NeTS: Medium: Collaborative Research: A Software Defined Internet Exchange

NeTS：媒介：协作研究：软件定义的互联网交换

• 批准号: 1409076
• 负责人: Nicholas Feamster
• 金额: $ 50万
• 依托单位: Georgia Tech Research Corporation
• 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 2015-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1409076&HistoricalAwards=false
• 关键词: NeTS; Medium; Collaborative; Research; Software

The Border Gateway Protocol(BGP) is the protocol used to administer and control the flow of traffic between the separately administered networks that connect together to form the Internet. Because many of the current failings of the Internet are due to BGP's poor performance and limited functionality, this project aims to explore incrementally deployable ways to leverage Software-Defined Networking's (SDN) power to improve interdomain routing. These improvements will facilitate higher return on investment via load balancing and traffic engineering, increased capabilities to respond to denial-of-service attacks, and new services such as application specific peering where two networks exchange traffic only for certain applications (e.g., video). Additionally, the project will improved the ability of network operators to track and engineer peering relationships based on traffic volume.This project exploits the re-emergence of Internet eXchange Points (IXPs) to create Software Defined eXchanges (SDXs) that fundamentally change network control. The project has two major themes: (1) near-term solutions that coexist with BGP; and (2) long-term solutions that replace BGP entirely, using IXPs as the dominant mode of interconnection. In terms of near-term solutions, the central intellectual question explores the improvements that are possible when a single IXP deploys SDN-based technology. Longer term, assuming that SDXes will one day become more prominent, the project is developing solutions that replace BGP entirely with an SDX-mediated Internet, where all peering takes place at these interconnection points. Such a design would make policy only relevant to the endpoints (the sending and receiving domains) and would eliminate policy complications from intermediate providers. The project is also investigating how these endpoint policies might emerge, how the inter-SDX routing is done, how the longer-term design might be incrementally deployed, and what its impact might be in the provider ecosystem. The SDX design may point the way to a more stable, secure, and economically sound Internet.

边界网关协议(BGP)是用于管理和控制连接在一起形成Internet的单独管理网络之间的流量的协议。由于当前Internet的许多故障都是由于BGP的低性能和有限的功能造成的，因此该项目旨在探索可增量部署的方法，以利用软件定义网络(SDN)的能力来改进域间路由。这些改进将通过负载平衡和流量工程促进更高的投资回报，增强应对拒绝服务攻击的能力，以及应用程序特定对等等新服务，其中两个网络仅为特定应用程序(例如视频)交换流量。此外，该项目将提高网络运营商根据流量跟踪和设计对等关系的能力。该项目利用互联网交换点(IXP)的重新出现来创建从根本上改变网络控制的软件定义交换(SDX)。该项目有两个主要主题：(1)与BGP共存的短期解决方案；(2)完全取代BGP的长期解决方案，使用IXP作为主要的互联模式。就近期解决方案而言，核心的智力问题探讨了当单个IXP部署基于SDN的技术时可能带来的改进。从长远来看，假设SDX有一天会变得更加突出，该项目正在开发解决方案，用SDX中介的互联网完全取代BGP，所有对等都在这些互联点进行。这样的设计将使策略仅与端点(发送域和接收域)相关，并将消除中间提供商的策略复杂性。该项目还在调查这些终端策略可能如何出现、如何进行SDX间路由、如何以增量方式部署长期设计，以及其对提供商生态系统可能产生的影响。SDX的设计可能会为更稳定、更安全、更经济合理的互联网指明方向。