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。

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。

公开(公告)号：US08687507B2

公开(公告)日：2014-04-01

申请号：US13120092

申请日：2008-09-22

申请人： Andreas Johnsson ,  Svante Ekelin ,  Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

发明人： Andreas Johnsson ,  Svante Ekelin ,  Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

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。

公开(公告)号：US20110176429A1

公开(公告)日：2011-07-21

申请号：US13120092

申请日：2008-09-22

申请人： Andreas Johnsson ,  Svante Ekelin ,  Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

发明人： Andreas Johnsson ,  Svante Ekelin ,  Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

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。

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。

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。

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 。

公开(公告)号：US08917599B2

公开(公告)日：2014-12-23

申请号：US13133762

申请日：2008-12-10

申请人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

发明人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

IPC分类号： H04L12/24 ,  H04L12/801 ,  H04L12/851 ,  H04L12/825 ,  H04L12/841 ,  H04L12/861

CPC分类号： H04L47/10 ,  H04L47/2441 ,  H04L47/25 ,  H04L47/28 ,  H04L49/90

摘要： The present application discloses systems and methods for adapting the rate at which the packets are transmitted. In one embodiment, the method includes: (a) receiving a packet; (b) determining whether the packet is high priority packet or a low priority packet; and (c) determining whether a transmission rate value, which defines the maximum rate or maximum average rate at which the node should transmit the low priority packets, should be adjusted, wherein the determination is based, at least in part, on whether at least some number of high priority packets and/or bits was received since a point in time; and (d) adjusting the transmission rate value if it is determined in step (c) that the transmission rate value should be adjusted.

摘要翻译： 本申请公开了用于调整分组被传输的速率的系统和方法。 在一个实施例中，该方法包括：（a）接收分组; （b）确定分组是高优先级分组还是低优先级分组; 以及（c）确定是否应调整定义节点应传送低优先级分组的最大速率或最大平均速率的传输速率值，其中所述确定至少部分地基于至少是否至少 从一个时间点开始接收一些数量的高优先级分组和/或比特; 以及（d）如果在步骤（c）中确定传输速率值应被调整，则调整传输速率值。

公开(公告)号：US09264403B2

公开(公告)日：2016-02-16

申请号：US13122755

申请日：2008-10-09

申请人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

发明人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

IPC分类号： H04L29/06 ,  H04L29/12 ,  G06F9/455 ,  H04L12/46

CPC分类号： H04L63/0272 ,  G06F9/455 ,  H04L12/4633 ,  H04L61/2015

摘要： The invention relates to a visualization platform (9) arranged to provide at least one virtual operating system instance (9A, . . . , 9N) to at least one remote network (3) over a packet-based communication network (5). The visualization platform is characterized in that it comprises at least one first termination point (4b) of a virtual private network VPN tunnel (10) which enables the establishment of at least one VPN tunnel between said at least one first termination point and at least one second termination point (4a) in said at least one remote network over said packet-based communication network; and in that it is arranged to map said at least one virtual operating system instance to said at least one first termination point of said at least one VPN tunnel. The invention also relates to a method for virtualization and a computer program product.

摘要翻译： 本发明涉及一种被设置为通过基于分组的通信网络（5）向至少一个远程网络（3）提供至少一个虚拟操作系统实例（9A，...，9N）的可视化平台（9）。 可视化平台的特征在于它包括虚拟专用网络VPN隧道（10）的至少一个第一终止点（4b），其能够在所述至少一个第一终止点和至少一个第一终端点之间建立至少一个VPN隧道 通过所述基于分组的通信网络在所述至少一个远程网络中的第二终止点（4a）; 并且其中被布置为将所述至少一个虚拟操作系统实例映射到所述至少一个VPN隧道的所述至少一个第一终止点。 本发明还涉及虚拟化方法和计算机程序产品。

公开(公告)号：US20110292800A1

公开(公告)日：2011-12-01

申请号：US13133762

申请日：2008-12-10

申请人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

发明人： Christofer Flinta ,  Jan-Erik Mångs ,  Bob Melander

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L47/2441 ,  H04L47/25 ,  H04L47/28 ,  H04L49/90

摘要： The present application discloses systems and methods for adapting the rate at which the packets are transmitted. In one embodiment, the method includes: (a) receiving a packet; (b) determining whether the packet is high priority packet or a low priority packet; and (c) determining whether a transmission rate value, which defines the maximum rate or maximum average rate at which the node should transmit the low priority packets, should be adjusted, wherein the determination is based, at least in part, on whether at least some number of high priority packets and/or bits was received since a point in time; and (d) adjusting the transmission rate value if it is determined in step (c) that the transmission rate value should be adjusted.

摘要翻译： 本申请公开了用于调整分组被传输的速率的系统和方法。 在一个实施例中，该方法包括：（a）接收分组; （b）确定分组是高优先级分组还是低优先级分组; 以及（c）确定是否应调整定义节点应传送低优先级分组的最大速率或最大平均速率的传输速率值，其中所述确定至少部分地基于至少是否至少 从一个时间点开始接收一些数量的高优先级分组和/或比特; 以及（d）如果在步骤（c）中确定传输速率值应被调整，则调整传输速率值。