Collaborative Research: NeTS-FIND: Postcards from the Edge: A Cache-and-Forward Architecture for the Future Internet

提案编号：0626959PI: Roy Yates机构：Rutgers University提案编号：0626874PI: James Kurose机构：马萨诸塞大学stitle: Collaborative NeTS-FIND：来自边缘的明信片：摘要本项目开发了一种缓存转发网络架构，利用存储设备不断降低的成本和不断增加的容量，为有线或无线的终端主机提供统一、高效的传输服务；静态、移动和/或间歇性断开连接；无论是资源富国还是穷国。该体系结构的基础是传输层服务，该服务以逐点存储转发的方式对大型文件进行操作。为了实现这一架构，本项目设计、实现并评估了一种新的网络架构，该架构包含以下要素：(1)可靠的大文件逐跳传输；(2)推拉架构，可以在有线网络之间随意传送文件；(3)增强命名，为移动终端提供位置信息；(4)对流行内容进行分布式缓存，使对等文件共享成为一流的服务，并实现高效可靠的多播。该项目的实验评估阶段基于PlanetLab、ORBIT无线电网格测试平台和未来实验系统支持的真实世界环境的广泛使用，研究各种潜在协议设计选择和使用/流量场景的网络性能权衡。该项目的技术优势在于建筑设计的互补组合，量化建筑组件性能优势的宏观模型的发展，以及关键建筑创新的原型实现和实验验证。这个项目更广泛的影响是它对未来互联网的一个或多个协议架构的定义和选择的贡献，导致对科学和商业最终用户都有价值的新服务和应用。

Proposal Number: 0626959PI: Roy Yates Institution: Rutgers UniversityProposal Number: 0626874PI: James Kurose Institution: University of MassachusettsTitle: Collaborative NeTS-FIND: Postcards from the Edge: A Cache-and-Forward Architecture for the Future Internet AbstractThis project develops a cache-and-forward network architecture that exploits the decreasing cost and increasing capacity of storage devices to provide unified and efficient transport services to end hosts that may be wired or wireless; static, mobile, and/or intermittently disconnected; and either resource rich or poor. Fundamental to this architecture is a transport layer service that operates in a hop-by-hop store-and-forward manner with large files. To realize this architecture, this project designs, implements and evaluates a new network architecture that incorporates the following elements: (1) reliable hop-by-hop transport of large files; (2) push-pull architecture for opportunistic delivery of files both to and from the wired network; (3) enhanced naming to provide location information for mobile terminals; and (4) distributed caching of popular content to make peer-to-peer file sharing a first-class service and to enable efficient reliable multicast. The experimental evaluation phase of the project, based on extensive use of PlanetLab, the ORBIT radio grid testbed and real world environments supported by future experimental systems, examines network performance trade-offs for various potential protocol design choices and usage/traffic scenarios. The technical merit of this project is in the complementary mix of architectural design, the development of macroscopic models quantifying the performance benefits of architectural components, and a prototype implementation and experimental validation of key architectural innovations. The broader impact of this project is its contribution towards the definition and selection of one or more protocol architectures for the future Internet, leading to new services and applications of value to both scientific and commercial end users.