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

提案编号：0626959PI：罗伊·耶茨机构：罗格斯大学提案编号：0626874PI：James Kurose机构：马萨诸塞大学标题：协作网络-查找：来自边缘的明信片：未来互联网的缓存转发体系结构该项目开发了一种缓存转发网络体系结构，该体系结构利用存储设备不断下降的成本和不断增加的容量，为终端主机提供统一而高效的传输服务，这些主机可能是有线的，也可能是无线的；静态的、移动的和/或间歇性断开的；以及资源丰富的或贫穷的。这种体系结构的基础是传输层服务，它以逐跳存储转发的方式处理大文件。为了实现这一体系结构，本项目设计、实现和评估了一种新的网络体系结构，该体系结构包括以下元素：(1)可靠的逐跳传输大文件；(2)用于向有线网络和从有线网络机会主义地传送文件的推拉体系结构；(3)增强命名以向移动终端提供位置信息；以及(4)分布式缓存流行内容，使对等文件共享成为一流的服务并实现高效可靠的组播。该项目的实验评估阶段基于PlanetLab、轨道无线电网格测试床和由未来实验系统支持的真实世界环境的广泛使用，检查了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，开发了量化建筑部件性能效益的宏观模型，以及关键建筑创新的原型实施和实验验证。该项目的更广泛影响是，它有助于为未来的因特网定义和选择一个或多个协议体系结构，从而产生对科学和商业终端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.