NeTS-FIND: Collaborative Research: Architectural Support for Selectively-Connected End Systems: Enabling an Energy-Efficient Future Internet

NetS-FIND：协作研究：选择性连接终端系统的架构支持：实现节能的未来互联网

• 批准号: 0721933
• 负责人: Mark Allman
• 金额: $ 22万
• 依托单位: International Computer Science Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0721933&HistoricalAwards=false
• 关键词: NeTS; FIND; Collaborative; Research; Architectural

Many architectural elements of today's Internet implicitly assume that hosts remain attached to the network over extended periods of time. However, there is much to be gained by supporting a style of networking that does not require an end system to maintain full, ongoing connectivity in order to maintain its network "presence." In this project we explore a style of networking that we term "selectively-connected", by which we mean an end system, can knowingly manage the extent of its network connectivity in response to internal or exterior events, as it anticipates changes in connectivity. While selectively-connected networking also has applications for end systems that enter outage periods (e.g., a user closing a notebook, or a mobile device entering no-coverage area), one highly significant form of operation it can enable concerns placing end systems into some degree of "sleep" in order to operate with much greater energy efficiency. Such sleeping not only can benefit portable devices by greatly extending their battery lifetime, but can also realize energy savings at a national scale by enabling desktop systems and set-top devices to enter states of greatly reduced processing without sacrificing their network presence. In this project the researchers undertake initial designs of new architectural components for better supporting selectively-connected networking, by which sleeping hosts can retain their standing in the network or delegate agents to act on their behalf during their absence. These span: exposing selective connectivity; evolving soft state into notions of "proxyable" or "limbo" state; facilitating host-based control; introducing "assistants" to work in concert with sleeping end systems; exploring primitives that applications might use to express the semantics they wish to preserve when selectively-connected; and considering network links that can themselves sleep when the end systems they serve are likewise sleeping.

当今互联网的许多架构元素都隐含地假设主机在长时间内仍在网络上附加。 但是，通过支持一种不需要最终系统来维持完整，持续的连接以维持其网络的“存在”的网络风格，可以获得很多好处。 在这个项目中，我们探索了一种我们称为“选择性连接”的网络风格，我们的意思是最终系统，可以故意管理其网络连接的程度，以响应内部或外部事件，因为它预计连接性的变化。 虽然有选择性连接的网络还为输入中断期（例如，关闭笔记本电脑的用户或进入无覆盖区域的移动设备）提供了应用程序，但一种高度重要的操作形式可以使您能够将最终系统置于一定程度的“睡眠”中，以便以更大的能量效率运行。 这样的睡眠不仅可以通过大大延长电池寿命来使便携式设备受益，而且还可以通过启用台式系统和机顶设备来实现全国范围内的节能，而无需牺牲网络的存在，可以大大减少处理状态。 在这个项目中，研究人员进行了新的建筑组件的初始设计，以更好地支持有选择的连接网络，通过该网络，睡眠宿主可以在网络中保持其状态或在缺席的情况下代表他们代表他们的代理人行事。 这些跨度：揭示选择性连通性；将软状态发展为“可临近”或“ limbo”状态的概念；促进基于宿主的控制；引入“助手”与睡眠端系统协同合作；探索原始词，即在选择性连接时，应用程序可能会用来表达他们希望保留的语义；并考虑当他们服务的最终系统同样睡觉时可以自己睡觉的网络链接。