首页> 外文OA文献 >Exploring Issues of Quality of Service in a Next Generation Internet Testbed: A Case Study Using PathMaster
【2h】

Exploring Issues of Quality of Service in a Next Generation Internet Testbed: A Case Study Using PathMaster

机译:探索下一代Internet测试平台中的服务质量问题:使用PathMaster的案例研究

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

This case study describes a project that explores issues of quality of service (QoS) relevant to the next-generation Internet (NGI), using the PathMaster application in a testbed environment. PathMaster is a prototype computer system that analyzes digitized cell images from cytology specimens and compares those images against an image database, returning a ranked set of “similar” cell images from the database. To perform NGI testbed evaluations, we used a cluster of nine parallel computation workstations configured as three subclusters using Cisco routers. This architecture provides a local “simulated Internet” in which we explored the following QoS strategies: (1) first-in-first-out queuing, (2) priority queuing, (3) weighted fair queuing, (4) weighted random early detection, and (5) traffic shaping. The study describes the results of using these strategies with a distributed version of the PathMaster system in the presence of different amounts of competing network traffic and discusses certain of the issues that arise. The goal of the study is to help introduce NGI QoS issues to the Medical Informatics community and to use the PathMaster NGI testbed to illustrate concretely certain of the QoS issues that arise.
机译:此案例研究描述了一个项目,该项目在测试平台环境中使用PathMaster应用程序来探索与下一代Internet(NGI)相关的服务质量(QoS)问题。 PathMaster是一个原型计算机系统,可以分析细胞学样本中的数字化细胞图像,并将这些图像与图像数据库进行比较,然后从数据库中返回一组经过排序的“相似”细胞图像。为了执行NGI测试平台评估,我们使用了由9个并行计算工作站组成的集群,这些工作站配置为使用Cisco路由器的三个子集群。此体系结构提供了本地“模拟Internet”,在其中我们探索了以下QoS策略:(1)先进先出队列,(2)优先级队列,(3)加权公平队列,(4)加权随机早期检测,以及(5)流量调整。这项研究描述了在存在不同数量的竞争网络流量的情况下,将这些策略与PathMaster系统的分布式版本一起使用的结果,并讨论了出现的某些问题。该研究的目的是帮助向医疗信息学界介绍NGI QoS问题,并使用PathMaster NGI测试平台来具体说明出现的某些QoS问题。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号