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

US08289859B2 Link delay determination using virtual concatenation 有权
标题翻译：使用虚拟级联的链路延迟确定
公开(公告)号：US08289859B2
公开(公告)日：2012-10-16
申请号：US10853422
申请日：2004-05-25
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： G08C15/00 , H04J3/06
CPC分类号： H04L43/0858 , H04J2203/0094
摘要： Link delay is determined in a network comprising a plurality of nodes by identifying pairs of nodes associated with a given link, and, for each of the identified pairs, setting up a virtually-concatenated group (VCG) between the nodes of that pair. The VCGs are utilized to make delay measurements, and the delay measurements are processed to determine delay of the given link. In an illustrative embodiment, the VCGs comprise two-member VCGs with the members being routed on opposite sides of a logical ring. For a given one of these two-member VCGs, a differential delay measurement is made at a particular one of the associated nodes by comparing frame indicator fields for concurrently arriving frames. A system of equations is generated based on the differential delay measurements made utilizing the VCGs, and the system of equations is solved to obtain information utilizable to determine delay of the given link.
摘要翻译：通过识别与给定链路相关联的节点对，在包括多个节点的网络中确定链路延迟，并且对于每个所识别的对，在该对的节点之间建立虚连接的组（VCG）。 VCG用于进行延迟测量，并且处理延迟测量以确定给定链路的延迟。在说明性实施例中，VCG包括两个成员的VCG，其中该成员被路由在逻辑环的相对侧上。对于这两个成员VCG中的给定的一个，通过比较并发到达的帧的帧指示符字段，在相关节点的特定一个处进行差分延迟测量。基于使用VCG进行的差分延迟测量产生方程组，求解方程组以获得可用于确定给定链路延迟的信息。

2. 发明授权

US07864690B2 System and method for rerouting circuits on SONET and SDH rings without disrupting service 有权
标题翻译：在SONET和SDH环路上重新路由电路的系统和方法，不会中断服务
公开(公告)号：US07864690B2
公开(公告)日：2011-01-04
申请号：US10637289
申请日：2003-08-08
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： H04L1/00
CPC分类号： H04J3/085
摘要： A system and method for rerouting circuits on a SONET, SDH or similar ring without disrupting service. In one embodiment, the system includes: (1) a route design subsystem adapted to identify, for the circuits, alternative routes that are subject to an alignment constraint and increase an objective value associated with the ring and (2) a path migration subsystem, associated with the route design subsystem, adapted to determine a hitless migration sequence that allows the alternative routes to be employed.
摘要翻译：用于在SONET，SDH或类似环路上重新路由电路而不中断服务的系统和方法。在一个实施例中，系统包括：（1）路由设计子系统，适于为电路识别经受对准约束的替代路由并增加与环相关联的目标值，以及（2）路径迁移子系统，与路由设计子系统相关联，适于确定允许替代路由被使用的无中继迁移序列。

3. 发明授权

US07518990B2 Route determination method and apparatus for virtually-concatenated data traffic 有权
标题翻译：用于虚拟级联数据流量的路由确定方法和装置
公开(公告)号：US07518990B2
公开(公告)日：2009-04-14
申请号：US10745881
申请日：2003-12-26
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： G01R31/08
CPC分类号： H04L45/00 , H04L45/22
摘要： Virtually-concatenated data traffic is routed in a network comprising at least first and second nodes. The first and second nodes may comprise a source-sink node pair, an ingress-egress node pair, or any other pair of network nodes. For a given traffic demand, a plurality of routes for routing the traffic demand through the network are determined. Each of the routes corresponds to a member of a virtually-concatenated group, such that different portions of the traffic demand are assigned to different members of the virtually-concatenated group.
摘要翻译：几乎连接的数据业务在包括至少第一和第二节点的网络中路由。第一和第二节点可以包括源 - 汇节点对，入口出口节点对或任何其它对的网络节点。对于给定的业务需求，确定用于通过网络路由业务需求的多条路由。每个路由对应于虚拟级联组的成员，使得业务需求的不同部分被分配给虚拟级联组的不同成员。

4. 发明授权

US07317728B2 System and method for increasing provisionable bandwidth in time-division multiplexed communication links 有权
标题翻译：用于在时分复用通信链路中增加可用带宽的系统和方法
公开(公告)号：US07317728B2
公开(公告)日：2008-01-08
申请号：US10374871
申请日：2003-02-25
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： H04L12/43
CPC分类号： H04L12/5602 , H04J2203/0067 , Y10S370/907
摘要： A system for and method of, increasing provisionable bandwidth in a multiplexed communication link and a network management system incorporating the system or the method. In one embodiment, the system includes: (1) a defragmentation calculator that calculates a defragmentation of the communication link, the defragmentation containing at least one granularity, (2) a candidate slot selector, associated with the defragmentation calculator, that finds reduced cost candidate slots for the at least one granularity and (3) a circuit mover, associated with the candidate slot selector, that identifies target slots into which circuits occupying the candidate slots can be moved.
摘要翻译：一种用于增加复用通信链路中可配置带宽的系统和方法，以及包含该系统或方法的网络管理系统。在一个实施例中，系统包括：（1）碎片整理计算器，其计算通信链路的碎片整理，包含至少一个粒度的碎片整理;（2）与碎片整理计算器相关联的候选时隙选择器，其找到降低的成本候选用于至少一个粒度的时隙和（3）与候选时隙选择器相关联的电路移动器，其识别占据候选时隙的电路可以移动到其中的目标时隙。

5. 发明授权

US07872976B2 System and method for multi-protocol label switching network tuning 有权
标题翻译：多协议标签交换网络调优的系统和方法
公开(公告)号：US07872976B2
公开(公告)日：2011-01-18
申请号：US10428464
申请日：2003-05-02
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J3/14 , H04L1/00
CPC分类号： H04L45/50 , H04L45/00 , H04L45/38
摘要： A system for and method of multi-protocol label switching (MPLS) network tuning. In one embodiment, the system includes a hot zone clearing subsystem that recursively identifies label switched paths (LSPs) to be rerouted from a defined hot zone subject to edges to be avoided. In that embodiment, the system further includes an LSP ordering subsystem, which is coupled to the hot zone clearing subsystem, that orders the LSPs to be rerouted to yield a migration sequence. The migration sequence is employable to reduce a load of the hot zone.
摘要翻译：一种多协议标签交换（MPLS）网络调优的方法及方法。在一个实施例中，系统包括热区清除子系统，其递归地标识要从要避免的边缘的定义的热区域重新路由的标签交换路径（LSP）。在该实施例中，系统还包括耦合到热区清除子系统的LSP排序子系统，其命令要重新路由的LSP以产生迁移序列。迁移顺序可用于减少热区的负荷。

6. 发明授权

US07813270B2 Route precomputation method and apparatus for bandwidth guaranteed traffic 有权
标题翻译：路由预先计算方法和带宽保证流量的设备
公开(公告)号：US07813270B2
公开(公告)日：2010-10-12
申请号：US10438431
申请日：2003-05-15
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： H04J1/16
CPC分类号： H04L45/00 , H04L45/42
摘要： A maximum-flow based route precomputation algorithm includes at least a route generation phase and a route selection phase, and determines one or more routes between at least a given pair of nodes in a network. In the route generation phase, a maximum-flow algorithm is applied to a first set of information characterizing links between the given pair of nodes in the network. The output of the maximum-flow algorithm is utilizable to generate a second set of information characterizing corresponding admissible flows. In the route selection phase, one or more routes are determined based on the second set of information using, for example, a shortest widest path (SWP) algorithm. The route generation and route selection phases may be repeated for each of a plurality of node pairs of the network.
摘要翻译：基于最大流的路由预计算算法至少包括路由产生阶段和路由选择阶段，并确定网络中至少一给定对节点之间的一个或多个路由。在路由产生阶段，最大流算法应用于表征网络中给定的一对节点之间的链路的第一组信息。最大流量算法的输出可用于生成表征对应允许流的第二组信息。在路由选择阶段，使用例如最短最宽路径（SWP）算法，基于第二组信息来确定一个或多个路由。可以为网络的多个节点对中的每一个重复路由生成和路由选择阶段。

7. 发明申请

US20050030901A1 System and method for rerouting circuits on SONET and SDH rings without disrupting service 有权
标题翻译：在SONET和SDH环路上重新路由电路的系统和方法，不会中断服务
公开(公告)号：US20050030901A1
公开(公告)日：2005-02-10
申请号：US10637289
申请日：2003-08-08
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： H04J3/08 , H04L12/26
CPC分类号： H04J3/085
摘要： A system and method for rerouting circuits on a SONET, SDH or similar ring without disrupting service. In one embodiment, the system includes: (1) a route design subsystem adapted to identify, for the circuits, alternative routes that are subject to an alignment constraint and increase an objective value associated with the ring and (2) a path migration subsystem, associated with the route design subsystem, adapted to determine a hitless migration sequence that allows the alternative routes to be employed.
摘要翻译：用于在SONET，SDH或类似环路上重新路由电路而不中断服务的系统和方法。在一个实施例中，系统包括：（1）路由设计子系统，适于为电路识别经受对准约束的替代路由并增加与环相关联的目标值，以及（2）路径迁移子系统，与路由设计子系统相关联，适于确定允许替代路由被使用的无中继迁移序列。

8. 发明授权

US07426186B2 Data path provisioning in a reconfigurable data network 有权
标题翻译：可重配置数据网络中的数据路径配置
公开(公告)号：US07426186B2
公开(公告)日：2008-09-16
申请号：US10345612
申请日：2003-01-16
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： G01R31/08
CPC分类号： H04L45/04 , H04L45/124
摘要： A method for data path provisioning in a reconfigurable data network is disclosed. A data path between a source IP router and a destination IP router is determined taking into account the IP-subnets of the network interfaces of the IP routers included in the path. In one embodiment, the requirement that two IP routers can send packets via their connected interface if and only if the two interfaces are on the same subnet (i.e., the subnet constraint) is completely honored during the data path determination. In another embodiment, the data path is determined while allowing some number of violations of the subnet constraint. A transform network graph is computed and is used to determine the data path taking into account the IP-subnets.
摘要翻译：公开了一种用于在可重配置数据网络中的数据路径供应的方法。源IP路由器和目的地IP路由器之间的数据路径被考虑到路径中包括的IP路由器的网络接口的IP子网被确定。在一个实施例中，当且仅当两个接口在同一子网（即，子网约束）上时，两个IP路由器可以经由其连接的接口发送分组的要求在数据路径确定期间被完全兑现。在另一个实施例中，确定数据路径，同时允许一些数量的违反子网约束。计算变换网络图，并用于确定考虑到IP子网的数据路径。

9. 发明授权

US07411900B2 Fast restoration for virtually-concatenated data traffic 有权
标题翻译：快速恢复虚拟连接的数据流量
公开(公告)号：US07411900B2
公开(公告)日：2008-08-12
申请号：US10446220
申请日：2003-05-28
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： G01R31/08
CPC分类号： H04J3/1611 , H04J2203/006 , H04J2203/0094 , Y10S370/907
摘要： Techniques are disclosed for restoration of virtually-concatenated data traffic in a data transmission network. A virtually-concatenated group is formed comprising: (i) a plurality of primary members each associated with a corresponding data stream, and (ii) at least one backup member. Each of the plurality of primary members and the backup member of the virtually-concatenated group may be assigned a corresponding one of a plurality of data transmission routes between first and second nodes of the network. Responsive to a failure of a given one of the plurality of primary members, the backup member is utilized for restoring at least a portion of the data traffic of the given member. The invention also provides a modified link capacity adjustment scheme (LCAS) protocol which substantially reduces the time required to report changes in member status information from a sink node to a source node, thereby substantially reducing the amount of time required to perform a restoration operation.
摘要翻译：公开了用于在数据传输网络中恢复虚连接的数据业务的技术。形成了一个虚拟连接的组，包括：（i）多个主要成员，每个主要成员与相应的数据流相关联，和（ii）至少一个备份成员。可以为虚拟级联组的多个主要成员和备份成员中的每一个分配网络的第一和第二节点之间的多个数据传输路由中的相应一个。响应于多个主要成员中给定的一个成员的故障，备用成员被用于恢复给定成员的数据业务的至少一部分。本发明还提供了修改的链路容量调整方案（LCAS）协议，其大大减少了从汇聚节点向源节点报告成员状态信息的变化所需的时间，从而显着减少了执行恢复操作所需的时间量。

10. 发明申请

US20050265251A1 Link delay determination using virtual concatenation 有权
标题翻译：使用虚拟级联的链路延迟确定
公开(公告)号：US20050265251A1
公开(公告)日：2005-12-01
申请号：US10853422
申请日：2004-05-25
申请人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
发明人： Swarup Acharya , Bhawna Gupta , Pankaj Risbood , Anurag Srivastava
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L43/0858 , H04J2203/0094
摘要： Link delay is determined in a network comprising a plurality of nodes by identifying pairs of nodes associated with a given link, and, for each of the identified pairs, setting up a virtually-concatenated group (VCG) between the nodes of that pair. The VCGs are utilized to make delay measurements, and the delay measurements are processed to determine delay of the given link. In an illustrative embodiment, the VCGs comprise two-member VCGs with the members being routed on opposite sides of a logical ring. For a given one of these two-member VCGs, a differential delay measurement is made at a particular one of the associated nodes by comparing frame indicator fields for concurrently arriving frames. A system of equations is generated based on the differential delay measurements made utilizing the VCGs, and the system of equations is solved to obtain information utilizable to determine delay of the given link.
摘要翻译：通过识别与给定链路相关联的节点对，在包括多个节点的网络中确定链路延迟，并且对于每个所识别的对，在该对的节点之间建立虚连接的组（VCG）。 VCG用于进行延迟测量，并且处理延迟测量以确定给定链路的延迟。在说明性实施例中，VCG包括两个成员的VCG，其中该成员被路由在逻辑环的相对侧上。对于这两个成员VCG中的给定的一个，通过比较并发到达的帧的帧指示符字段，在相关节点的特定一个处进行差分延迟测量。基于使用VCG进行的差分延迟测量产生方程组，求解方程组以获得可用于确定给定链路延迟的信息。

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