公开(公告)号：US06690678B1

公开(公告)日：2004-02-10

申请号：US09437820

申请日：1999-11-10

申请人： Claude Basso ,  Aline Fichou ,  Claude Galand ,  Laurent Nicolas

发明人： Claude Basso ,  Aline Fichou ,  Claude Galand ,  Laurent Nicolas

IPC分类号： H04J1500

CPC分类号： H04L12/5602 ,  H04L2012/5619 ,  H04L2012/5634 ,  H04Q11/0478

摘要： The present invention relates to a system and method for dynamically adjusting the bandwidth of a continuous bit rate 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. In the network, a bandwidth management server having access to information concerning network nodes and transmission links is defined. This server is informed each time a virtual path connection or a virtual channel connection is established on the network with an indication concerning the initial bandwidth reserved for said connection. The server detects and shares, on a continuous or periodical mode, the bandwidth which is available on transmission links among the bandwidth adjustable continuous bit rate virtual path connections and determines for each connection a new bandwidth. The source node is informed each time a new bandwidth is computed. It adjusts the bandwidth of the corresponding bandwidth adjustable continuous bit rate virtual path connection accordingly.

摘要翻译： 本发明涉及一种系统和方法，用于动态地调整在包括与传输链路互连的多个节点的分组或小区交换网络内的源节点和目的地节点之间建立的连续比特率虚拟路径连接的带宽。 在网络中，定义了具有访问有关网络节点和传输链路的信息的带宽管理服务器。 每当在网络上建立虚拟路径连接或虚拟通道连接时，通知该服务器，并显示关于为所述连接保留的初始带宽。 服务器以连续或周期模式检测和共享带宽可调连续比特率虚拟路径连接之间的传输链路上可用的带宽，并为每个连接确定新的带宽。 每次计算新的带宽时通知源节点。 它相应地调整相应带宽可调连续比特率虚拟路径连接的带宽。

公开(公告)号：US07593321B2

公开(公告)日：2009-09-22

申请号：US10634060

申请日：2003-08-04

申请人： Claude Galand ,  Olivier Bertin ,  Olivier Maurel ,  Laurent Nicolas ,  Aline Fichou

发明人： Claude Galand ,  Olivier Bertin ,  Olivier Maurel ,  Laurent Nicolas ,  Aline Fichou

IPC分类号： H04L12/407

CPC分类号： H04L45/28 ,  H04L1/22 ,  H04L45/00 ,  H04L45/22

摘要： A method for operating a node in a computer network is disclosed, where the network is made up of nodes connected by links. The method has the steps: determining an alternate path for one or more links; reserving resources for the alternate path; and rerouting traffic on the alternate path in case of a link failure. The alternate path may be periodically updated. A plurality of alternate paths may be maintained. The alternate paths may not have any links in common. User traffic may be rerouted substantially simultaneously to each link of the alternate path in the event of failure of a primary path.

摘要翻译： 公开了一种用于操作计算机网络中的节点的方法，其中网络由通过链路连接的节点组成。 该方法具有以下步骤：确定一个或多个链路的备用路径; 为备用路径预留资源; 并在链路故障的情况下重新路由备用路径上的流量。 备用路径可以定期更新。 可以维持多个备选路径。 备用路径可能没有任何共同的链接。 在主路径发生故障的情况下，用户流量可能会基本同时重新路由到备用路径的每个链路。

公开(公告)号：US06072773A

公开(公告)日：2000-06-06

申请号：US898057

申请日：1997-07-22

申请人： Aline Fichou ,  Pierre-Andre Foriel ,  Francois Kermarec ,  Laurent Nicolas

发明人： Aline Fichou ,  Pierre-Andre Foriel ,  Francois Kermarec ,  Laurent Nicolas

IPC分类号： H04L12/54 ,  H04L12/70 ,  H04L12/913 ,  H04L12/927 ,  H04Q11/04 ,  G08C15/00

CPC分类号： H04L12/5695 ,  H04L47/724 ,  H04L47/805 ,  H04Q11/0478 ,  H04L2012/5614 ,  H04L2012/5636

摘要： In high speed cell switching networks, a Call Admission Control (CAC) procedure is performed on each connection according to a specified Traffic Descriptor. A mandatory parameter of the Traffic Descriptor is the Peak Cell Rate (PCR), associated with a Cell Delay Variation Tolerance (CDVT). Connections which specify a high CDVT value may potentially send into the network bursts of cells at a rate much higher than the declared Peak Cell Rate, which may lead to congestion in cell buffers of intermediate network nodes. Guaranteeing the Quality of Service (QoS) for such connections may require the reservation of a high amount of resources in the network, leading to poor utilization of those resources. A Call Admission Control procedure, associated with an Usage Parameter Control/Network Parameter Control mechanism, provides:accepting not bursty connections and guaranteeing the Quality of Service requested at connection setup,accepting very bursty connections and guaranteeing a minimal Quality of Service rather than simply rejecting them,protecting the network from potentially too bursty traffic,determining a bandwidth reservation method based on a Mean Burst Length,for every connection, minimizing the bandwidth reservation while satisfying the required Quality of Service.

摘要翻译： 在高速小区交换网络中，根据指定的业务描述符，在每个连接上执行呼叫接纳控制（CAC）过程。 流量描述符的强制参数是峰值信元速率（PCR），与信元延迟变化容差（CDVT）相关联。 指定高CDVT值的连接可能潜在地以比所声明的峰值信元速率高得多的速率发送到信元的网络脉冲串，这可能导致中间网络节点的信元缓冲器中的拥塞。 确保这种连接的服务质量（QoS）可能需要在网络中预留大量的资源，导致这些资源的利用率较低。 与使用参数控制/网络参数控制机制相关联的呼叫接纳控制程序提供：不接受突发连接并保证在连接建立时所请求的服务质量，接受非常突发的连接并保证最低服务质量，而不是简单地拒绝 他们，保护网络免受潜在的突发性流量，为每个连接确定基于平均突发长度的带宽预留方法，使带宽预留最小化，同时满足所需的服务质量。

公开(公告)号：US06400681B1

公开(公告)日：2002-06-04

申请号：US08834679

申请日：1997-04-01

申请人： Olivier Bertin ,  Gerard Brun ,  Claude Galand ,  Olivier Maurel ,  Laurent Nicolas

发明人： Olivier Bertin ,  Gerard Brun ,  Claude Galand ,  Olivier Maurel ,  Laurent Nicolas

IPC分类号： H04L1256

CPC分类号： H04L49/253 ,  H04L49/205 ,  H04L49/206 ,  H04L49/256 ,  H04L49/3081 ,  H04L49/50 ,  H04L2012/5619

摘要： The present invention is directed to a high speed packet switching network and, in particular to a method and system for minimizing the time to establish a connection between an origin and a destination node. A path calculated at the time the connection is requested is recorded in a Routing Database and updated each time a modification occurs in the network. Furthermore, alternate paths for supporting non-disruptive path switch on failure or preemption, and new paths towards potential destination nodes can be calculated and stored when the connection set up process is idle. These last operations are executed in background with a low processing priority and in absence of connection request.

摘要翻译： 本发明涉及一种高速分组交换网络，特别涉及用于最小化建立起始节点和目的地节点之间的连接的时间的方法和系统。 在请求连接时计算的路径被记录在路由数据库中，并且每次在网络中发生修改时更新。 此外，当连接建立进程空闲时，可以计算并存储用于支持故障或抢占时的非破坏性路径切换的备用路径和朝向潜在目的地节点的新路径。 这些最后的操作在后台执行，处理优先级低，没有连接请求。

公开(公告)号：US5930265A

公开(公告)日：1999-07-27

申请号：US782694

申请日：1997-01-16

申请人： Maurice Duault ,  Laurent Nicolas ,  Claude Galand ,  Bernard Pucci

发明人： Maurice Duault ,  Laurent Nicolas ,  Claude Galand ,  Bernard Pucci

IPC分类号： H04Q3/00 ,  H04L12/56 ,  H04Q11/04 ,  H04J3/00

CPC分类号： H04Q11/0478 ,  H04L2012/5652

摘要： A data processing method for efficiently transporting multimedia data packets of fixed and/or variable length over an Assynchronous Transfer Mode (ATM) network made to transport fixed length ATM cells including a fixed length user data payload and a fixed length ATM header. The data processing method includes concatenating said fixed and/or variable length user data and appending said concatenated data with a so-called trailer defining the various concatenated user data lengths and identifications, for being further split into ATM cells payloads before being transmitted over said ATM network.

摘要翻译： 一种数据处理方法，用于通过异步传输模式（ATM）网络高效地传输固定和/或可变长度的多媒体数据分组，用于传输固定长度的ATM信元，包括固定长度用户数据有效载荷和固定长度的ATM报头。 数据处理方法包括连接所述固定和/或可变长度的用户数据，并将所述连接的数据与定义各种级联用户数据长度和标识的所谓拖尾相连，以便在通过所述ATM发送之前进一步分割成ATM信元有效载荷 网络。

公开(公告)号：US06934249B1

公开(公告)日：2005-08-23

申请号：US10158624

申请日：2002-05-30

申请人： Olivier Bertin ,  Gerard Brun ,  Claude Galand ,  Olivier Maurel ,  Laurent Nicolas

发明人： Olivier Bertin ,  Gerard Brun ,  Claude Galand ,  Olivier Maurel ,  Laurent Nicolas

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/10 ,  H04L47/12 ,  H04L47/15 ,  H04L47/70 ,  H04L47/724 ,  H04L47/746 ,  H04L47/801 ,  H04L47/822 ,  H04L47/829

摘要： The present invention is directed to a high speed packet switching network and, in particular to a method and system for minimizing the time to establish a connection between an origin and a destination node. Due to high dynamicity of the traffic on transmission links, it is important to select a routing path according to a fully up-to-date information on all network resources. The simpler approach is to calculate a new path for each new connection request. This solution may be very time consuming because there are as many path selection operations as connection set up operations. On another hand, the calculation of paths based on an exhaustive exploration of the network topology, is a complex operation which may also take an inordinate amount of resources in large networks. Many of connections originated from a network node flow to the same destination network node. It is therefore possible to take a serious benefit in reusing the same already calculated paths for several connections towards the same node. The path calculated at the time the connection is requested is recorded in a Routing Database and updated each time a modification occurs in the network. Furthermore, alternate paths for supporting non-disruptive path switch on failure or preemption, and new paths towards potential destination nodes can be calculated and stored when the connection set up process is idle. These last operations are executed in background with a low processing priority and in absence of connection request.

摘要翻译： 本发明涉及一种高速分组交换网络，特别涉及用于最小化建立起始节点和目的地节点之间的连接的时间的方法和系统。 由于传输链路上的流量的高动态性，根据所有网络资源的完全最新信息选择​​路由路径很重要。 更简单的方法是为每个新的连接请求计算一个新路径。 该解决方案可能非常耗时，因为存在与连接建立操作相同的路径选择操作。 另一方面，基于网络拓扑的详尽探索的路径计算是一种复杂的操作，在大型网络中也可能占用过多的资源。 许多来自网络节点的连接流到同一目标网络节点。 因此，可以在对相同节点的多个连接重复使用相同的已经计算的路径方面有很大的益处。 在请求连接时计算的路径被记录在路由数据库中，并且每次在网络中发生修改时更新。 此外，当连接建立进程空闲时，可以计算并存储用于支持故障或抢占时的非破坏性路径切换的备用路径和朝向潜在目的地节点的新路径。 这些最后的操作在后台执行，处理优先级低，没有连接请求。

公开(公告)号：US06317433B1

公开(公告)日：2001-11-13

申请号：US09170299

申请日：1998-10-13

申请人： Claude Galand ,  Laurent Nicolas ,  Rene Glaise ,  Gerald Lebizay

发明人： Claude Galand ,  Laurent Nicolas ,  Rene Glaise ,  Gerald Lebizay

IPC分类号： H04J324

CPC分类号： H04L47/36 ,  H04J3/1688 ,  H04L2012/5652 ,  H04L2012/5658 ,  H04Q11/0478

摘要： A method and system for optimizing transmission links bandwidth utilization in an Asynchronous Transfer Mode (ATM) packet switching network including switching nodes interconnected by high speed transmission links, said network being made to transport user data traffic including PTM traffic organized into variable length packets, each packet comprising a variable length data payload and an original fixed length PTM packet header. The original PTM header is converted into an ATM-like header including a flag (F) identifying the packet as being a PTM packet, a label indication made to orient the currently-considered PTM packet within the ATM network nodes, a count (CNT) field for storing the PTM payload length indication therein to enable locating the PTM payload end position and a Header Error Control (HEC) field for storing an ATM-like error control byte (HEC) therein, which enables transporting the PTM packets over the ATM network links without having to chop the PTM payload into predefined fixed length segments by adding dummy bits to the last segment if required.

摘要翻译： 一种用于优化包括由高速传输链路互连的交换节点的异步传输模式（ATM）分组交换网络中的传输链路带宽利用的方法和系统，所述网络用于传送包括组织成可变长度分组的PTM业务的用户数据业务，每个 分组包括可变长度数据有效载荷和原始固定长度PTM分组报头。 原始PTM报头被转换成包括标识分组的标志（F）作为PTM分组的类似ATM的报头，对ATM网络节点内当前考虑的PTM分组进行定向的标签指示，计数（CNT） 用于存储其中的PTM有效载荷长度指示以使得能够定位PTM有效载荷结束位置和用于存储其中的类似ATM的错误控制字节（HEC）的报头错误控制（HEC）字段，这使得能够通过ATM网络传送PTM分组 链路，而不需要通过在必要时向最后一个段添加虚拟位来将PTM有效载荷划分成预定义的固定长度段。

公开(公告)号：US6011776A

公开(公告)日：2000-01-04

申请号：US786916

申请日：1997-01-22

申请人： Jean-Marc Berthaud ,  Claude Galand ,  Pierre-Andre Foriel ,  Stephane Lengelle ,  Laurent Nicolas

发明人： Jean-Marc Berthaud ,  Claude Galand ,  Pierre-Andre Foriel ,  Stephane Lengelle ,  Laurent Nicolas

IPC分类号： H04L12/56 ,  H04Q11/04 ,  G01R31/08

CPC分类号： H04L12/5602 ,  H04Q11/0478 ,  H04L2012/5632 ,  H04L2012/5636 ,  H04L2012/5651

摘要： A system adapts access to a packet switching network. A dynamic bandwidth adaptation continuously monitors the mean bit rate of a signal source and the loss probability of a connection in the network. A filtering means removes noise from the mean bit rate and loss probabilty. A test means determine whether the values fall within a pre-defined acceptable adaptation region in a mean bit rate, loss probability plane. Triggering means initiate bandwidth adaptation procedures when the values fall outside of the region which in turn, initiate means for acquiring a new connection bandwidth, and determining new parameters for the adaptation mechanism.

摘要翻译： 系统适应对分组交换网络的访问。 动态带宽自适应连续监视信号源的平均比特率和网络中连接的丢失概率。 滤波器意味着从均匀比特率和丢失概率中去除噪声。 测试装置确定值是否以平均比特率，丢失概率平面落在预定义的可接受适应区域内。 当值落在区域之外时，触发装置启动带宽自适应过程，该区域又起始用于获取新连接带宽的装置，以及确定适应机制的新参数。

公开(公告)号：US5815492A

公开(公告)日：1998-09-29

申请号：US807499

申请日：1997-02-27

申请人： Jean-Marc Berthaud ,  Pierre-Andre Foriel ,  Claude Galand ,  Stephane Lengelle ,  Laurent Nicolas

发明人： Jean-Marc Berthaud ,  Pierre-Andre Foriel ,  Claude Galand ,  Stephane Lengelle ,  Laurent Nicolas

IPC分类号： H04Q3/00 ,  H04L12/24 ,  H04L12/56 ,  H04J3/14

CPC分类号： H04L49/254 ,  H04L12/5602 ,  H04L41/0816 ,  H04L41/0896 ,  H04L41/142 ,  H04L41/32 ,  H04L43/028 ,  H04L43/0829 ,  H04L43/0894 ,  H04L49/105 ,  H04L49/3081 ,  H04L49/503 ,  H04L2012/5632 ,  H04L2012/5636 ,  H04L2012/5684 ,  H04L49/3009

摘要： Method and system for adapting access to a packet switching network including a dynamic bandwidth adjustment mechanism which continuously monitors the mean bit rate of the signal source and the loss probability of the connection. These values are filtered to remove noise and then used to test whether the values fall within a pre-defined acceptable adaptation region in the mean bit rate, loss probability plane. Values falling outside of this region trigger bandwidth adaptation procedures which, in turn, result in acquiring a new connection bandwidth, and determining new parameters for the adaptation mechanism. Furthermore, the mechanism controls the number of connections that can be adapted by a single processor, given its processing capability. It ensures fairness between the connections in the sense that it prevents a single connection from using, on the average, a greater portion of the processor capacity than it should.

摘要翻译： 包括用于连续监视信号源的平均比特率和连接丢失概率的动态带宽调整机制的分组交换网络的接入方法和系统。 对这些值进行滤波以去除噪声，然后用于测试值是否落在平均位速率丢失概率平面内的预定义的可接受适应区域内。 落在该区域之外的值触发带宽适配过程，这又导致获得新的连接带宽，并确定适应机制的新参数。 此外，鉴于其处理能力，该机制控制单个处理器可以适应的连接数量。 它确保连接之间的公平性，这意味着它阻止单个连接平均使用比应用程序更大的处理器容量。

公开(公告)号：US06324164B1

公开(公告)日：2001-11-27

申请号：US09018591

申请日：1998-02-04

申请人： Ronald Luijten ,  Laurent Nicolas ,  Michel Poret

发明人： Ronald Luijten ,  Laurent Nicolas ,  Michel Poret

IPC分类号： H04L1256

CPC分类号： H04L49/3081 ,  H04L2012/5625 ,  H04L2012/5658 ,  H04Q11/0478

摘要： An ATM protocol adapter designed to operate with high speed switching systems having a receive and transmit elements based upon pipeline structure insuring that each operation is performed in a limited period.

摘要翻译： 一种ATM协议适配器，被设计用于具有基于流水线结构的接收和发送元件的高速交换系统，确保每个操作在有限的时间内执行。