Collaborative Research: FIND: NetSerV - Architecture of a Service-Virtualized Internet

合作研究：FIND：NetServV - 服务虚拟化互联网架构

• 批准号: 0831912
• 负责人: Henning Schulzrinne
• 金额: $ 87.25万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-01-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0831912&HistoricalAwards=false
• 关键词: Collaborative; Research; FIND; NetSerV; Architecture

PROJECT SUMMARYDespite or because of the Internet?s great success, it has shown itself to be very resistant again attempts to add new functionality to the network core. This dilemma lead to the recent trend in networking to implement services using overlay networking; overlay networking provides an opportunity for end systems to collaborate with others to achieve enhanced functions without having to modify routers. However, since overlay networks operate at the application layer, they cannot effectively use the resources that are available to network services.To address the limitations of services in the current Internet, this work presents a clean slate Internet architecture, called NetServ, based on the concepts of service virtualization. NetServ strives to break up the functions provided by Internet services and to make these functionalities available as modular building blocks for network services. A building block effectively encapsulates a network resource or function realized by a network node, such as link monitoring data or routing tables, and provides tunable parameters for easy configurability. These building blocks form a foundation for the implementation of full-fledged network services, which can then be used by applications. Furthermore, the new framework handles aspects of service discovery, distribution and management, thereby making new services more readily deployable.This project addresses five major research challenges in the new service architecture: i) the definition of requirements for a service-virtualized Internet architecture, ii) the design of an architectural framework for modular, virtualized services, iii) the identification of an initial set of key building blocks, which together can provide a foundation for common network services, iv) the development of mechanisms and protocols for service discovery and service distribution, and v) the design and implementation of a content distribution service based on the NetServ architecture.The feasibility of the NetServ approach will be demonstrated by building the prototype of a content distribution service. This service will interwork with two other services that are crucial for a variety of applications: a generalized naming service and a network monitoring service. The naming service is capable of naming a variety of network entities (like content, users, services, and devices), while obeying policy constraints. The network monitoring service provides makes network performance data available to applications. Overall, the objective of this work is to develop an architecture that provides an efficient and extensible architecture for core network services, to implement a prototype of the new architecture, design and implement a prototype of a content distribution service to demonstrate the feasibility of NetServ, and to evaluate the new architecture in a simulation environment as well as on a GENI-like test bed.Intellectual Merit: NetServ fully decouples service execution from packet forwarding on a network node. A service only assumes that a node provides packet transport and possibly offers building blocks that can be used to access resources. The new architecture for next-generation Internet services, therefore, provides an efficient and flexible foundation for network services, makes the future Internet highly evolvable, and decouples services from a specific technology.Broader Impact: This work will make the Internet service-centric and enable services to directly utilize network resources as building blocks. NetServ can serve as an excellent container for integrating other ongoing FIND work at other institutions. This project will also contribute to both the graduate and undergraduate experimental and theoretical networking curriculum, and involve under-represented groups within its research efforts.

项目摘要，尽管或由于Internet取得了巨大的成功，但它已经表现出非常抵制的尝试再次尝试为网络核心添加新功能。这种难题导致网络上最近使用覆盖网络实施服务的趋势；覆盖网络为最终系统提供了一个与他人协作以实现增强功能的机会，而无需修改路由器。但是，由于覆盖网络在应用程序层处运行，因此他们无法有效地使用可用于网络服务的资源。为了解决当前Internet中服务的局限性，这项工作基于服务虚拟化的概念，提出了一种干净的板岩Internet体系结构，称为NetServ。 NetServ努力分解Internet服务提供的功能，并将这些功能作为网络服务的模块化构建块可用。一个构建块有效地封装了网络资源或通过网络节点实现的函数，例如链接监视数据或路由表，并提供可调参数，以简化可配置性。这些构件构成了实施成熟网络服务的基础，然后应用程序可以使用。 Furthermore, the new framework handles aspects of service discovery, distribution and management, thereby making new services more readily deployable.This project addresses five major research challenges in the new service architecture: i) the definition of requirements for a service-virtualized Internet architecture, ii) the design of an architectural framework for modular, virtualized services, iii) the identification of an initial set of key building blocks, which together can provide a foundation for common network services, iv）开发服务发现和服务分布的机制和协议，以及v）基于NetServ Architecture的内容分配服务的设计和实现。NetServ方法的可行性将通过构建内容分配服务的原型来证明。该服务将与其他两项对各种应用程序至关重要的服务进行互动：广义命名服务和网络监控服务。命名服务能够命名各种网络实体（例如内容，用户，服务和设备），同时遵守策略约束。网络监视服务可为应用程序提供网络性能数据。 Overall, the objective of this work is to develop an architecture that provides an efficient and extensible architecture for core network services, to implement a prototype of the new architecture, design and implement a prototype of a content distribution service to demonstrate the feasibility of NetServ, and to evaluate the new architecture in a simulation environment as well as on a GENI-like test bed.Intellectual Merit: NetServ fully decouples service execution from packet forwarding on a network node.服务仅假定节点提供数据包传输，并可能提供可用于访问资源的构建块。因此，用于下一代互联网服务的新架构为网络服务提供了有效而灵活的基础，使未来的Internet具有很高的发展，并从特定的技术中脱离了服务。Broader的影响：这项工作将使以Internet服务为中心和启用服务，以直接利用网络资源为基础。 NetServ可以作为在其他机构中整合其他正在进行的查找工作的绝佳容器。该项目还将有助于研究生和本科实验和理论网络课程，并参与其研究工作中的代表性不足的群体。