公开(公告)号：US07698460B2

公开(公告)日：2010-04-13

申请号：US11421991

申请日：2006-06-02

申请人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  Yongqiang Xiong

发明人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  Yongqiang Xiong

IPC分类号： G06F15/16

CPC分类号： H04L61/2567 ,  H04L29/12509 ,  H04L43/0852 ,  H04L43/50 ,  H04L47/10

摘要： A peer-to-peer (P2P) probing/network quality of service (QoS) analysis system utilizes a UDP-based probing tool for determining latency, bandwidth, and packet loss ratio between peers in a network. The probing tool enables network QoS probing between peers that connect through a network address translator. The list of peers to probe is provided by a connection server based on prior probe results and an estimate of the network condition. The list includes those peers which are predicted to have the best QoS with the requesting peer. Once the list is obtained, the requesting peer probes the actual QoS to each peer on the list, and returns these results to the connection server. P2P probing in parallel using a modified packet-pair scheme is utilized. If anomalous results are obtained, a hop-by-hop probing scheme is utilized to determine the QoS of each link. In such a scheme, differential destination measurement is utilized.

摘要翻译： 对等（P2P）探测/网络服务质量（QoS）分析系统利用基于UDP的探测工具来确定网络中对等体之间的延迟，带宽和丢包率。 探测工具可以在通过网络地址转换器连接的对等体之间实现网络QoS探测。 探测对等体的列表由连接服务器根据先前的探测结果和网络条件的估计提供。 该列表包括被预测与请求对等体具有最佳QoS的那些对等体。 一旦获得了列表，请求对等体将实际的QoS探测到列表上的每个对等体，并将这些结果返回给连接服务器。 利用改进的分组对方案并行的P2P探测。 如果获得异常结果，则使用逐跳探测方案来确定每个链路的QoS。 在这种方案中，利用差分目的地测量。

公开(公告)号：US20060209701A1

公开(公告)日：2006-09-21

申请号：US11421991

申请日：2006-06-02

申请人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  YongQiang Xiong

发明人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  YongQiang Xiong

IPC分类号： H04J3/14 ,  H04J1/16 ,  H04B1/44

CPC分类号： H04L61/2567 ,  H04L29/12509 ,  H04L43/0852 ,  H04L43/50 ,  H04L47/10

摘要： A peer-to-peer (P2P) probing/network quality of service (QoS) analysis system utilizes a UDP-based probing tool for determining latency, bandwidth, and packet loss ratio between peers in a network. The probing tool enables network QoS probing between peers that connect through a network address translator. The list of peers to probe is provided by a connection server based on prior probe results and an estimate of the network condition. The list includes those peers which are predicted to have the best QoS with the requesting peer. Once the list is obtained, the requesting peer probes the actual QoS to each peer on the list, and returns these results to the connection server. P2P probing in parallel using a modified packet-pair scheme is utilized. If anomalous results are obtained, a hop-by-hop probing scheme is utilized to determine the QoS of each link. In such a scheme, differential destination measurement is utilized.

摘要翻译： 对等（P2P）探测/网络服务质量（QoS）分析系统利用基于UDP的探测工具来确定网络中对等体之间的延迟，带宽和丢包率。 探测工具可以在通过网络地址转换器连接的对等体之间实现网络QoS探测。 探测对等体的列表由连接服务器根据先前的探测结果和网络条件的估计提供。 该列表包括被预测与请求对等体具有最佳QoS的那些对等体。 一旦获得了列表，请求对等体将实际的QoS探测到列表上的每个对等体，并将这些结果返回给连接服务器。 利用改进的分组对方案并行的P2P探测。 如果获得异常结果，则使用逐跳探测方案来确定每个链路的QoS。 在这种方案中，利用差分目的地测量。

公开(公告)号：US07133368B2

公开(公告)日：2006-11-07

申请号：US10061462

申请日：2002-02-01

申请人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  YongQiang Xiong

发明人： Qian Zhang ,  Wenwu Zhu ,  XinYan Zhang ,  YongQiang Xiong

IPC分类号： G06F11/00

CPC分类号： H04L61/2567 ,  H04L29/12509 ,  H04L43/0852 ,  H04L43/50 ,  H04L47/10

摘要： A peer-to-peer (P2P) probing/network quality of service (QoS) analysis system utilizes a UDP-based probing tool for determining latency, bandwidth, and packet loss ratio between peers in a network. The probing tool enables network QoS probing between peers that connect through a network address translator. The list of peers to probe is provided by a connection server based on prior probe results and an estimate of the network condition. The list includes those peers which are predicted to have the best QoS with the requesting peer. Once the list is obtained, the requesting peer probes the actual QoS to each peer on the list, and returns these results to the connection server. P2P probing in parallel using a modified packet-pair scheme is utilized. If anomalous results are obtained, a hop-by-hop probing scheme is utilized to determine the QoS of each link. In such a scheme, differential destination measurement is utilized.

摘要翻译： 对等（P2P）探测/网络服务质量（QoS）分析系统利用基于UDP的探测工具来确定网络中对等体之间的延迟，带宽和丢包率。 探测工具可以在通过网络地址转换器连接的对等体之间实现网络QoS探测。 探测对等体的列表由连接服务器根据先前的探测结果和网络条件的估计提供。 该列表包括被预测与请求对等体具有最佳QoS的那些对等体。 一旦获得了列表，请求对等体将实际的QoS探测到列表上的每个对等体，并将这些结果返回给连接服务器。 利用改进的分组对方案并行的P2P探测。 如果获得异常结果，则使用逐跳探测方案来确定每个链路的QoS。 在这种方案中，利用差分目的地测量。

公开(公告)号：US07194002B2

公开(公告)日：2007-03-20

申请号：US10061481

申请日：2002-02-01

申请人： Qian Zhang ,  Wenwu Zhu ,  Jiangchuan Liu ,  XinYan Zhang

发明人： Qian Zhang ,  Wenwu Zhu ,  Jiangchuan Liu ,  XinYan Zhang

IPC分类号： H04L12/28

CPC分类号： H04L43/12 ,  H04L12/185 ,  H04L43/0852 ,  H04L43/0864

摘要： A network performance (e.g., latency and bandwidth) measurement infrastructure for large scale networks based on self-organized probing groups of devices. Each group of devices has a lead device that measures network characteristics, and then shares the measurement information with other devices. This grouping method reduces the amount of network bandwidth needed for adequate measurements, while still providing necessary information to individual devices. The system utilizes a novel multicast-based algorithm that is adopted for both intra-group and inter-group performance measurement. The measurement groups (MeGroups) are dynamic and self-forming, and use a set of heuristic algorithms to optimize the dynamic groupings.

摘要翻译： 基于设备的自组织探测组的大规模网络的网络性能（例如，延迟和带宽）测量基础设施。 每组设备都具有测量网络特性的引导设备，然后与其他设备共享测量信息。 该分组方法减少了足够测量所需的网络带宽量，同时仍然向各个设备提供必要的信息。 该系统采用基于组播的组播算法，用于组内和组间性能测量。 测量组（MeGroups）是动态和自我形成的，并且使用一组启发式算法来优化动态分组。