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公开(公告)号：US08923142B2
公开(公告)日：2014-12-30
申请号：US12530362
申请日：2007-03-08
CPC分类号： H04L12/2697 , H04L41/0896 , H04L41/5003 , H04L41/5009 , H04L43/0864 , H04L43/106 , H04L43/50
摘要： The present invention relates to methods and arrangements to measure network performance. The method comprises the following steps: —Transmitting via a communication network (IP) payload packets (21-24) from a sending node (GGSN/A) to a receiving node (GGSN/B). —Generating at the sending node (GGSN/A) a send specification (s21-s24, sid21-sid24) for each of at least one selected packet (21-24) of the transmitted payload packets (21-24). —Generating at the receiving node (GGSN/B), a receive specification (r21-r22, rid21-rid22, siz21-siz22) for each of at least one selected packet (21-22) of the transmitted payload packets (21-24). —Bringing together generated send specifications (s21-s24, sid21-sid24) and generated receive specifications (r21-r22, rid21-rid22, siz21-siz22). —Estimating network performance by utilizing corresponding specifications (s11-s12, r11-r12, siz21-siz22) of the brought together specifications.
摘要翻译： 本发明涉及测量网络性能的方法和装置。 该方法包括以下步骤： - 经由通信网络（IP）有效载荷分组（21-24）从发送节点（GGSN / A）发送到接收节点（GGSN / B）。 - 在发送的有效载荷分组（21-24）的至少一个所选择的分组（21-24）中的每个发送节点（GGSN / A）生成发送规范（s21-s24，sid21-sid24）。 - 在所述接收节点（GGSN / B）处生成所发送的有效载荷分组（21-24）中的至少一个所选分组（21-22）中的每一个的接收规范（r21-r22，rid21-rid22，siz21-siz22） ）。 - 生成发送规范（s21-s24，sid21-sid24）和生成的接收规范（r21-r22，rid21-rid22，siz21-siz22）。 - 通过使用相应的规格（s11-s12，r11-r12，siz21-siz22）来估计网络性能。
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公开(公告)号：US08737216B2
公开(公告)日：2014-05-27
申请号：US12595565
申请日：2007-04-12
申请人： Christofer Flinta , Svante Ekelin , Bob Melander , Jan-Erik Mångs
发明人： Christofer Flinta , Svante Ekelin , Bob Melander , Jan-Erik Mångs
IPC分类号： H04L12/24
CPC分类号： H04L43/10 , H04L43/106 , H04W24/00
摘要： A method of measuring network performance is disclosed. A payload packet is transmitted from a sending node to a receiving node via a communication network. A reference packet is transmitted to the receiving node in connection with sending of the payload packet. Receive information related to the payload packet and to the reference packet is generated, at the receiving node. Send information related to the payload packet and to the reference packet is received, by the receiving node. Network performance is estimated by utilizing the send and receive information.
摘要翻译： 公开了一种网络性能测量方法。 有效载荷分组经由通信网络从发送节点发送到接收节点。 参考分组与发送有效载荷分组一起被发送到接收节点。 在接收节点处生成与有效载荷分组和参考分组相关的信息。 由接收节点接收与有效载荷分组相关的信息和参考分组的信息。 通过使用发送和接收信息来估计网络性能。
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3.发明申请METHOD, ARRANGEMENT AND SYSTEM FOR MONITORING A DATA PATH IN A COMMUNICATION NETWORK 有权用于监控通信网络中的数据路径的方法，装置和系统公开(公告)号：US20110176429A1
公开(公告)日：2011-07-21
申请号：US13120092
申请日：2008-09-22
IPC分类号： H04L12/26
CPC分类号： H04L43/10 , H04L43/0852 , H04L43/0882 , H04L43/50
摘要： A probing method, arrangement, and system for estimating a condition, such as available bandwidth, of a data path in a communication network including multiple nodes are described. A probe-packet sender node transmits probe packets with a sent inter-packet separation and a time-to-live towards an intermediate node. Control message packets are generated by the intermediate node when the time-to-live expires. The probe-packet sender node receives the control message packets and calculates a received inter-packet separation. An estimate of the data path condition can be generated based on the sent inter-packet separation and the received inter-packet separation.
摘要翻译： 描述了用于估计包括多个节点的通信网络中的数据路径的状况（例如可用带宽）的探测方法，布置和系统。 探测分组发送器节点发送具有发送的分组间分离和到中间节点的生存时间的探测分组。 当生存期到期时，中间节点产生控制消息分组。 探测分组发送方节点接收控制消息分组，并计算接收到的分组间分离。 可以基于发送的分组间分离和接收到的分组间分离来生成数据路径条件的估计。
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4.发明申请公开(公告)号：US20110090811A1
公开(公告)日：2011-04-21
申请号：US12933875
申请日：2009-03-23
申请人： Svante Ekelin , Erik Bergfeldt , Christofer Flinta , Andreas Johnsson , Jan-Erik Mångs , Bob Melander
发明人： Svante Ekelin , Erik Bergfeldt , Christofer Flinta , Andreas Johnsson , Jan-Erik Mångs , Bob Melander
IPC分类号： H04L12/26
CPC分类号： H04L41/0896 , H04L41/0206 , H04L43/0882 , H04L43/10 , H04L43/103 , H04L43/50
摘要： A system and method for determining end-to-end available bandwidth of a path in a packet-switched communication network. A multi-rate packet chirp injector injects probe traffic packets at different probing rates, u, into the network utilizing a probe chirp. A receiver samples time separation of the probe traffic packets to generate time-separation samples, which are used to calculate relative inter-packet separation strain, ε, samples at different probing rates. An Expectation-Maximization, EM, analyzer utilizes an EM algorithm to identify useful strain ε samples and to estimate parameters of a line l2 representing a direct linear relationship between the probing rate and the inter-packet separation strain ε at probing rates greater than a break point. A filter such as, for example, a Kalman filter then determines the available bandwidth of the network path based on the estimated parameters of the line l2.
摘要翻译： 一种用于确定分组交换通信网络中的路径的端到端可用带宽的系统和方法。 多速率数据包啁啾注射器以不同的探测速率u将探头业务数据包以探针啁啾方式注入网络。 接收机采样时间分离探测业务分组以产生时间间隔采样，其用于计算不同探测速率下的相对分组间分离应变和样本。 期望最大化，EM分析仪利用EM算法来识别有用的应变＆egr; 样本并且估计表示探测速率和分组间分离应变之间的直接线性关系的线l2的参数; 探测速率大于断点。 然后，诸如卡尔曼滤波器的滤波器然后基于线路12的估计参数确定网络路径的可用带宽。
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5.发明授权公开(公告)号：US08503320B2
公开(公告)日：2013-08-06
申请号：US12933875
申请日：2009-03-23
申请人： Svante Ekelin , Erik Bergfeldt , Christofer Flinta , Andreas Johnsson , Jan-Erik MÅngs , Bob Melander
发明人： Svante Ekelin , Erik Bergfeldt , Christofer Flinta , Andreas Johnsson , Jan-Erik MÅngs , Bob Melander
IPC分类号： G08C15/00
CPC分类号： H04L41/0896 , H04L41/0206 , H04L43/0882 , H04L43/10 , H04L43/103 , H04L43/50
摘要： A system and method for determining end-to-end available bandwidth of a path in a packet-switched communication network. A multi-rate packet chirp injector injects probe traffic packets at different probing rates, u, into the network utilizing a probe chirp. A receiver samples time separation of the probe traffic packets to generate time-separation samples, which are used to calculate relative inter-packet separation strain, ε, samples at different probing rates. An Expectation-Maximization, EM, analyzer utilizes an EM algorithm to identify useful strain ε samples and to estimate parameters of a line l2 representing a direct linear relationship between the probing rate and the inter-packet separation strain ε at probing rates greater than a break point. A filter such as, for example, a Kalman filter then determines the available bandwidth of the network path based on the estimated parameters of the line l2.
摘要翻译： 一种用于确定分组交换通信网络中的路径的端到端可用带宽的系统和方法。 多速率数据包啁啾注射器以不同的探测速率u将探头业务数据包以探针啁啾方式注入网络。 接收机采样时间分离探测业务分组以产生时间间隔采样，其用于计算相对分组间分离应变，ε，不同探测速率的样本。 期望最大化EM分析仪利用EM算法来识别有用的应变ε样本，并且估计线12的参数，表示探测速率和分组间分离应变ε之间的直接线性关系，探测速率大于断点 点。 然后，诸如卡尔曼滤波器的滤波器然后基于线路12的估计参数确定网络路径的可用带宽。
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公开(公告)号：US20100150009A1
公开(公告)日：2010-06-17
申请号：US12530362
申请日：2007-03-08
申请人： Jan-Erik Mångs , Svante Ekelin , Bob Melander , Christofer Flinta
发明人： Jan-Erik Mångs , Svante Ekelin , Bob Melander , Christofer Flinta
IPC分类号： H04L12/26
CPC分类号： H04L12/2697 , H04L41/0896 , H04L41/5003 , H04L41/5009 , H04L43/0864 , H04L43/106 , H04L43/50
摘要： The present invention relates to methods and arrangements to measure network performance. The method comprises the following steps:—Transmitting via a communication network (IP) payload packets (21-24) from a sending node (GGSN/A) to a receiving node (GGSN/B).—Generating at the sending node (GGSN/A) a send specification (s21-s24, sid21-sid24) for each of at least one selected packet (21-24) of the transmitted payload packets (21-24).—Generating at the receiving node (GGSN/B), a receive specification (r21-r22, rid21-rid22, siz21-siz22) for each of at least one selected packet (21-22) of the transmitted payload packets (21-24).—Bringing together generated send specifications (s21-s24, sid21-sid24) and generated receive specifications (r21-r22, rid21-rid22, siz21-siz22).—Estimating network performance by utilizing corresponding specifications (s11-s12, r11-r12, siz21-siz22) of the brought together specifications.
摘要翻译： 本发明涉及测量网络性能的方法和装置。 该方法包括以下步骤： - 经由通信网络（IP）有效载荷分组（21-24）从发送节点（GGSN / A）发送到接收节点（GGSN / B）。 - 在发送节点（GGSN 对于所发送的有效载荷分组（21-24）的至少一个所选分组（21-24）中的每一个的发送规范（s21-s24，sid21-sid24） - 在接收节点（GGSN / B） ，用于发送的有效载荷分组（21-24）中的至少一个所选分组（21-22）中的每一个的接收规范（r21-r22，rid21-rid22，siz21-siz22）。 - 将生成的发送规范（s21- s24，sid21-sid24）和生成的接收规格（r21-r22，rid21-rid22，siz21-siz22） - 通过使用相关规格（s11-s12，r11-r12，siz21-siz22）来估计网络性能 。
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7.发明授权Method, arrangement and system for monitoring a data path in a communication network 有权用于监视通信网络中的数据路径的方法，布置和系统公开(公告)号：US08687507B2
公开(公告)日：2014-04-01
申请号：US13120092
申请日：2008-09-22
IPC分类号： H04L12/26
CPC分类号： H04L43/10 , H04L43/0852 , H04L43/0882 , H04L43/50
摘要： A probing method, arrangement, and system for estimating a condition, such as available bandwidth, of a data path in a communication network including multiple nodes are described. A probe-packet sender node transmits probe packets with a sent inter-packet separation and a time-to-live towards an intermediate node. Control message packets are generated by the intermediate node when the time-to-live expires. The probe-packet sender node receives the control message packets and calculates a received inter-packet separation. An estimate of the data path condition can be generated based on the sent inter-packet separation and the received inter-packet separation.
摘要翻译： 描述了用于估计包括多个节点的通信网络中的数据路径的状况（例如可用带宽）的探测方法，布置和系统。 探测分组发送器节点发送具有发送的分组间分离和到中间节点的生存时间的探测分组。 当生存期到期时，中间节点产生控制消息分组。 探测分组发送方节点接收控制消息分组，并计算接收到的分组间分离。 可以基于发送的分组间分离和接收到的分组间分离来生成数据路径条件的估计。
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公开(公告)号：US20110317568A1
公开(公告)日：2011-12-29
申请号：US12595565
申请日：2007-04-12
申请人： Christofer Flinta , Svante Ekelin , Bob Melander , Jan-Erik Mångs
发明人： Christofer Flinta , Svante Ekelin , Bob Melander , Jan-Erik Mångs
IPC分类号： H04L12/26
CPC分类号： H04L43/10 , H04L43/106 , H04W24/00
摘要： A method of measuring network performance is disclosed. A payload packet is transmitted from a sending node to a receiving node via a communication network. A reference packet is transmitted to the receiving node in connection with sending of the payload packet. Receive information related to the payload packet and to the reference packet is generated, at the receiving node. Send information related to the payload packet and to the reference packet is received, by the receiving node. Network performance is estimated by utilizing the send and receive information.
摘要翻译： 公开了一种网络性能测量方法。 有效载荷分组经由通信网络从发送节点发送到接收节点。 参考分组与发送有效载荷分组一起被发送到接收节点。 在接收节点处生成与有效载荷分组和参考分组相关的信息。 由接收节点接收与有效载荷分组相关的信息和参考分组的信息。 通过使用发送和接收信息来估计网络性能。
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公开(公告)号：US20100333160A1
公开(公告)日：2010-12-30
申请号：US12867675
申请日：2008-02-14
申请人： Christofer Flinta , Svante Ekelin , Jan-Erik Mangs , Bob Melander
发明人： Christofer Flinta , Svante Ekelin , Jan-Erik Mangs , Bob Melander
IPC分类号： H04N7/173
CPC分类号： H04L12/1881 , H04L12/185 , H04N21/2402 , H04N21/2408 , H04N21/44209 , H04N21/6125 , H04N21/6332 , H04N21/6405 , H04N21/654
摘要： The present invention relates to methods and arrangements to optimize bandwidth usage in a Multicast Services Control System (MSCS) for digital information transport. The system comprises a service provider (Server) and service receivers (STB1-STB5) able to receive multicast streams from the service provider along multicast trees in an IP network (A/MNW). The method comprises the following steps: —A multicast join is performed by the service receivers to a multicast group associated with the service of interest provided by the service provider. —Bandwidth is measured on paths in a joined multicast tree. —Each of the service receivers (STB1-STB5) join an optimal multicast group (D1, D2, D3), which joining is based on the measurements.
摘要翻译： 本发明涉及用于优化用于数字信息传输的组播服务控制系统（MSCS）中的带宽使用的方法和装置。 该系统包括能够通过IP网络（A / MNW）中的多播树从服务提供商接收多播流的服务提供商（Server）和服务接收器（STB1-STB5）。 该方法包括以下步骤： - 服务接收机对由服务提供商提供的感兴趣的服务相关联的多播组进行组播加入。 - 在加入的多播树中的路径上测量宽度。 - 每个服务接收器（STB1-STB5）加入一个最佳组播组（D1，D2，D3），该组合基于测量。
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10.发明授权Systems and methods for measuring available capacity and tight link capacity of IP paths from a single endpoint 有权从单个端点测量IP路径的可用容量和紧密链路容量的系统和方法公开(公告)号：US09094315B2
公开(公告)日：2015-07-28
申请号：US13141901
申请日：2010-11-18
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04L12/28 , H04L12/54 , G06F15/173
CPC分类号： H04L43/10 , H04L43/0882
摘要： According to one exemplary embodiment, a method for determining the forward and reverse available capacity or tight link capacity of an IP path from a single endpoint includes the steps of: transmitting, from a source IP endpoint node toward a destination IP endpoint node, a forward packet train including a first plurality of IP test packets over the forward IP path; and receiving, at the source IP endpoint node, a corresponding reverse packet train from the destination IP endpoint node, the reverse packet train including a second plurality of IP test packets over the reverse IP path each of which correspond to a respective one of the first plurality of IP test packets. For those IP path capacity measurements embodiments which are TWAMP-based, no changes are needed to the TWAMP control protocol, e.g., since exemplary embodiments make use of padding octets to transfer additional information which can be used for available IP path capacity and tight IP link capacity calculations.
摘要翻译： 根据一个示例性实施例，用于确定来自单个端点的IP路径的正向和反向可用容量或紧密链路容量的方法包括以下步骤：从源IP端点节点向目的地IP端点节点发送前向 分组串包括在前向IP路径上的第一多个IP测试分组; 并且在所述源IP端点节点处从所述目的地IP端点节点接收相应的反向分组串，所述反向分组串在所述反向IP路径上包括第二多个IP测试分组，每个IP测试分组对应于所述第一 多个IP测试包。 对于基于TWAMP的那些IP路径容量测量实施例，TWAMP控制协议不需要改变，例如，由于示例性实施例利用填充八位字节来传送可用于可用IP路径容量和紧密IP链路的附加信息 容量计算。
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