NeTS: Large: Collaborative Research: Location-Independent Networks: Evaluation Strategies and Studies

NeTS：大型：协作研究：位置无关网络：评估策略和研究

基本信息

批准号：
1413963
负责人：
Arun Venkataramani
金额：
$ 70.09万
依托单位：
University of Massachusetts Amherst
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2014
资助国家：
美国
起止时间：
2014-10-01 至 2019-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1413963&HistoricalAwards=false
关键词：
NeTS Large Collaborative Research Location

项目摘要

As the global Internet expands to satisfy the demands and expectations of an ever-increasing fraction of the world's population, profound changes are occurring in its interconnection structure, traffic dynamics, and the economic and political power of different players in the ecosystem. These changes not only impact network engineering and operations, but also present broader challenges for technology investment, future network design, public policy, and scientific study of the Internet itself. And yet, from both scientific and policy perspectives, the evolving ecosystem is largely uncharted territory.Two related transformations of the Internet ecosystem motivate this project: the emergence of Internet exchanges (IXes) as anchor points in the mesh of interconnection, and content providers and Content Delivery Networks (CDNs) as major sources of traffic flowing into the Internet. By some accounts over half the traffic volume in North America now comes from just two content distributors (Youtube and Netflix). This shift constitutes the rise of a new kind of hierarchy in the ecosystem, bringing new constraints on existing players who need to manage traffic on their networks to minimize congestion, resulting in tussles among commercial players as well as between the private sector and regulatory bodies, at the expense of users suffering degraded quality of experience.The goal of this project is to characterize the changing nature of the Internet's topology and traffic dynamics, and to investigate the implications of these changes on network science, architecture, operations, and public policy. The first task is to construct a new type of semantically rich Internet map, which will elucidate the role of IXes in facilitating robust and geographically diverse but complex interdomain connectivity. This map will guide the second task: a measurement study of traffic congestion dynamics induced by evolving peering and traffic management practices of CDNs and ISPs, including methods to detect and localize the congestion to specific points in the network. Data used will include measurements gathered using CAIDA's global active measurement infrastructure Archipelago (Ark), as well as data contributed by industry players for use in validation and refinement of methods.Ultimately, this project will advance the scientific community's understanding of the evolving Internet by developing and applying a more sophisticated model of the physical Internet topology. The inquiry is structured to pursue new methods of analysis and insights into the interaction between CDN dynamics, interconnection at IXes, and network performance. Results, including the sharing of collected and curated data sets, will also inform related fields, including traffic modeling, infrastructure resiliency and protection, network economics, industrial organization, and future network architecture design.Additionally, results will be disseminated via publications, conferences, industry meetings, online lectures, web pages. CAIDA and CSAIL will jointly host annual international interdisciplinary workshops to close the loop between empirical research results, theoretical modeling activities, and policymaking. By providing unbiased data about the evolving Internet ecosystem, the proposed research has the potential to be of great value to Internet users, network operators, and governments.

随着全球互联网的扩展，以满足世界人口不断增加的需求和期望，其互连结构，交通动态以及生态系统中不同参与者的经济和政治力量发生了深刻的变化。这些变化不仅会影响网络工程和运营，而且对互联网本身的技术投资，未来网络设计，公共政策和科学研究提出了更广泛的挑战。然而，从科学和政策的角度来看，不断发展的生态系统在很大程度上是未知的领域。两个相关的互联网生态系统的转变激励了这一项目：互联网交流（IXES）的出现，作为互连网的锚点，以及互联网络（cdns）（cdns）（cdns）（cdns）（cdns）（cdns）（cdns）（cdns）（cdns）（cdns）（主要流量）。从某些帐户中，北美的交通量超过一半，现在仅来自两个内容分销商（YouTube和Netflix）。这一转变构成了生态系统中一种新的层次结构的兴起，对现有的玩家带来了新的限制，这些参与者需要管理网络上的流量以最大程度地减少拥塞，从而在私营部门和监管机构之间以及监管机构之间发生争执，以使用户的流量降低了互联网质量的范围。这些关于网络科学，建筑，运营和公共政策的变化。第一个任务是构建一种新型的语义丰富的Internet图，该图将阐明IXE在促进健壮和地理上多样化但复杂的域间连接方面的作用。该地图将指导第二个任务：通过不断发展的CDN和ISP的凝视和交通管理实践引起的交通拥堵动力学的测量研究，包括检测和将拥塞定位到网络中的特定点的方法。所使用的数据将包括使用CAIDA的全球主动测量基础设施群岛（ARK）收集的测量结果，以及行业参与者贡献的数据，用于验证和改进方法。最终，该项目将通过开发和应用更复杂的物理Internet拓扑模型来促进科学界对Evoling Internet的理解。该查询的结构是追求新的分析方法，并洞悉CDN动态，IXES的互连和网络性能之间的相互作用。结果，包括共享和策划数据集的共享，还将为相关领域提供信息，包括交通建模，基础架构弹性和保护，网络经济学，工业组织以及未来的网络架构设计。 CAIDA和CSAIL将共同举办年度国际跨学科研讨会，以结束经验研究结果，理论建模活动和决策之间的循环。通过提供有关不断发展的互联网生态系统的无偏数据，拟议的研究有可能对互联网用户，网络运营商和政府具有巨大价值。