U Guam Gigabit Science WAN for R25 GM63682-01

描述（由申请人提供）：本增刊的目的是提供快速、可靠的内联网和互联网服务，以连接校园内的理学院和学生，并为教师和学生提供使用这些服务的基本培训和支持。设计了一个容错、可伸缩、负载均衡和可配置的系统来提供必要的基础设施。这些特性将通过多条DSL线路和一个面向科学界的广域网（WAN）来保证，该广域网通过千兆铜缆主干（由大学提供）和无线（802.11 b）连接到校园内更偏远的建筑物。将实施两级帮助台系统，以培训和支持学生和教师，同时为计算机科学专业的学生提供工作经验。除了为所有科学教师和学生提供基本的互联网和文件共享能力外，该系统还将使课堂上使用实时互联网，计算机辅助教学和测试，并访问校园资源，如RISE服务器和图书馆（例如在线期刊）。

DESCRIPTION (provided by applicant): The aims of this supplement are to provide fast, reliable intranet and Internet services to link the science faculty and students across campus, and to provide faculty and students with essential training and support in use of these services. A fault-tolerant, scaleable, load balanced, and configurable system has been designed to provide the necessary infrastructure. These characteristics will be assured through multiple DSL lines, and a wide-area network (WAN) for the science community via a gigabit-over-copper backbone (to be furnished by the university) plus wireless (802.11 b) connections to more remote buildings on campus. A two-level help desk system will be implemented to train and support students and faculty, while at the same time providing work experience for computer science students. In addition to providing all science faculty and students with basic Internet and file sharing capabilities, the system will enable use of live Internet in class, computer-mediated instruction and testing, and access to campus resources such as the RISE servers and the library (e.g., online journals). Internet capabilities at U. Guam are limited by bandwidth (11/2 Tl lines total, or ~2250K bps) and unreliable connections through the Computer Center proxy servers. The network connecting the various college LAN's to allow them to access the leased-line Internet connection from the Computer Center is a mixture of fiber loops and point-to-point connections between the computer center and some colleges. The capacity of the current infrastructure is insufficient to provide the bandwidth-intensive services being developed including those in the RISE program IT classroom. Security concerns with the present mixed administrative/academic computing prevent file sharing between buildings. The present system is very prone to failure, and email and Internet services are frequently unavailable; most students and faculty do not have effective access to the Internet from campus; this is a serious impediment to the training goals of the RISE program and the research (including SCORE) projects at UOG. Project objectives, specified in measurable terms and evaluation questions, will be tracked through to allow evidence-based decision-making on the future development of the campus network. The infrastructure and the support service will serve as a model for further development of a proposed campus-wide Academic Computing Services, and the network can be reconfigured to integrate fully with the university system beyond the end of the grant period. The system is a novel solution to our unusual circumstances, and has been reviewed by Cisco-trained engineers.