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1.发明授权Method and system for assembling segmented frames of data transmitted over a backbone network 失效用于组合通过骨干网传输的数据分段帧的方法和系统公开(公告)号：US06870850B1
公开(公告)日：2005-03-22
申请号：US09512562
申请日：2000-02-24
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。
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2.发明授权Method and system for assembling segmented frames of data transmitted over a backbone network 有权用于组合通过骨干网传输的数据分段帧的方法和系统公开(公告)号：US07400635B2
公开(公告)日：2008-07-15
申请号：US11030298
申请日：2005-01-07
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。
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3.发明申请Method and system for assembling segmented frames of data transmitted over a backbone network 有权用于组合通过骨干网传输的数据分段帧的方法和系统公开(公告)号：US20050117577A1
公开(公告)日：2005-06-02
申请号：US11030298
申请日：2005-01-07
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。
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公开(公告)号：US07320034B2
公开(公告)日：2008-01-15
申请号：US09811038
申请日：2001-03-16
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。
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5.发明授权Data transmission system for reserving a virtual connection over multiple IP networks by means of a reservation 失效数据传输系统，用于通过预留保留在多个IP网络上的虚拟连接公开(公告)号：US06961318B2
公开(公告)日：2005-11-01
申请号：US09850862
申请日：2001-05-08
IPC分类号： H04L12/46 , H04L12/54 , H04L12/851 , H04L12/911 , H04L12/913 , H04L12/927 , H04J3/16 , H04L12/28
CPC分类号： H04L47/822 , H04L12/4604 , H04L47/2408 , H04L47/70 , H04L47/724 , H04L47/745 , H04L47/748 , H04L47/781 , H04L47/783 , H04L47/805 , H04L47/808
摘要： Data transmission system for transmitting packets of data from a source workstation (10) to a destination workstation (40) wherein the packets of data are transmitted over at least a first IP network (14) and a second IP network (30) between an ingress node (20) connected to the source workstation in the first network and an egress node (38) connected to the destination workstation in the second network. The system comprises a local reservation server (26) in the first network accessible by the source workstation and a remote reservation server (42) in the second network accessible by the local reservation server. The local reservation server includes connection setup means for setting up a virtual connection meeting a predefined requirement of Quality of Service from the ingress node to the egress node in response to a request from the source workstation and bandwidth request means for requesting additional bandwidth in the second network to the remote reservation server.
摘要翻译： 用于从源工作站（10）向目的地工作站（40）发送数据分组的数据传输系统，其中通过至少第一IP网络（14）和第二IP网络（30）在入口之间传输数据分组 连接到第一网络中的源工作站的节点（20）和连接到第二网络中的目的地工作站的出口节点（38）。 该系统包括可由源工作站访问的第一网络中的本地预约服务器（26）和由本地预约服务器可访问的第二网络中的远程预订服务器（42）。 本地预约服务器包括连接建立装置，用于响应来自源工作站的请求和带宽请求装置在第二个请求中请求附加带宽，建立满足来自入口节点到出口节点的预定服务质量要求的虚拟连接 网络到远程预留服务器。
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6.发明授权Priority queue management system for the transmission of data frames from a node in a network node 失效用于从网络节点中的节点传输数据帧的优先级队列管理系统公开(公告)号：US06771653B1
公开(公告)日：2004-08-03
申请号：US09664696
申请日：2000-09-19
IPC分类号： H04L1254
CPC分类号： H04L49/9036 , H04L41/32 , H04L47/50 , H04L47/6215
摘要： A system for providing prioritized queue management within a data transmission network node that supports different types of data frame traffic is disclosed herein. The system includes a frame buffer for storing an incoming frame that has an identifiable frame type. A queue is pre-associated with the frame type of the incoming frame such that upon arrival of the frame at the network node, the queue stores a location address at which the frame is stored within the frame buffer such that the frame is maintained within the queue. The queue that contains the frame is stored within a frame table. Processing means are provided for determining a time at which the queue forwards the frame from the frame buffer in accordance with a pre-determined sub-queue priority list. The system further includes time metering means associated with the frame for temporally assigning the frame to a virtual sub-queue among multiple virtual sub-queues that are associated with the queue. The sub-queues are sequentially ordered according to the predetermined sub-queue priority list such that the processing means selects a highest priority frame for forwarding from the frame buffer.
摘要翻译： 本文公开了一种用于在支持不同类型的数据帧业务的数据传输网络节点内提供优先级队列管理的系统。 该系统包括用于存储具有可识别帧类型的传入帧的帧缓冲器。 队列与进入帧的帧类型预先关联，使得在帧到达网络节点时，队列存储帧在帧缓冲器内被存储的位置地址，使得帧保持在 队列。 包含帧的队列存储在一个帧表中。 提供处理装置，用于根据预定的子队列优先级列表确定队列从帧缓冲器转发帧的时间。 该系统还包括与帧相关联的时间计量装置，用于在与队列相关联的多个虚拟子队列之间临时地将帧分配给虚拟子队列。 子队列根据预定的子队列优先级顺序顺序排列，使得处理装置从帧缓冲器中选择用于转发的最高优先级帧。
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7.发明授权Method and system for a local and fast non-disruptive path switching in high speed packet switching networks 有权用于高速分组交换网络中本地和快速无中断路径切换的方法和系统公开(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
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。
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8.发明授权Method and system in an asynchronous transfer mode (ATM) network for providing an available bit rate interface to a continuous bit rate virtual path connection with adjustable bandwidth 失效异步传输模式（ATM）网络中的方法和系统，用于向具有可调节带宽的连续比特率虚拟路径连接提供可用比特率接口公开(公告)号：US06594265B1
公开(公告)日：2003-07-15
申请号：US09438024
申请日：1999-11-10
申请人： Yves Nicolas Etorre , Aline Fichou , Claude Galand
发明人： Yves Nicolas Etorre , Aline Fichou , Claude Galand
IPC分类号： H04L1228
CPC分类号： H04L47/825 , H04L12/4608 , H04L47/15 , H04L47/70 , H04L47/726 , H04L47/801 , H04L47/805 , H04L2012/5631 , H04L2012/5634 , H04L2012/568
摘要： A system and method of providing to an Asynchronous Transfer Mode (ATM) access network a standard ATM interface for accessing a non standard ATM bandwidth adjustable virtual path connection established on a backbone network between a backbone source node and a backbone destination node. A standard ATM available bit rate (ABR) virtual path connection is established between the ATM access network and the backbone source node of the bandwidth adjustable virtual path connection. The available bit rate of this ABR virtual path connection is adjusted according to the adjusted bandwidth of the virtual path connection establish on the backbone node.
摘要翻译： 一种提供给异步传输模式（ATM）接入网的标准ATM接口的系统和方法，用于访问在主干源节点和骨干目的地节点之间的骨干网上建立的非标准ATM带宽可调节虚拟路径连接。 ATM接入网与带宽可调虚拟路径连接的骨干源节点之间建立标准ATM可用比特率（ABR）虚拟路径连接。 该ABR虚拟路径连接的可用比特率根据骨干节点上建立的虚拟路径连接的调整带宽进行调整。
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公开(公告)号：US06690646B1
公开(公告)日：2004-02-10
申请号：US09603710
申请日：2000-06-27
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。
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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。
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