公开(公告)号：US20100158020A1

公开(公告)日：2010-06-24

申请号：US12643534

申请日：2009-12-21

申请人： Jean-François Le Pennec ,  Aurélien Bruno ,  Didier F. Giroir ,  Aline Fichou

发明人： Jean-François Le Pennec ,  Aurélien Bruno ,  Didier F. Giroir ,  Aline Fichou

IPC分类号： H04L12/56

CPC分类号： H04L12/1403 ,  H04L12/14

摘要： Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones (10, 12, 14) being each defined by the application of a single flat rate. A PE device (18) belonging to each billing zone includes a virtual router (58, 60, 62) associated with each billing zone, two virtual routers being interconnected by a virtual circuit (38, 40, 42) transmitting all the traffic exchanged between the two associated billing zones so that the traffic flowing between the two billing zones can be measured and therefore precisely billed to the customer.

摘要翻译： 基于多协议标签交换（MPLS）技术的使用物理传输网络的客户的虚拟专用网络（VPN），包括多个提供商（P）设备和多个提供者边缘（PE）设备，客户拥有 在多个CE设备中的至少两个特定的客户边缘（CE）设备，特定的CE设备被附加到特定的PE设备并且使客户能够通过PE的中介获得对属于同一VPN的任何其他CE设备的访问 设备连接到CE设备。 VPN包括几个计费区域（10,12,14），每个计费区域由应用单个统一费率定义。 属于每个计费区域的PE设备（18）包括与每个计费区域相关联的虚拟路由器（58,60,62），两个虚拟路由器由虚拟电路（38,40,42）互连，该虚拟路由器传输在 两个关联的计费区域，使得可以测量在两个计费区域之间流动的流量，并因此精确地向客户收费。

公开(公告)号：US07320034B2

公开(公告)日：2008-01-15

申请号：US09811038

申请日：2001-03-16

申请人： Aline Fichou ,  Jacques Fieschi ,  Claude Galand ,  Jean-Francois Le Pennec

发明人： Aline Fichou ,  Jacques Fieschi ,  Claude Galand ,  Jean-Francois Le Pennec

IPC分类号： G06F15/16

CPC分类号： H04L47/822 ,  H04L45/10 ,  H04L47/18 ,  H04L47/24 ,  H04L47/70 ,  H04L47/724 ,  H04L47/781 ,  H04L47/805 ,  H04L47/808

摘要： A method and system for reserving a virtual connection from a source workstation to a destination workstation. Packets of data are transmitted over a network between an ingress node of the source workstation and an egress node of the destination workstation. In accordance with the method of the present invention, a reservation request is delivered from the source workstation to a reservation server. The reservation server includes a user database for storing the identification of each user allowed to access to the reservation server and also stores the rights of each user. The reservation server further includes a network database for storing the information describing a network capacity required to set up the virtual connection. A verification is then performed to determine whether or not the reservation request may be validated in view of user information within said source workstation. A second verification is performed to determine whether or not the capacity of said network is sufficient to meet the requirements of the reservation request. In response to the capacity of the network being sufficient to meet the requirements of the reservation request, a virtual connection is established from the ingress node to the egress node.

摘要翻译： 一种用于将虚拟连接从源工作站预留到目标工作站的方法和系统。 数据包通过源工作站的入口节点和目标工作站的出口节点之间的网络传输。 根据本发明的方法，将预留请求从源工作站传送到预约服务器。 预约服务器包括用于存储允许访问预约服务器的每个用户的标识的用户数据库，并且还存储每个用户的权限。 预约服务器还包括网络数据库，用于存储描述建立虚拟连接所需的网络容量的信息。 然后执行验证以确定预留请求是否可以根据所述源工作站内的用户信息而被验证。 执行第二验证以确定所述网络的容量是否足以满足预留请求的要求。 响应于网络的容量足以满足预留请求的要求，建立从入口节点到出口节点的虚拟连接。

公开(公告)号：US06687228B1

公开(公告)日：2004-02-03

申请号：US09438054

申请日：1999-11-10

申请人： Aline Fichou ,  Claude Galand

发明人： Aline Fichou ,  Claude Galand

IPC分类号： H04J116

CPC分类号： H04L12/5601 ,  H04L2012/5634

摘要： The present invention relates to a method and system of sharing among a plurality of virtual channel connections the bandwidth of a bandwidth adjustable virtual path connection established between a source node and a destination node within a packet or cell switching network comprising a plurality of nodes interconnected with transmission links, said virtual channel connections comprising bandwidth adjustable reserved virtual channel connections with minimum bandwidth reservation and/or reserved virtual channel connections and/or non reserved virtual channel connections with minimum bandwidth reservation or/and totally non reserved connections without minimum bandwidth reservation. When the source node receives a notification indicating a new bandwidth to allocate to the bandwidth adjustable virtual path connection, and when this new bandwidth is lower than the sum of the current reserved bandwidth of virtual channel connections, the current reserved bandwidth of each bandwidth adjustable virtual channel connection is reduced by applying a ratio to the part of the current bandwidth reserved above the minimum reservation. The ratio is, in a preferred embodiment, proportional to the difference between the sum of the reserved bandwidth of all virtual channel connections and the new available bandwidth allocated to the bandwidth adjustable virtual path connection, and inversely proportional to the sum of the bandwidth reserved above the minimum reservation for the bandwidth adjustable virtual channel connections.

摘要翻译： 本发明涉及一种在多个虚拟通道连接之间共享带宽可调节的虚拟路径连接的带宽的方法和系统，该带宽是在分组或小区交换网络内的源节点与目的地节点之间建立的，包括多个节点， 传输链路，所述虚拟信道连接包括具有最小带宽预留和/或预留虚拟信道连接的带宽可调保留虚拟信道连接和/或具有最小带宽预留或/或完全非保留连接的非保留虚拟信道连接，而没有最小带宽预留。 当源节点接收到指示分配给带宽可调虚拟路径连接的新带宽的通知，并且当该新带宽低于虚拟信道连接的当前保留带宽的总和时，每个带宽的当前保留带宽可调节虚拟 通过将比例应用到在最小保留上保留的当前带宽的一部分来减少通道连接。 在优选实施例中，该比例与所有虚拟信道连接的保留带宽和分配给带宽可调节虚拟路径连接的新可用带宽之和之间的差成比例，并且与上述保留的带宽之和成反比 带宽可调虚拟通道连接的最小预留。

公开(公告)号：US06424624B1

公开(公告)日：2002-07-23

申请号：US09167786

申请日：1998-10-07

申请人： Claude Galand ,  Pierre-Andre Foriel ,  Aline Fichou ,  Marcus Enger

发明人： Claude Galand ,  Pierre-Andre Foriel ,  Aline Fichou ,  Marcus Enger

IPC分类号： G06F1110

CPC分类号： H04L12/5601 ,  H04L2012/5631 ,  H04L2012/5636 ,  H04L2012/5637 ,  H04L2012/5651

摘要： This system is made to perform congestion detection and flow control in high speed digital packet switching network (22) carrying discardable and non-discardable traffic. Forward traffic received at a destination system over a first connection from a source system is monitored. If a congestion-indicating bit is detected in a received packet, a backward congestion indicator is set in packets flowing from the destination system to the source system over a second connection. The source system integrates the number of backward congestion indicators received over successive periods of time using a count-up, count-down counter. Specific congestion control actions are taken at the source system as a function of the counter state at the end of each of the successive periods of time. The congestion control actions may include increasing or decreasing the bandwidth allocated to discardable traffic intended to be delivered over the first connection.

摘要翻译： 该系统用于在承载可丢弃和不可丢弃业务的高速数字分组交换网络（22）中执行拥塞检测和流量控制。 监视从源系统通过第一连接在目的地系统处接收到的业务。 如果在接收到的分组中检测到拥塞指示比特，则通过第二连接从目的地系统流向源系统的分组中设置反向拥塞指示符。 源系统使用递增递减计数器将连续时间段内接收到的反向拥塞指标数量进行整合。 作为在每个连续时间段结束时的计数器状态的函数，在源系统处采取具体的拥塞控制动作。 拥塞控制动作可以包括增加或减少分配给旨在通过第一连接传递的可丢弃业务的带宽。

公开(公告)号：US5909443A

公开(公告)日：1999-06-01

申请号：US780149

申请日：1997-01-03

申请人： Aline Fichou ,  Serge Fdida ,  Claude Galand ,  Gerald Arnold Marin ,  Raif O. Onvural ,  Ken Van Vu

发明人： Aline Fichou ,  Serge Fdida ,  Claude Galand ,  Gerald Arnold Marin ,  Raif O. Onvural ,  Ken Van Vu

IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L12/26

CPC分类号： H04Q11/0478 ,  H04L2012/5629 ,  H04L2012/5635

摘要： An explicit rate algorithm is disclosed for use in an end-to-end closed loop flow control algorithm for an ATM network which carries at least constant bit rate (CBR) traffic, variable bit rate (VBR) traffic and adjustable bit rate (ABR) traffic. The algorithm determines how much additional bandwidth is available for ABR traffic on an output link from a node and produces an explicit rate variable that can be forwarded to a source for the ABR traffic. Both the maximum and minimum bandwidths already reserved for all connections on the output link are determined. A single reserved bandwidth value is chosen within the range defined by the maximum and minimum reserved bandwidth values. The current utilization of the ABR input buffer for the node is also determined. The explicit rate variable is generated as a function of the link capacity, the reserved bandwidth value and the current utilization of the ABR input buffer. The explicit rate variable is written into a resource management cell which is routed through the network to the ABR traffic source. The explicit rate variable is intended to change the input rate of the ABR source to utilize more of the ABR input buffer.

摘要翻译： 公开了一种用于ATM网络的端到端闭环流量控制算法的显式速率算法，该算法至少承载恒定比特率（CBR）流量，可变比特率（VBR）流量和可调比特率（ABR） 交通。 该算法确定来自节点的输出链路上的ABR流量可用的附加带宽多少，并产生可以转发到ABR流量的源的显式速率变量。 已经为输出链路上的所有连接预留的最大和最小带宽都被确定。 在由最大和最小保留带宽值定义的范围内选择单个保留带宽值。 还确定了节点的ABR输入缓冲区的当前利用率。 显式速率变量根据链路容量，保留带宽值和ABR输入缓冲区的当前利用率生成。 显式速率变量被写入通过网络路由到ABR流量源的资源管理单元。 显式速率变量旨在改变ABR源的输入速率以利用更多的ABR输入缓冲器。

公开(公告)号：US07668181B2

公开(公告)日：2010-02-23

申请号：US10638518

申请日：2003-08-11

申请人： Jean-François Le Pennec ,  Aurélien Bruno ,  Didier F. Giroir ,  Aline Fichou

发明人： Jean-François Le Pennec ,  Aurélien Bruno ,  Didier F. Giroir ,  Aline Fichou

IPC分类号： H04L12/28

CPC分类号： H04L12/1403 ,  H04L12/14

摘要： Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones (10, 12, 14) being each defined by the application of a single flat rate. A PE device (18) belonging to each billing zone includes a virtual router (58, 60, 62) associated with each billing zone, two virtual routers being interconnected by a virtual circuit (38, 40, 42) transmitting all the traffic exchanged between the two associated billing zones so that the traffic flowing between the two billing zones can be measured and therefore precisely billed to the customer.

摘要翻译： 基于多协议标签交换（MPLS）技术的使用物理传输网络的客户的虚拟专用网络（VPN），包括多个提供商（P）设备和多个提供者边缘（PE）设备，客户拥有 在多个CE设备中的至少两个特定的客户边缘（CE）设备，特定的CE设备被附加到特定的PE设备并且使客户能够通过PE的中介获得对属于同一VPN的任何其他CE设备的访问 设备连接到CE设备。 VPN包括几个计费区域（10,12,14），每个计费区域由应用单个统一费率定义。 属于每个计费区域的PE设备（18）包括与每个计费区域相关联的虚拟路由器（58,60,62），两个虚拟路由器由虚拟电路（38,40,42）互连，该虚拟路由器传输在 两个关联的计费区域，使得可以测量在两个计费区域之间流动的流量，并因此精确地向客户收费。

公开(公告)号：US06912224B1

公开(公告)日：2005-06-28

申请号：US09021707

申请日：1998-02-10

申请人： Maurice Duault ,  Bernard Pucci ,  Serge Leroy ,  Gerard Richter ,  Francois Kermarec ,  Aline Fichou

发明人： Maurice Duault ,  Bernard Pucci ,  Serge Leroy ,  Gerard Richter ,  Francois Kermarec ,  Aline Fichou

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/06

CPC分类号： H04L49/90

摘要： An adaptive apparatus and method for managing a playout buffer (POB) in an edge node of a packet-based data communications network, such as an ATM network, in order to reduce the end-to-end communication delay introduced thereby and to allow the POB filling level to be corrected in the event of clock speed differences. A monitoring mechanism determines if the minimum filling level of the playout buffer over a time period whereby the average filling level of the playout buffer is reduced according to the minimum filling level of the playout buffer over the time period.

摘要翻译： 一种用于管理诸如ATM网络的基于分组的数据通信网络的边缘节点中的播出缓冲器（POB）的自适应装置和方法，以便减少由此引入的端到端通信延迟并允许 在时钟速度差异的情况下要纠正POB填充级别。 监视机构确定在一段时间内播放缓冲器的最小填充水平是否根据播放缓冲器在该时间段内的最小填充水平而减小播放缓冲器的平均填充水平。

公开(公告)号：US20050117577A1

公开(公告)日：2005-06-02

申请号：US11030298

申请日：2005-01-07

申请人： Aline Fichou ,  Claude Galand ,  Jacques Fieschi ,  Jean-Francoise Pennec

发明人： Aline Fichou ,  Claude Galand ,  Jacques Fieschi ,  Jean-Francoise Pennec

IPC分类号： H04L12/46 ,  H04L29/06 ,  H04L12/56

CPC分类号： H04L29/06 ,  H04L12/4604 ,  H04L69/08 ,  H04L69/16 ,  H04L69/22 ,  H04L2212/00

摘要： A method and system of transmitting data frames from a sending unit (10) to a receiving unit (12) in a data transmission network comprising at least a backbone (14) wherein the data are transmitted over high speed links enabling long Maximum Transmission Units (MTU) between an ingress node (18) connected to the sending unit by a first access link (16) and an egress node (22) connected to the receiving node by a second access link (20), with at least one of the first and second access links being a low speed access link requiring the data frames to be segmented into short MTUs between the sending unit and the ingress node and between the egress node and the receiving unit. A plurality of consecutive segmented data frames (28) belonging to the same flow of data transmitted from the sending unit to the ingress node are assembled by the ingress node into an assembled data frame (30) corresponding to the long MTU, the assembled data frame is transmitted over the backbone from the ingress node to the egress node at a high speed authorized by the backbone links, and the assembled data frame is de-assembled into consecutive segmented data frames (32) corresponding to the short MTUs by the egress node before being transmitted to the receiving unit.

摘要翻译： 一种将数据帧从发送单元（10）发送到至少包括主干（14）的数据传输网络中的接收单元（12）的方法和系统，其中所述数据通过高速链路传输，从而能够实现长的最大传输单元 在由第一接入链路（16）连接到发送单元的入口节点（18）和通过第二接入链路（20）连接到接收节点的出口节点（22）之间的MTU中，至少一个第一接入链路 并且第二接入链路是低速接入链路，需要将数据帧分段成发送单元和入节点之间以及出口节点与接收单元之间的短MTU。 属于从发送单元向入口节点发送的相同数据流的多个连续分段数据帧（28）由入口节点组装成对应于长MTU的组合数据帧（30），组合数据帧 以骨干链路授权的高速通过骨干网从入口节点传送到出口节点，组装好的数据帧在出口节点之前被去组装成与出口节点对应的短MTU的连续分段数据帧（32） 被发送到接收单元。

公开(公告)号：US06690646B1

公开(公告)日：2004-02-10

申请号：US09603710

申请日：2000-06-27

申请人： Aline Fichou ,  Claude Galand ,  Jean-Francois Le Pennec

发明人： Aline Fichou ,  Claude Galand ,  Jean-Francois Le Pennec

IPC分类号： H04L1254

CPC分类号： H04L43/0882 ,  H04L41/0896 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/087 ,  H04L43/16 ,  H04L2012/5623 ,  H04L2012/5626 ,  H04L2012/5681 ,  H04Q11/0478

摘要： A method and a system of network capacity planning for use in a high speed packet switching network. The network comprises a plurality of switching nodes interconnected through a plurality of communication links, each of the switching nodes comprises means for switching packets from at least one input link to at least one output link. Each of the output links is coupled to at least one buffer in the switching node for queuing packets before they are transmitted over the output link. In each of the switching nodes and for each of the output links, a time distribution of the occupancy of each buffer during a predetermined monitoring time period is measured, and stored in a centralized memory location. Then, the buffer occupancy time distribution data are retrieved from the centralized memory location in all the switching nodes, gathered and stored in a network dedicated server. These buffer occupancy time distribution data for all the nodes are transmitted from the dedicated network server to a network monitoring center. In the network monitoring center, the buffer occupancy time distribution data are integrated on a larger time scale, and stored. Finally, the integrated buffer occupancy time distribution data are used to apply network capacity planning actions to the network resources.

摘要翻译： 一种用于高速分组交换网络的网络容量规划方法和系统。 网络包括通过多个通信链路互连的多个交换节点，每个交换节点包括用于将分组从至少一个输入链路切换到至少一个输出链路的装置。 每个输出链路耦合到交换节点中的至少一个缓冲器，用于在分组在通过输出链路传输之前排队。 在每个交换节点和每个输出链路中，测量在预定监视时间段期间每个缓冲器的占用时间分布，并存储在集中式存储器位置。 然后，从所有交换节点的集中式存储单元检索缓冲器占用时间分布数据，收集并存储在网络专用服务器中。 这些用于所有节点的缓冲器占用时间分布数据从专用网络服务器发送到网络监控中心。 在网络监控中心，将缓冲区占用时间分布数据集成在较大的时间尺度上，并进行存储。 最后，集成缓冲区占用时间分布数据用于将网络容量规划动作应用于网络资源。

公开(公告)号：US06226266B1

公开(公告)日：2001-05-01

申请号：US08946237

申请日：1997-10-07

申请人： Claude Galand ,  Maurice Duault ,  Aline Fichou ,  Olivier Bertin

发明人： Claude Galand ,  Maurice Duault ,  Aline Fichou ,  Olivier Bertin

IPC分类号： H04L1256

CPC分类号： H04Q11/0478 ,  H04L2012/5671 ,  H04L2012/5684

摘要： An apparatus and method that determines the end-to-end transit delay at each node of a path, in accordance with the selected probability value indicative of the probability to experience a delay at each node that is smaller than the computed transit delay. Then the computed transit delays per nodes are combined to obtain the end-to-end delay of the path, the combination being either an arithmetic operation or a convolution operation. A method to approximate the convolution operation is also disclosed.

摘要翻译： 根据所选择的概率值，其指示在每个节点处经历比所计算的过渡延迟小的延迟的概率，确定路径的每个节点处的端到端传输延迟的装置和方法。 然后将每个节点的计算的传输延迟组合以获得路径的端到端延迟，该组合是算术运算或卷积运算。 还公开了近似卷积运算的方法。