which provides a unified framework to enable traffic engineering, QoS, and fault tolerance. The PIs will develop decentralized traffic control laws that will provide all these service qualities simultaneously. Since these control laws only use source inferable information, the added features are implemented locally at the source nodes. Moreover, since these control laws rely on results from the theory of optimization and control, they achieve multiple design objectives with provable global stability and convergence properties. Since the approach taken complies with the end-to-end design principle, it allows: Scalable and fast development of applications requiring various service quality features; Quick adaptation to the existing overlay and IP networking architectures to enhance their service quality feature sets; Better understanding, from a more fundamental point of view, of the existing end-to-end control protocols, such as TCP with or without multiple paths.

最近，人们已经目睹了几个基于服务的覆盖体系结构的出现，旨在提供比当今互联网中可用的尽力而为服务更好的服务质量。这些架构中的每一个都解决了服务质量问题的不同方面，包括流量工程、服务质量（QoS）和容错。然而，由于底层网络层的资源可用性和拓扑结构对覆盖层是隐藏的，这些架构必须使用各种技术来获得对覆盖层可能使用的资源的更好控制，使得难以集成不同的架构来为各种应用提供丰富的服务质量。提出了一种新颖的方法，其提供了一个统一的框架来实现流量工程、QoS和容错。PI将制定分散的交通控制法律，同时提供所有这些服务质量。由于这些控制律仅使用源可推断的信息，因此添加的特征在源节点处本地实现。此外，由于这些控制律依赖于优化和控制理论的结果，它们实现了多个设计目标，具有可证明的全局稳定性和收敛性。由于所采用的方法符合端到端设计原则，因此它允许：可扩展和快速开发需要各种服务质量功能的应用程序;快速适应现有的覆盖和IP网络架构，以增强其服务质量功能集;从更基本的角度更好地理解现有的端到端控制协议，例如具有或不具有多路径的TCP。