• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Measuring the bandwidth of packet switched networks.
【24h】

Measuring the bandwidth of packet switched networks.

机译：测量分组交换网络的带宽。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Measuring the link bandwidth along a path is important for many applications. Some applications can adapt their content to exchange quality for speed. Some routing architectures route based on the bandwidth of links. Users and organizations benchmark the bandwidth of networking equipment and service providers for purchasing decisions and verifying service level agreements. Researchers measure bandwidth to understand the behavior of the Internet.; However, the diversity of the Internet makes bandwidth measurement challenging. The capacity, utilization, and latency of Internet links vary over several orders of magnitude. In addition, the heterogeneity of administrative domains inhibits the deployment of measurement infrastructure at the network core and end hosts.; The contribution of this dissertation is to increase the accuracy and decrease the overhead of doing end-to-end bandwidth measurement. Our thesis is that it is possible to do accurate and efficient end-to-end bandwidth measurement in the current heterogeneous Internet. We present a variety of techniques to deal with these challenges. Packet Tailgating is a technique to measure all the link bandwidths along a path. It requires no modifications to existing routers and typically requires 50% fewer probe packets than existing techniques, although the estimates of all current end-to-end techniques (including packet tailgating) can deviate from the nominal by as much as 100%. Receiver Only Packet Pair measures the bottleneck bandwidth along a path without requiring measurements from the sending host. Adaptive Kernel Density Estimation Filtering improves the accuracy of bottleneck link measurement by filtering out the effect of cross traffic, even when link bandwidths differ by several orders of magnitude. Potential Bandwidth Filtering improves the accuracy of passive bottleneck link bandwidth measurement by filtering out the effect of applications that send packets at a low rate. The combination of these techniques to measure bottleneck link bandwidth generates estimates that are within 10% of the nominal.
机译：测量路径上的链路​​带宽对于许多应用而言很重要。一些应用程序可以调整其内容以交换质量以提高速度。一些路由体系结构基于链接的带宽进行路由。用户和组织对网络设备和服务提供商的带宽进行基准测试，以购买决策并验证服务水平协议。研究人员测量带宽以了解Internet的行为。但是，互联网的多样性使带宽测量具有挑战性。 Internet链接的容量，利用率和延迟会在几个数量级上变化。另外，管理域的异质性也阻碍了测量基础架构在网络核心和终端主机上的部署。本文的目的是提高精度，减少端到端带宽测量的开销。我们的论点是，在当前的异构Internet中，可以进行准确而有效的端到端带宽测量。我们提出了各种技术来应对这些挑战。 数据包尾板是一种用于测量路径上所有链路带宽的技术。它不需要对现有路由器进行任何修改，并且与现有技术相比，通常所需的探测数据包要少50％，尽管对所有当前端到端技术（包括数据包尾注）的估计可能会偏离标称值多达100％。 仅接收方数据包对可以测量路径上的瓶颈带宽，而无需发送主机进行测量。 自适应内核密度估计过滤通过滤除交叉流量的影响来提高瓶颈链路测量的准确性，即使链路带宽相差几个数量级也是如此。 潜在带宽过滤通过滤除以低速率发送数据包的应用程序的影响，提高了被动瓶颈链路带宽测量的准确性。这些技术的组合用于测量瓶颈链路带宽，所产生的估计值在标称值的10％以内。

著录项

  • 作者

    Lai, Kevin I-Sen.;

  • 作者单位

    Stanford University.;

  • 授予单位 Stanford University.;
  • 学科 Computer Science.
  • 学位 Ph.D.
  • 年度 2003
  • 页码 134 p.
  • 总页数 134
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自动化技术、计算机技术;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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