A Comprehensive Tutorial on Science DMZ
A Comprehensive Tutorial on Science DMZ
复制标题
科学DMZ综合教程
DOI：
10.1109/comst.2018.2876086
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发表时间：
2019
影响因子：
35.6
通讯作者：
Ghani, Nasir
中科院分区：
文献类型：
--
作者：
Crichigno, Jorge;Bou-Harb, Elias;Ghani, Nasir
科学和工程应用现在正以前所未有的速度产生数据。从大型设施，如大型强子对撞机到便携式DNA测序设备，这些仪器可以在短时间内产生数百TB的数据。研究人员和其他专业人员依靠网络在传感位置、仪器、数据存储设备和计算系统之间传输数据。虽然通用网络，也称为企业网络，能够传输基本数据，如电子邮件和Web内容，但在传输TB和PB级的数据时，它们面临着许多挑战。在最好的情况下，这些网络上的科学数据传输可能会持续几天甚至几周。为了应对这一挑战，科学非军事区(Science DMZ)应运而生。科学非军事区是一个网络或网络的一部分，旨在促进大科学数据的传输。Science DMZ的主要组成部分包括：1)专用终端设备，称为数据传输节点(DTN)，专为在广域网上高速发送/接收数据而构建；2)连接DTN、仪器、存储设备和计算系统的高吞吐量、无摩擦路径；3)性能测量设备，用于监控多个域中的端到端路径；以及4)为高性能环境量身定制的安全策略和实施机制。尽管科学非军事区的作用越来越重要，但文献仍然缺乏一个指导方针，为研究人员和其他专业人员提供知识，以拓宽对科学非军事区的理解和发展。本文通过介绍关于科学DMZ的全面教程来解决这一差距。本教程回顾了对科学DMZ有重大影响的基本网络概念，如路由器体系结构、TCP属性和操作安全性。然后，本教程深入研究不同层的协议和设备，从物理网络基础设施到应用层工具和安全设备，必须仔细考虑这些协议和设备才能实现科学DMZ的最佳运行。本文还将科学DMZ与通用网络进行了对比，并给出了适用于当前和未来科学DMZ的经验结果和使用案例。
Science and engineering applications are now generating data at an unprecedented rate. From large facilities such as the Large Hadron Collider to portable DNA sequencing devices, these instruments can produce hundreds of terabytes in short periods of time. Researchers and other professionals rely on networks to transfer data between sensing locations, instruments, data storage devices, and computing systems. While general-purpose networks, also referred to as enterprise networks, are capable of transporting basic data, such as e-mails and Web content, they face numerous challenges when transferring terabyte- and petabyte-scale data. At best, transfers of science data on these networks may last days or even weeks. In response to this challenge, the Science Demilitarized Zone (Science DMZ) has been proposed. The Science DMZ is a network or a portion of a network designed to facilitate the transfer of big science data. The main elements of the Science DMZ include: 1) specialized end devices, referred to as data transfer nodes (DTNs), built for sending/receiving data at a high speed over wide area networks; 2) high-throughput, friction-free paths connecting DTNs, instruments, storage devices, and computing systems; 3) performance measurement devices to monitor end-to-end paths over multiple domains; and 4) security policies and enforcement mechanisms tailored for high-performance environments. Despite the increasingly important role of Science DMZs, the literature is still missing a guideline to provide researchers and other professionals with the knowledge to broaden the understanding and development of Science DMZs. This paper addresses this gap by presenting a comprehensive tutorial on Science DMZs. The tutorial reviews fundamental network concepts that have a large impact on Science DMZs, such as router architecture, TCP attributes, and operational security. Then, the tutorial delves into protocols and devices at different layers, from the physical cyberinfrastructure to application-layer tools and security appliances, that must be carefully considered for the optimal operation of Science DMZs. This paper also contrasts Science DMZs with general-purpose networks, and presents empirical results and use cases applicable to current and future Science DMZs.
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