Collaborative Research: CNS Core: Small: Creating An Extensible Internet Through Interposition

合作研究：CNS核心：小：通过介入创建可扩展的互联网

• 批准号: 2242503
• 负责人: James McCauley
• 金额: $ 5.59万
• 依托单位: Mount Holyoke College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-03-01 至 2026-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2242503&HistoricalAwards=false
• 关键词: Collaborative; Research; CNS; Core; Small

In common parlance, the Internet is the set of applications and services that we can access from our phones, laptops, and other personal devices. However, in the networking research community, the term “the Internet” refers more specifically to the basic communication infrastructure on which these applications and services have been built. What many find surprising is that while the set of applications and services have changed dramatically over the years, the basic architecture of the Internet itself – that is, the arrangement of functionality in the communication infrastructure – has remained almost completely unchanged since it first took shape roughly forty years ago. This lack of change is not by choice; we know many ways the infrastructure could be improved to provide users with better security, privacy, and performance. Instead, the lack of change is because evolving such a large infrastructure is a difficult design challenge in itself. More specifically, any proposal for architectural change in the Internet must meet the twin challenges of: (i) how to deploy the new design without breaking the old, and (ii) how to create incentives so that all the major providers of the infrastructure benefit from this change (or else it is unlikely to happen). This research project aims to overcome these barriers with a design we call the Extensible Internet. If successful, this will not just be a one-time change, but will turn the Internet into a platform that can easily incorporate change on an ongoing basis. More technically, this work is built on the central insight that the original Internet architecture’s narrow waist of IP conflated two roles: that of tying all layer-2 (L2) networks together, and that of providing a service model to end hosts. The Extensible Internet separates these two roles by inserting an Interposition Layer between layers L3 and L4 that (i) is built on top of L3, and can use the current L3 without change, and (ii) provide the service model to end hosts. The entire focus of the Extensible Internet design is architecting this new layer so that an extensible set of services – ranging from secure attestation to improved privacy to multipoint delivery to various other delivery models – can be seamlessly deployed on top of this Interposition Layer. The research challenges include: how to structure the data path so that it can be both fully flexible and highly efficient; how to structure global services to be highly resilient; and how to feasibly support an evolving yet uniform service model (i.e., supported by all network providers). We will demonstrate the resulting design on various network testbeds, including NSF’s own FABRIC testbed. In addition, all software we create in this project will be publicly available and open source.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

通常，互联网是我们可以从手机，笔记本电脑和其他个人设备访问的应用程序和服务集。但是，在网络研究社区中，“互联网”一词更具体地是指已建立这些应用程序和服务的基本通信基础架构。许多人感到惊讶的是，尽管多年来的一系列应用程序和服务已经发生了巨大变化，但互联网本身的基本体系结构（即通信基础架构中的功能布置）几乎一直保持不变，因为它大约是四十年前大约在四十年前形成的。这种缺乏变化不是选择的。我们知道可以改进基础架构的多种方法，以为用户提供更好的安全性，隐私和性能。取而代之的是，缺乏变化是因为发展如此大的基础架构本身就是一个困难的设计挑战。更具体地说，任何关于互联网建筑变革的建议都必须应对以下双重挑战：（i）如何在不破坏旧设计的情况下部署新设计，以及（ii）如何创建激励措施，以使基础设施的所有主要提供者都从这种变化中受益（否则不太可能发生）。该研究项目旨在通过我们称为可扩展的互联网的设计来克服这些障碍。如果成功的话，这将不仅是一次性的变化，而且会将互联网变成一个可以持续不断更改的平台。从技术上讲，这项工作是基于中心见解的，即原始的Internet体系结构狭窄的IP腰部将两个角色融合在一起：将所有第2层（L2）网络绑在一起，以及提供服务模型以结束主机的角色。可扩展的Internet通过在L3和L4之间插入一个插入层，该角色将（i）构建在L3的顶部，并且可以使用当前的L3而无需更改，并且（ii）为最终主机提供服务模型。可扩展的Internet设计的整个重点是构建这一新层，以便一套可扩展的服务集（从安全证明到改进的隐私到多点交付再到其他各种交付模型）可以在此插入层的顶部无缝部署。研究挑战包括：如何构建数据路径，以使其既具有灵活性又高效；如何将全球服务构建高度抵抗力；以及如何支持不断发展而统一的服务模型（即所有网络提供商的支持）。我们将在各种网络测试台上演示所得的设计，包括NSF自己的面料测试床。此外，我们在该项目中创建的所有软件都将公开可用和开源。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准来诚实地通过评估来诚实地支持。

项目成果

Can We Save the Public Internet?

我们能拯救公共互联网吗？

• DOI: 10.1145/3649171.3649175
• 发表时间: 2023
• 期刊: ACM SIGCOMM Computer Communication Review
• 影响因子: 2.8
• 作者: Blumenthal, Marjory;Govindan, Ramesh;Katz-Bassett, Ethan;Krishnamurthy, Arvind;McCauley, James;Merrill, Nick;Narechania, Tejas;Panda, Aurojit;Shenker, Scott
• 通讯作者: Shenker, Scott