公开(公告)号：US20120120314A1

公开(公告)日：2012-05-17

申请号：US12945250

申请日：2010-11-12

申请人： Chen-Yui Yang ,  Chee Ching ,  Paul Kahn ,  David H. Lu ,  Anthony Mark Srdar

发明人： Chen-Yui Yang ,  Chee Ching ,  Paul Kahn ,  David H. Lu ,  Anthony Mark Srdar

IPC分类号： H04N9/475

CPC分类号： H04N17/004 ,  H04N21/242 ,  H04N21/4307

摘要： A method of managing lip synchronization error in a multimedia content delivery network includes identifying a video packet and an audio packet associated with the video packet and determining a synchronization offset between the audio and video packets at a first monitoring point in the network. The audio and video packets are then detected at a second monitoring point in the network and a second synchronization offset is determined. When a delta between the first synchronization offset and the second synchronization offset exceeds a threshold, lip synchronization error information may be automatically recorded and/or reported to a service provider and corrective action may be taken if potential sources of the lip synchronization error are within the domain of the service provider. The video packet may be identified by a timestamp within the packet and the audio packet may be identified by audio data within the audio packet.

摘要翻译： 一种管理多媒体内容传送网络中的唇同步错误的方法，包括识别视频分组和与视频分组相关联的音频分组，并确定网络中第一个监控点处的音频和视频分组之间的同步偏移。 然后在网络中的第二监视点检测音频和视频数据包，并确定第二同步偏移。 当第一同步偏移和第二同步偏移之间的增量超过阈值时，唇部同步误差信息可以被自动记录和/或报告给服务提供商，并且如果唇部同步误差的潜在来源在 域的服务提供商。 视频分组可以由分组内的时间戳标识，音频分组可以由音频分组内的音频数据来识别。

公开(公告)号：US09565426B2

公开(公告)日：2017-02-07

申请号：US12945250

申请日：2010-11-12

申请人： Chen-Yui Yang ,  Chee Ching ,  Paul Kahn ,  David H. Lu ,  Anthony Mark Srdar

发明人： Chen-Yui Yang ,  Chee Ching ,  Paul Kahn ,  David H. Lu ,  Anthony Mark Srdar

IPC分类号： H04J3/06 ,  H04N17/00 ,  H04N21/242 ,  H04N21/43

CPC分类号： H04N17/004 ,  H04N21/242 ,  H04N21/4307

摘要： A method of managing lip synchronization error in a multimedia content delivery network includes identifying a video packet and an audio packet associated with the video packet and determining a synchronization offset between the audio and video packets at a first monitoring point in the network. The audio and video packets are then detected at a second monitoring point in the network and a second synchronization offset is determined. When a delta between the first synchronization offset and the second synchronization offset exceeds a threshold, lip synchronization error information may be automatically recorded and/or reported to a service provider and corrective action may be taken if potential sources of the lip synchronization error are within the domain of the service provider. The video packet may be identified by a timestamp within the packet and the audio packet may be identified by audio data within the audio packet.

摘要翻译： 一种管理多媒体内容传送网络中的唇同步错误的方法，包括识别视频分组和与视频分组相关联的音频分组，并确定网络中第一个监控点处的音频和视频分组之间的同步偏移。 然后在网络中的第二监视点检测音频和视频数据包，并确定第二同步偏移。 当第一同步偏移和第二同步偏移之间的增量超过阈值时，唇部同步误差信息可以被自动记录和/或报告给服务提供商，并且如果唇部同步误差的潜在来源在 域的服务提供商。 视频分组可以由分组内的时间戳标识，音频分组可以由音频分组内的音频数据来识别。

公开(公告)号：US08279771B2

公开(公告)日：2012-10-02

申请号：US12567312

申请日：2009-09-25

申请人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

发明人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

IPC分类号： H04L12/28

CPC分类号： H04L43/0811 ,  H04L41/12 ,  H04L43/0817 ,  H04L43/50 ,  H04L45/00 ,  H04L45/04

摘要： Example methods, apparatus and articles of manufacture to monitor communication paths in communication systems are disclosed. A disclosed example method includes identifying first and second inter-network communication links of a communication system, identifying a first plurality of router pairs associated with the first inter-network communication link, identifying a second plurality of router pairs associated with the second inter-network communication link, partitioning the first plurality of router pairs into a first subset of router pairs and a second subset of router pairs, partitioning the second plurality of router pairs into a third subset of router pairs and a fourth subset of router pairs, during a first time interval, performing first reachability tests for respective ones of the first and third subsets of router pairs, and during a second time interval, performing second reachability tests for respective ones of the second and fourth subsets of router pairs.

摘要翻译： 公开了用于监测通信系统中的通信路径的示例性方法，装置和制造品。 所公开的示例性方法包括识别通信系统的第一和第二网络间通信链路，识别与第一网络间通信链路相关联的第一多个路由器对，识别与第二网络间相关联的第二多个路由器对 通信链路，将所述第一多个路由器对划分成路由器对的第一子集和路由器对的第二子集，在所述第一子集中的所述第一组路由器对中，将所述第二多个路由器对划分为路由器对的第三子集和路由器对的第四子集， 时间间隔，对路由器对的第一和第三子集中的各个进行第一可达性测试，并且在第二时间间隔期间，为路由器对的第二和第四子集中的相应的一个进行第二可达性测试。

公开(公告)号：US20120269073A1

公开(公告)日：2012-10-25

申请号：US13538626

申请日：2012-06-29

申请人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

发明人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

IPC分类号： H04L12/26

CPC分类号： H04L43/0811 ,  H04L41/12 ,  H04L43/0817 ,  H04L43/50 ,  H04L45/00 ,  H04L45/04

摘要： Example methods, apparatus and articles of manufacture to monitor communication paths in communication systems are disclosed. An example method includes identifying links of a communication system, the links communicatively coupling routers, identifying communication paths in the communication system, each of the communication paths being routed via one or more of the links, testing the links during a first interval by testing at least a first portion of the communication paths, testing the links during the second interval by testing at least a second portion of the communication paths, changing the first portion of the communication paths to include at least one of the communication paths from the second portion of the communication paths such that testing the first portion of the communication paths and testing the second portion of the communication paths collectively test each of the links, and identifying a link failure based on the testing.

摘要翻译： 公开了用于监测通信系统中的通信路径的示例性方法，装置和制造品。 示例性方法包括识别通信系统的链路，通信地连接路由器的链路，识别通信系统中的通信路径，每个通信路径经由一个或多个链路路由，在第一间隔期间测试链路， 至少第一部分通信路径，通过测试通信路径的至少第二部分来测试第二间隔期间的链路，改变通信路径的第一部分以包括来自第二部分的通信路径中的至少一个， 通信路径使得测试通信路径的第一部分并测试通信路径的第二部分共同测试每个链路，并且基于测试来识别链路故障。

公开(公告)号：US08498203B2

公开(公告)日：2013-07-30

申请号：US13538626

申请日：2012-06-29

申请人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

发明人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

IPC分类号： G01R31/08 ,  H04L12/56

CPC分类号： H04L43/0811 ,  H04L41/12 ,  H04L43/0817 ,  H04L43/50 ,  H04L45/00 ,  H04L45/04

摘要： Example methods, apparatus and articles of manufacture to monitor communication paths in communication systems are disclosed. An example method includes identifying links of a communication system, the links communicatively coupling routers, identifying communication paths in the communication system, each of the communication paths being routed via one or more of the links, testing the links during a first interval by testing at least a first portion of the communication paths, testing the links during the second interval by testing at least a second portion of the communication paths, changing the first portion of the communication paths to include at least one of the communication paths from the second portion of the communication paths such that testing the first portion of the communication paths and testing the second portion of the communication paths collectively test each of the links, and identifying a link failure based on the testing.

摘要翻译： 公开了用于监测通信系统中的通信路径的示例性方法，装置和制造品。 示例性方法包括识别通信系统的链路，通信地连接路由器的链路，识别通信系统中的通信路径，每个通信路径经由一个或多个链路路由，在第一间隔期间测试链路， 至少第一部分通信路径，通过测试通信路径的至少第二部分来测试第二间隔期间的链路，改变通信路径的第一部分以包括来自第二部分的通信路径中的至少一个， 通信路径使得测试通信路径的第一部分并测试通信路径的第二部分共同测试每个链路，并且基于测试来识别链路故障。

公开(公告)号：US20110075567A1

公开(公告)日：2011-03-31

申请号：US12567312

申请日：2009-09-25

申请人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

发明人： Zhijian Xu ,  Chee Ching ,  Kevin D'Souza ,  Joseph Lu ,  David H. Lu ,  Chen-Yui Yang ,  Leah Li Zhang

IPC分类号： H04L12/26 ,  H04L12/28

CPC分类号： H04L43/0811 ,  H04L41/12 ,  H04L43/0817 ,  H04L43/50 ,  H04L45/00 ,  H04L45/04

摘要： Example methods, apparatus and articles of manufacture to monitor communication paths in communication systems are disclosed. A disclosed example method includes identifying first and second inter-network communication links of a communication system, identifying a first plurality of router pairs associated with the first inter-network communication link, identifying a second plurality of router pairs associated with the second inter-network communication link, partitioning the first plurality of router pairs into a first subset of router pairs and a second subset of router pairs, partitioning the second plurality of router pairs into a third subset of router pairs and a fourth subset of router pairs, during a first time interval, performing first reachability tests for respective ones of the first and third subsets of router pairs, and during a second time interval, performing second reachability tests for respective ones of the second and fourth subsets of router pairs.

摘要翻译： 公开了用于监测通信系统中的通信路径的示例性方法，装置和制造品。 所公开的示例性方法包括识别通信系统的第一和第二网络间通信链路，识别与第一网络间通信链路相关联的第一多个路由器对，识别与第二网络间相关联的第二多个路由器对 通信链路，将所述第一多个路由器对划分成路由器对的第一子集和路由器对的第二子集，在所述第一子集中的所述第一组路由器对中，将所述第二多个路由器对划分为路由器对的第三子集和路由器对的第四子集， 时间间隔，对路由器对的第一和第三子集中的各个进行第一可达性测试，并且在第二时间间隔期间，为路由器对的第二和第四子集中的相应的一个进行第二可达性测试。

公开(公告)号：US20100265832A1

公开(公告)日：2010-10-21

申请号：US12424910

申请日：2009-04-16

申请人： PARITOSH BAJPAY ,  Chee Ching ,  Scott Corbin ,  Luis Figueroa ,  Paul D. Gilbert ,  Monowar Hossain ,  Thiru Ilango ,  David H. Lu ,  Peter R. Wanda ,  Chen-Yui Yang

发明人： PARITOSH BAJPAY ,  Chee Ching ,  Scott Corbin ,  Luis Figueroa ,  Paul D. Gilbert ,  Monowar Hossain ,  Thiru Ilango ,  David H. Lu ,  Peter R. Wanda ,  Chen-Yui Yang

IPC分类号： H04J1/16

CPC分类号： H04L41/5074 ,  H04L41/0631 ,  H04L41/083 ,  H04L41/5009

摘要： A method and an apparatus for detection and prevention of a slow response on a network are disclosed. For example, the method selects a router automatically for testing in response to a ticket indicating a slow response, and performs a diagnostic test on the router, wherein the diagnostic test comprises at least one of: a protocol diagnostic test, a circuit diagnostic test or, a congestion diagnostic test. The method then performs at least one remedial step to address a root cause that is identified by the diagnostic test, wherein the root cause is associated with the slow response.

摘要翻译： 公开了一种用于检测和防止网络上的慢响应的方法和装置。 例如，该方法响应于指示慢速响应的票据自动选择路由器进行测试，并对路由器进行诊断测试，其中诊断测试包括以下至少一个：协议诊断测试，电路诊断测试或 ，拥塞诊断测试。 该方法然后执行至少一个补救步骤来解决由诊断测试识别的根本原因，其中根本原因与慢响应相关联。

公开(公告)号：US08171134B2

公开(公告)日：2012-05-01

申请号：US12406296

申请日：2009-03-18

申请人： Min-Hsuan Chen ,  Li-Jin Chung ,  Chee Ching ,  David H. Lu

发明人： Min-Hsuan Chen ,  Li-Jin Chung ,  Chee Ching ,  David H. Lu

IPC分类号： G06F15/173

CPC分类号： H04L41/0681 ,  H04L41/0213 ,  H04L41/147 ,  H04L43/0817 ,  H04L43/10

摘要： Methods and apparatus to characterize and predict network health status are presented. A particular method of characterizing and predicting a health status of a network node includes receiving a plurality of report values associated with the network node, where each report value is one of alert and normal, and where each report value is received at a corresponding time. The method includes calculating a current report weight associated with a current report value received at a current time. When a first previous report value was received at a first previous time before the current time, the current report weight is calculated based at least partially on the current report value and at least partially on a first previous report weight associated with the first previous value. The method includes storing the current report weight at a memory device.

摘要翻译： 介绍了网络健康状况的特点和预测方法和设备。 表征和预测网络节点的健康状况的特定方法包括接收与网络节点相关联的多个报告值，其中每个报告值是警报和正常之一，并且其中每个报告值在相应的时间被接收。 该方法包括计算与当前时间接收的当前报告值相关联的当前报告权重。 当在当前时间之前的第一个先前时间收到第一上一个报告值时，至少部分地基于当前报告值并且至少部分地基于与第一先前值相关联的第一先前报告权重来计算当前报告权重。 该方法包括将当前报告权重存储在存储设备中。

公开(公告)号：US20100238814A1

公开(公告)日：2010-09-23

申请号：US12406296

申请日：2009-03-18

申请人： Min-Hsuan Chen ,  Li-Jin Chung ,  Chee Ching ,  David H. Lu

发明人： Min-Hsuan Chen ,  Li-Jin Chung ,  Chee Ching ,  David H. Lu

IPC分类号： H04L12/26

CPC分类号： H04L41/0681 ,  H04L41/0213 ,  H04L41/147 ,  H04L43/0817 ,  H04L43/10

摘要： Methods and apparatus to characterize and predict network health status are presented. A particular method of characterizing and predicting a health status of a network node includes receiving a plurality of report values associated with the network node, where each report value is one of alert and normal, and where each report value is received at a corresponding time. The method includes calculating a current report weight associated with a current report value received at a current time. When a first previous report value was received at a first previous time before the current time, the current report weight is calculated based at least partially on the current report value and at least partially on a first previous report weight associated with the first previous value. The method includes storing the current report weight at a memory device.

摘要翻译： 介绍了网络健康状况的特点和预测方法和设备。 表征和预测网络节点的健康状况的特定方法包括接收与网络节点相关联的多个报告值，其中每个报告值是警报和正常之一，并且其中每个报告值在相应的时间被接收。 该方法包括计算与当前时间接收的当前报告值相关联的当前报告权重。 当在当前时间之前的第一个先前时间收到第一上一个报告值时，至少部分地基于当前报告值并且至少部分地基于与第一先前值相关联的第一先前报告权重来计算当前报告权重。 该方法包括将当前报告权重存储在存储设备中。

公开(公告)号：US5864611A

公开(公告)日：1999-01-26

申请号：US927132

申请日：1997-09-02

申请人： Chee Ching ,  Salomon Leo Ehrenreich ,  Muralidharan Kodialam ,  Donald Jay Mintz

发明人： Chee Ching ,  Salomon Leo Ehrenreich ,  Muralidharan Kodialam ,  Donald Jay Mintz

IPC分类号： H04M15/00

CPC分类号： H04M15/00

摘要： A system and method for estimating the traffic rates of large traffic sources is provided. A class of a most recently selected address is compared to the contents of a register. If the class is the same as the contents of the register, a first counter is incremented; otherwise, the class is loaded into the register and the first counter is initialized. A class of a new most recently selected address is then obtained and the above process repeated. If the count of the first counter reaches a predetermined threshold, a threshold counter associated with the class is incremented and the first counter and register are reset. A different threshold counter is associated with each different class. After a predetermined time period, the traffic rate for a class may be computed from the count of the threshold counter associated with the class.

摘要翻译： 提供了一种用于估计大流量源的流量速率的系统和方法。 将最近选择的地址的类与寄存器的内容进行比较。 如果类与寄存器的内容相同，则第一个计数器递增; 否则，该类被加载到寄存器中，并且第一个计数器被初始化。 然后获得一个新的最新选择的地址，并重复上述过程。 如果第一计数器的计数达到预定阈值，则与该类相关联的阈值计数器递增，并且第一计数器和寄存器被复位。 不同的阈值计数器与每个不同的类相关联。 在预定时间段之后，可以根据与该类相关联的阈值计数器的计数来计算类的业务速率。