专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09819546B2 Data connectivity systems and methods through packet-optical switches 有权
公开(公告)号：US09819546B2
公开(公告)日：2017-11-14
申请号：US14867679
申请日：2015-09-28
申请人： Ciena Corporation
发明人： Loudon T. Blair
IPC分类号： H04Q1/50 , H04L12/24 , H04L12/705 , H04Q11/00 , H04B10/27 , H04L12/46 , H04L12/931 , H04L12/761 , H04L12/751 , H04J3/16 , H04J14/02 , H04L12/721 , H04L12/715 , H04L12/723
CPC分类号： H04L41/0826 , H04B10/27 , H04J3/1658 , H04J14/0227 , H04J14/026 , H04J14/0273 , H04J2203/0053 , H04J2203/006 , H04J2203/0067 , H04L12/4641 , H04L45/02 , H04L45/16 , H04L45/18 , H04L45/50 , H04L45/62 , H04L45/64 , H04L49/351 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0073 , H04Q2011/0077 , H04Q2011/009 , H04Q2011/0098
摘要： Systems and methods for providing a data service through a packet-optical switch in a network include, subsequent to defining a loop-free forwarding topology for the data service in the network, if the packet-optical switch is a degree 2 site for the data service, providing the data service through the packet-optical switch at a Layer 1 protocol bypassing a partitioned packet fabric of the packet-optical switch; and if the packet-optical switch is a degree 3 or more site for the data service with multi-point connectivity, providing the data service through the packet-optical switch at the Layer 1 protocol and at a packet level using the partitioned packet fabric to provide the data service between the multi-point connectivity and to associated OTN connections for each degree of the degree 3 or more site.

2. 发明授权

US08571018B2 Sonet add/drop multiplexer with packet over sonet capability 失效
公开(公告)号：US08571018B2
公开(公告)日：2013-10-29
申请号：US11776644
申请日：2007-07-12
申请人： Donald O'Connor
发明人： Donald O'Connor
IPC分类号： H04L12/64
CPC分类号： H04Q11/0478 , H04J2203/0042 , H04J2203/0053 , H04J2203/0082 , H04J2203/0089 , H04L12/5601 , H04L12/66 , H04L2012/5605 , H04L2012/561 , H04L2012/5665 , H04L2012/5672 , H04L2012/6443 , H04L2012/6472
摘要： An advanced SONET add/drop multiplexer capable of supporting packet over SONET and multiprotocol label switching. The add/drop multiplexer is capable of adding and/or dropping both STM and packet traffic, such as Internet Protocol traffic. This SONET add/drop multiplexer allows Internet Protocol streams which are added or dropped at different nodes to be carried over the same SONET path in a network, thereby greatly saving bandwidth.

3. 发明授权

US07616584B2 Minimizing single points of failure in paths with mixed protection schemes 有权
标题翻译：最小化混合保护方案路径中的单点故障
公开(公告)号：US07616584B2
公开(公告)日：2009-11-10
申请号：US10986675
申请日：2004-11-12
申请人： Suresh Katukam , Pradeep Singh
发明人： Suresh Katukam , Pradeep Singh
IPC分类号： H04L12/26
CPC分类号： H04L12/43 , H04J2203/0053 , H04J2203/006 , H04L45/00 , H04L45/22 , H04L45/28
摘要： Methods and apparatus for substantially minimizing single points of failure for circuit paths in networks with mixed protection schemes are disclosed. According to one aspect of the present invention, a method for routing circuit paths between a source and a destination of a network includes identifying a first available circuit path between the source and the destination. The first available circuit path includes a first plurality of links which each have an associated protection type. The method also includes determining a number protection changes associated with the first plurality of links, and assigning a first metric to the first available path that is based on the number of protection changes. Finally, the method includes identifying a selected available path to be used to pass information between the source and the destination based at least in part on the first metric.
摘要翻译：公开了用于基本上最小化具有混合保护方案的网络中的电路路径的单点故障的方法和装置。根据本发明的一个方面，一种用于在网络的源和目的地之间路由电路路径的方法包括识别源与目的地之间的第一可用电路路径。第一可用电路路径包括第一多个链路，每个链路各具有相关联的保护类型。该方法还包括确定与第一多个链路相关联的数字保护改变，以及基于保护改变的数量为第一可用路径分配第一度量。最后，该方法包括至少部分地基于第一度量来识别用于在源和目的地之间传递信息的所选择的可用路径。

4. 发明授权

US07593322B2 Apparatus and method for optical communication protection 有权
标题翻译：光通信保护装置及方法
公开(公告)号：US07593322B2
公开(公告)日：2009-09-22
申请号：US11038206
申请日：2005-01-21
申请人： Evert E. DeBoer , Darryl C. Ryan
发明人： Evert E. DeBoer , Darryl C. Ryan
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04J3/085 , H04J2203/0053 , H04J2203/006 , H04L45/22 , H04L45/28 , H04L45/54 , H04L45/62 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0081 , H04Q2011/0092
摘要： Protection techniques within optical communication networks are extremely important. An alternative to a line protection scheme, as most current optical communication networks use, is to utilize a path protection technique in which working and protection paths that are desired are assigned during network setup. During normal operations, only the working path is configured within the network elements' switch fabric with protection paths being left unconfigured. If a failure indication is detected in the working path by a network element, a protection entry within a routing table of the network element is looked up to determine protection switching data that is required to switch the data traffic to the pre-assigned protection path. This protection switching data is inserted within the path overhead for the data traffic so that it can be communicated to all of the network elements that require their switch fabrics reconfigured to establish the protection path of communications. This protection technique allows for similar switching speed to that of line switching protection such as BLSR designs, but with an increase in efficiency in terms of protection bandwidth.
摘要翻译：光通信网络中的保护技术非常重要。线路保护方案的替代方案，正如大多数当前的光通信网络所使用的一样，是利用路径保护技术，其中在网络建立期间分配所期望的工作和保护路径。在正常操作期间，只有工作路径被配置在网络元件的交换结构中，保护路径保持未配置。如果通过网元在工作路径中检测到故障指示，则查找网元的路由表内的保护条目，以确定将数据业务切换到预先分配的保护路径所需的保护倒换数据。该保护切换数据被插入到数据业务的路径开销内，使得其可以被传送到需要重新配置其交换结构的所有网络元件以建立通信的保护路径。该保护技术允许与线路交换保护（例如BLSR设计）类似的切换速度，但是在保护带宽方面效率提高。

5. 发明授权

US07554905B2 Method and apparatus for routing a virtual concatenation group in a network 有权
标题翻译：在网络中路由虚拟级联组的方法和装置
公开(公告)号：US07554905B2
公开(公告)日：2009-06-30
申请号：US10843330
申请日：2004-05-12
申请人： Nicolas Benvenuti , David Steele , Dino Fatica
发明人： Nicolas Benvenuti , David Steele , Dino Fatica
IPC分类号： H04L12/26 , H04L12/28 , H04J3/04
CPC分类号： H04L45/26 , H04J2203/0053 , H04L45/00 , H04L45/24 , H04L45/42
摘要： A network control entity that has an input for receiving data indicative of an event associated with a first member of a virtual concatenation group transported through the network. The network control entity also has a processing entity for computing a new route for a second member of the virtual concatenation group, the computing being triggered by the event.
摘要翻译：一种网络控制实体，其具有用于接收表示与通过网络传输的虚拟级联组的第一成员相关联的事件的数据的输入。网络控制实体还具有用于为虚拟级联组的第二成员计算新路由的处理实体，该计算由事件触发。

6. 发明授权

US07551635B2 SONET method and system having network service access point addressing 有权
标题翻译： SONET方法和具有网络服务接入点寻址的系统
公开(公告)号：US07551635B2
公开(公告)日：2009-06-23
申请号：US12246678
申请日：2008-10-07
申请人： Arvind R. Mallya , Amit Rele , Rodney Bruner
发明人： Arvind R. Mallya , Amit Rele , Rodney Bruner
IPC分类号： H04L12/56
CPC分类号： H04J3/12 , H04J2203/0053 , H04L45/00
摘要： A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes electrically linked network elements (NEs) and first and second level routing areas which each include at least one NE. The NEs include devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET. The first level routing area and the second level routing areas are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and have a first level routing and having a second level routing for the NSAP addresses, respectively. Each NSAP address includes a Routing Domain field and an Area field filled with information indicative of a respective Internet Protocol (IP) address.
摘要翻译：具有多级网络服务接入点（NSAP）寻址的同步光网络（SONET）系统包括电连接的网元（NE）以及每个包括至少一个NE的第一和第二级路由区域。 NE包括具有相应NSAP地址的设备，并且至少一个NE是控制SONET的网络控制器。第一级路由区域和第二级路由区域基于作为第一级网元和第二级网元的NE的预定优先级，并且分别具有用于NSAP地址的第一级路由并具有第二级路由。每个NSAP地址包括路由域字段和填充有指示相应的因特网协议（IP）地址的信息的区域字段。

7. 发明申请

US20090034984A1 SONET METHOD AND SYSTEM HAVING NETWORK SERVICE ACCESS POINT ADDRESSING 有权
标题翻译：具有网络服务接入点寻址的SONET方法和系统
公开(公告)号：US20090034984A1
公开(公告)日：2009-02-05
申请号：US12246678
申请日：2008-10-07
申请人： Arvind R. Mallya , Amit Rele , Rodney Bruner
发明人： Arvind R. Mallya , Amit Rele , Rodney Bruner
IPC分类号： H04B10/00
CPC分类号： H04J3/12 , H04J2203/0053 , H04L45/00
摘要： A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes electrically linked network elements (NEs) and first and second level routing areas which each include at least one NE. The NEs include devices having respective NSAP addresses and at least one of the NEs is a network controller that controls the SONET. The first level routing area and the second level routing areas are based on a predetermined prioritization of the NEs as first level NEs and second level NEs, and have a first level routing and having a second level routing for the NSAP addresses, respectively. Each NSAP address includes a Routing Domain field and an Area field filled with information indicative of a respective Internet Protocol (IP) address.
摘要翻译：具有多级网络服务接入点（NSAP）寻址的同步光网络（SONET）系统包括电连接的网元（NE）以及每个包括至少一个NE的第一和第二级路由区域。 NE包括具有相应NSAP地址的设备，并且至少一个NE是控制SONET的网络控制器。第一级路由区域和第二级路由区域基于作为第一级网元和第二级网元的NE的预定优先级，并且分别具有用于NSAP地址的第一级路由并具有第二级路由。每个NSAP地址包括路由域字段和填充有指示相应的因特网协议（IP）地址的信息的区域字段。

8. 发明授权

US07447753B2 Communications network for self-determining its own topology 失效
标题翻译：通信网络用于自我确定自身的拓扑
公开(公告)号：US07447753B2
公开(公告)日：2008-11-04
申请号：US10469804
申请日：2002-03-06
申请人： Andrew James Barker
发明人： Andrew James Barker
IPC分类号： H04L12/28
CPC分类号： H04Q11/0478 , H04J2203/0051 , H04J2203/0053 , H04J2203/0055
摘要： A communications network determines for itself its own network topology, that is, the identity and interconnection of nodes comprising the network. The network comprises a plurality of nodes each having at least one port. The ports are interconnected in accordance with the network topology in which communication traffic is conveyed over the network via the interconnected ports. Each port is arranged to transmit first information within the communication traffic including the identity of the port (Section trace identity) from which the communication traffic originates. Second information is transmitted between nodes identifying which first information identity relates to which node and which port. A processor is operative for determining for each node from the first and second information the identity of adjacent nodes and the identity of the ports to which its ports are connected.
摘要翻译：通信网络本身确定其自身的网络拓扑，即，包括网络的节点的身份和互连。网络包括多个节点，每个节点具有至少一个端口。端口根据网络拓扑互连，其中通过互连端口在网络上传送通信业务。每个端口被布置成在通信业务中发送包括通信业务来源的端口（部分跟踪标识）的身份的第一信息。在识别哪个第一信息标识与哪个节点和哪个端口相关联的节点之间传送第二信息。处理器用于根据第一和第二信息确定相邻节点的身份和其端口所连接的端口的身份的每个节点。

9. 发明授权

US07414967B2 Method for route distribution in multi-service optimization of SDH transmission network 有权
标题翻译： SDH传输网多业务优化路由分配方法
公开(公告)号：US07414967B2
公开(公告)日：2008-08-19
申请号：US11082928
申请日：2005-03-17
申请人： Qi Ao , Liang Liu
发明人： Qi Ao , Liang Liu
IPC分类号： H04L29/04
CPC分类号： H04L45/00 , H04J3/085 , H04J2203/0042 , H04J2203/0053 , H04J2203/0071 , H04J2203/0073 , H04L12/4637 , H04L47/125
摘要： A method of route distribution for implementing multi-service optimization in Synchronous Digital Hierarchy Transmit Network comprises the following steps: A. dividing the SDH transmit network into subnets in term of rings to form a plurality of ring subnets, calculating initial routes of all services demand in the SDH transmit network; B. judging whether there are link resource overload between subnets and inside subnets respectively, if yes, recalculating the route; C. judging whether the load balance index is satisfied by ring subnet, if yes, performing route adjustment; D. after dividing the subnets into edge subnets and core subnets, judging whether the aggregative indicator of each link in the core subnets satisfies convergence condition, if no, checking whether the route calculation times exceeds the threshold, if yes, ending; otherwise, recalculating the corresponding routes.
摘要翻译：一种在同步数字体系发送网络中实现多业务优化的路由分配方法，包括以下步骤：A.将SDH发送网划分成子网，形成多个环形子网，计算所有业务需求的初始路由在SDH传输网络中; B.判断子网和内部子网之间是否存在链路资源过载，如果是，重新计算路由; C.判断负载平衡指标是否满足环形子网，如果是，执行路由调整; D.将子网划分为边缘子网和核心子网，判断核心子网中每个链路的聚合指标是否满足收敛条件，否则检查路由计算次数是否超过阈值，如果是，结束; 否则重新计算相应的路由。

10. 发明授权

US07342873B1 Efficient architectures for protection against network failures 有权
标题翻译：高效架构，防止网络故障
公开(公告)号：US07342873B1
公开(公告)日：2008-03-11
申请号：US09587892
申请日：2000-06-06
申请人： Ramesh Nagarajan
发明人： Ramesh Nagarajan
IPC分类号： H04L12/26
CPC分类号： H04Q11/0062 , H04J3/085 , H04J2203/0032 , H04J2203/0053 , H04J2203/006 , H04J2203/0098 , H04Q11/0478 , H04Q2011/0073 , H04Q2011/0083 , H04Q2011/0092
摘要： Traffic demands are routed between network elements so as to provide improved protection against network failures. A given traffic demand is routed from a first network element to a second network element, where the second network element is preferably either one of a set of dual-homed elements, or coupled to a dual-homed element, and may also be an element of a ring-type transport or a mesh-type transport. The second network element processes the traffic demand such that a copy of a signal associated with the demand is (i) retained at the second network element, while the signal is routed to at least one additional network element, or (ii) routed to at least one additional network element, while the signal is routed to at least one network element other than the additional network element. For example, in a multidrop connection implemented in accordance with the invention, a copy of the signal is “dropped” at the second network element and one or more additional network elements. In a multicast connection implemented in accordance with the invention, one or more copies of the signal are multicast from the second network element to multiple additional network elements.
摘要翻译：业务需求在网元之间进行路由，以提供改进的网络故障保护。给定的业务需求从第一网络元件路由到第二网络元件，其中第二网络元件优选地是一组双归属元件中的一个或耦合到双归属元件，并且还可以是元件的环型运输或网状运输。第二网络元件处理业务需求，使得与该需求相关联的信号的副本（i）保留在第二网络元件处，同时信号被路由到至少一个附加网元，或者（ii）被路由到至少一个额外的网络元件，而信号被路由到除了附加网络元件之外的至少一个网络元件。例如，在根据本发明实现的多点连接中，信号的副本在第二网络元件和一个或多个附加网络元件被“丢弃”。在根据本发明实现的多播连接中，信号的一个或多个副本从第二网络元件多播到多个附加网络元件。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式