公开(公告)号：US20050204028A1

公开(公告)日：2005-09-15

申请号：US10881751

申请日：2004-06-30

申请人： Paramvir Bahl ,  Lidong Zhou ,  Lili Qiu ,  Ananth Rao

发明人： Paramvir Bahl ,  Lidong Zhou ,  Lili Qiu ,  Ananth Rao

IPC分类号： G06F15/173

CPC分类号： H04L41/0873 ,  H04L41/12 ,  H04L41/142 ,  H04L41/145 ,  H04L43/04 ,  H04L45/02

摘要： A network troubleshooting framework is described. In an implementation, a method includes forming a plurality of reports by a plurality of nodes in a network, wherein each of the reports is formed by a respective one of the nodes and includes trace data obtained from the respective node and another of the nodes. An inconsistency is detected in the trace data in one of the reports when compared with corresponding trace data in another of the reports. A set of the nodes is found that formed one or more of the reports having the inconsistency in the trace data.

摘要翻译： 描述了网络故障排除框架。 在实现中，一种方法包括由网络中的多个节点形成多个报告，其中每个报告由相应的一个节点形成，并且包括从相应节点和另一个节点获得的跟踪数据。 与其他报告中的对应跟踪数据进行比较时，在其中一个报告中的跟踪数据中检测到不一致。 发现一组节点形成了跟踪数据中不一致的一个或多个报告。

公开(公告)号：US20050169186A1

公开(公告)日：2005-08-04

申请号：US10880960

申请日：2004-06-30

申请人： Lili Qiu ,  Paramvir Bahl ,  Lidong Zhou ,  Ananth Rao

发明人： Lili Qiu ,  Paramvir Bahl ,  Lidong Zhou ,  Ananth Rao

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L41/145 ,  H04L41/046 ,  H04L41/0631 ,  H04L41/069 ,  H04L41/147

摘要： A network troubleshooting framework is described. In an implementation, a method includes generating a first estimation of network performance by a simulator based on network settings obtained from a network, estimating the new performance under an alternative setting by providing the alternative setting to the network simulation and observing the simulation output, repeating the procedure for other alternative settings, and suggesting the alternative setting that improves network performance.

摘要翻译： 描述了网络故障排除框架。 在实现中，一种方法包括基于从网络获得的网络设置来生成模拟器对网络性能的第一估计，通过向网络模拟提供备选设置并观察模拟输出，重复地在另一设置下估计新的性能 其他替代设置的过程，并提出改进网络性能的替代设置。

公开(公告)号：US20050169185A1

公开(公告)日：2005-08-04

申请号：US10881695

申请日：2004-06-30

申请人： Lili Qiu ,  Paramvir Bahl ,  Lidong Zhou ,  Ananth Rao

发明人： Lili Qiu ,  Paramvir Bahl ,  Lidong Zhou ,  Ananth Rao

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L41/145 ,  H04L41/12 ,  H04L41/142 ,  H04L43/08 ,  H04L43/0829

摘要： A network troubleshooting framework is described. In an implementation, a method includes detecting discrepancy in operation of a network by supplying data that describes the network to a network simulation so that the network simulation provides an estimation of network performance. A determination is made as to whether the estimation of network performance differs from observed network performance of the network. A root cause of the discrepancy id diagnosed by injecting one or more of a plurality of faults into the network simulation until the estimation of network performance approximates the observed network performance.

摘要翻译： 描述了网络故障排除框架。 在实现中，一种方法包括通过向网络仿真提供描述网络的数据来检测网络的操作差异，使得网络仿真提供对网络性能的估计。 确定网络性能的估计是否与网络的观察网络性能不同。 通过将多个故障中的一个或多个注入到网络仿真中诊断的差异id的根本原因，直到网络性能的估计近似于观察到的网络性能。

公开(公告)号：US20110122939A1

公开(公告)日：2011-05-26

申请号：US12952133

申请日：2010-11-22

申请人： Prasanna Ganesan ,  Sumankar Shankar ,  Ananth Rao

发明人： Prasanna Ganesan ,  Sumankar Shankar ,  Ananth Rao

IPC分类号： H04N11/02

CPC分类号： H04N19/194 ,  H04N19/115 ,  H04N19/152 ,  H04N19/164 ,  H04N19/177 ,  H04N19/61

摘要： A method performed by one or more processors for segmenting and encoding media content over a network. The media content is first partitioned into an ordered sequence of media segments. Each of the media segments is then encoded (i) at a first bit rate to generate a respective one of a first set of data segments, and (ii) at a second bit rate to generate a respective one of a second set of data segments, wherein data segments of the first set may be used interchangeably with data segments of the second set to facilitate continuous playback of the media content. A request for the media content is then received from another device in the network. In response, a respective one of the first set of data segments or the second set of data segments is selectively transmitted, for each of the media segments, based at least in part on a network bandwidth of the first device.

摘要翻译： 由一个或多个处理器执行的用于通过网络分割和编码媒体内容的方法。 媒体内容首先被划分成媒体段的有序序列。 然后每个媒体段以第一比特率被编码（i）以产生第一组数据段中的相应一个，以及（ii）以第二比特率生成第二组数据段中的相应一个 其中第一组的数据段可以与第二组的数据段互换使用，以促进媒体内容的连续重放。 然后从网络中的另一设备接收对媒体内容的请求。 作为响应，至少部分地基于第一设备的网络带宽，针对每个媒体段选择性地发送第一组数据段或第二组数据段中的相应一个。

公开(公告)号：US09313512B2

公开(公告)日：2016-04-12

申请号：US12952133

申请日：2010-11-22

申请人： Prasanna Ganesan ,  Sumankar Shankar ,  Ananth Rao

发明人： Prasanna Ganesan ,  Sumankar Shankar ,  Ananth Rao

IPC分类号： H04N19/194 ,  H04N19/115 ,  H04N19/61 ,  H04N19/152 ,  H04N19/164 ,  H04N19/177

CPC分类号： H04N19/194 ,  H04N19/115 ,  H04N19/152 ,  H04N19/164 ,  H04N19/177 ,  H04N19/61

摘要： A method performed by one or more processors for segmenting and encoding media content over a network. The media content is first partitioned into an ordered sequence of media segments. Each of the media segments is then encoded (i) at a first bit rate to generate a respective one of a first set of data segments, and (ii) at a second bit rate to generate a respective one of a second set of data segments, wherein data segments of the first set may be used interchangeably with data segments of the second set to facilitate continuous playback of the media content. A request for the media content is then received from another device in the network. In response, a respective one of the first set of data segments or the second set of data segments is selectively transmitted, for each of the media segments, based at least in part on a network bandwidth of the first device.

摘要翻译： 由一个或多个处理器执行的用于通过网络分割和编码媒体内容的方法。 媒体内容首先被划分成媒体段的有序序列。 然后每个媒体段以第一比特率被编码（i）以产生第一组数据段中的相应一个，以及（ii）以第二比特率生成第二组数据段中的相应一个 其中第一组的数据段可以与第二组的数据段互换使用，以促进媒体内容的连续重放。 然后从网络中的另一设备接收对媒体内容的请求。 作为响应，至少部分地基于第一设备的网络带宽，针对每个媒体段选择性地发送第一组数据段或第二组数据段中的相应一个。