STI: A Next Generation Integrated Environment for Collaborative Work Across Advanced Networks

STI：跨高级网络协作工作的下一代集成环境

• 批准号: 0230937
• 负责人: Harvey Newman
• 金额: $ 75万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2006-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0230937&HistoricalAwards=false
• 关键词: STI; Next; Generation; Integrated; Environment

The developing, building and deploying of VRVS2, a unique, globally scalable next-generation system for real-time collaboration by small workgroups, medium and large teams engaged in research, education and outreach, over an ensemble of national and international networks is proposed. The collaboration system builds on the existing limited-scale prototype-production system serving the high energy and nuclear physics (HENP) community and some other data-intensive science and engineering sectors. The primary goals of this proposal are to extend the VRVS technology to provide the software infrastructure and Web-enabled user interfaces required to meet the research and education needs of many fields. VRVS2 will be global in scope, covering the full range of existing and emerging protocols and client devices for daily collaboration, from mobile devices to desktops to installations in large auditoria. It will be integrated with the Grid-enabled Analysis Environment (GAE) now under development at Caltech in partnership with the GriPhyN, iVDGL and PPDG projects in the US, and the DataGrid, DataTAG, Cross Grid projects in Europe. The current VRVS system has been chosen by the Internet2 Digital Video (I2-DV) Initiative as a preferred foundation for the development of advanced video, audio and multimedia collaborative applications by the Internet2 community of US Research and Education schools and labs. The VRVS2 project will create a "testbed video network" and develop the necessary middleware to support a set of new and essential requirements for rapid data exchange, and a high level of interactivity in large-scale scientific collaborations including support for emerging standards. The new design, based on a pure peer-to-peer architecture, will facilitate the monitoring functions as well as provide a high degree of reliability and scalability. Each VRVS network server, which handles the real-time traffic, will be independent, self-managed by internal monitoring agents, and will interact only with its peer reflector nodes. The architecture will be fully redundant, with automatic re-routing of packet streams in case one reflector fails, including automatic bandwidth and QoS monitoring (latency, packet loss, and jitter) between reflectors, in order to assure the best possible connectivity for real time communication. A modular and scalable architecture based on web services to provide advanced monitoring and tracking tools that support a very large number of conferences and users will be used. Networking agents that run on the desktop or at the computer center will allow any videoconferencing client from a protected site with a firewall and/or NAT to communicate with any other client in a public or private remote location. Authentication and optional encryption will be added to maintain confidentiality of inter-personal communications. NSF is funding this in the belief that the VRVS2 project may have a profound impact on education, as well as research.

VRVS2是一种独特的、全球可扩展的下一代系统，用于小型工作组、中型和大型研究、教育和推广团队在国家和国际网络上的实时协作。该协作系统建立在现有的有限规模原型生产系统的基础上，服务于高能和核物理（HENP）社区以及其他一些数据密集型科学和工程部门。该提案的主要目标是扩展VRVS技术，以提供软件基础设施和支持web的用户界面，以满足许多领域的研究和教育需求。VRVS2将是全球性的，涵盖所有现有的和新兴的协议和客户端设备，用于日常协作，从移动设备到桌面设备，再到大型礼堂的安装。它将与加州理工学院正在与美国的GriPhyN、iVDGL和PPDG项目以及欧洲的DataGrid、DataTAG、Cross Grid项目合作开发的网格分析环境（GAE）集成。目前的VRVS系统已被internet - 2数字视频（I2-DV）倡议选中，作为美国研究和教育学校和实验室的internet - 2社区开发高级视频、音频和多媒体协作应用的首选基础。VRVS2项目将创建一个“测试平台视频网络”，并开发必要的中间件，以支持快速数据交换的一系列新的基本需求，以及大规模科学合作中的高水平交互性，包括对新兴标准的支持。新的设计，基于一个纯粹的点对点架构，将促进监控功能，并提供高度的可靠性和可扩展性。处理实时流量的每个VRVS网络服务器将是独立的，由内部监控代理进行自我管理，并且只与对等反射器节点交互。该架构将是完全冗余的，在一个反射器发生故障时自动重新路由数据包流，包括反射器之间的自动带宽和QoS监控（延迟，数据包丢失和抖动），以确保实时通信的最佳连接。将使用基于web服务的模块化和可扩展架构，以提供支持大量会议和用户的高级监控和跟踪工具。在桌面或计算机中心运行的网络代理将允许来自防火墙和/或NAT保护站点的任何视频会议客户端与位于公共或私人远程位置的任何其他客户端进行通信。将增加身份验证和可选加密，以保持人际通信的机密性。NSF之所以资助这个项目，是因为相信VRVS2项目可能会对教育和研究产生深远的影响。