公开(公告)号：WO2014022726A1

公开(公告)日：2014-02-06

申请号：PCT/US2013/053325

申请日：2013-08-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric, Michel

IPC: H04L12/703 ,  H04L12/723

CPC classification number: H04L45/18 ,  H04L45/02 ,  H04L45/12 ,  H04L45/1283 ,  H04L45/22 ,  H04L45/28 ,  H04L45/507

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology for reaching a destination device, the loop-free routing topology comprising distinct paths for reaching the destination device; generating a set of serialized representations describing the loop-free routing topology, each serialized representation describing a corresponding one of the paths; and propagating the set of serialized representations from the destination device to network nodes in the computing network, enabling the network nodes to establish loop-free label switched paths for reaching the destination device via the loop-free routing topology.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建用于到达目的地设备的无环路由拓扑，所述无环路由拓扑包括用于到达目的地设备的不同路径; 生成描述无环路由拓扑的一系列序列化表示，每个序列化表示描述对应的一个路径; 并将该集合的序列化表示从目的地设备传播到计算网络中的网络节点，使得网络节点能够建立无循环标签交换路径，以经由无环路由拓扑到达目的地设备。

公开(公告)号：WO2012162336A1

公开(公告)日：2012-11-29

申请号：PCT/US2012/039039

申请日：2012-05-23

Applicant: CISCO TECHNOLOGY, INC. ,  THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric, Michel

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric, Michel

IPC: H04L12/56 ,  H04L12/40

CPC classification number: H04L45/18 ,  H04L41/0803 ,  H04L45/02 ,  H04L45/14

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination device, each routing arc comprising a first network device as a first end of the routing arc, a second network device as a second end of the routing arc, and at least a third network device configured for routing any network traffic along the routing arc toward the destination device via any one of the first or second ends of the routing arc; and causing the network traffic to be forwarded along at least one of the routing arcs to the destination device.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建包括用于到达目的地设备的多个路由弧的无环路由拓扑，每个路由弧包括作为路由电弧的第一端的第一网络设备， 第二网络设备作为路由电弧的第二端，以及至少第三网络设备，被配置为经由所述路由电弧的所述第一或第二端中的任一个沿着所述路由电弧将任何网络业务路由到目的地设备; 并且使得网络业务沿着至少一个路由弧被转发到目的地设备。

公开(公告)号：WO2015088851A1

公开(公告)日：2015-06-18

申请号：PCT/US2014/068316

申请日：2014-12-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric

IPC: H04L12/703 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L41/0668 ,  H04L45/18 ,  H04L45/48 ,  H04L49/557

Abstract: A network includes multiple routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented away from a node initially holding a cursor toward one of first and second edge nodes through which the network traffic exits the arc. Each node includes a network device. The nodes in the arc detect a first failure in the arc. Responsive to the detecting the first failure, the nodes exchange first management frames over a data plane within the arc in order to transfer the cursor from the node initially holding the cursor to a first node proximate the first failure and reverse links in the arc as appropriate so that the network traffic in the arc is directed away from the first failure toward the first edge node of the arc through which the network traffic is able to exit the arc.

Abstract translation: 网络包括用于将网络流量路由到目的地的多个路由弧。 每个弧包括通过可逆的链接依次连接的节点，所述可逆链接朝向远离最初保持光标的节点朝向第一和第二边缘节点之一，网络业务通过该节点离开该弧。 每个节点包括网络设备。 弧中的节点检测到弧中的第一个故障。 响应于检测到第一故障，节点通过弧内的数据平面交换第一管理帧，以将光标从最初保持光标的节点传送到靠近第一故障的第一节点，并且适当地在弧中反向链接 使得电弧中的网络流量被引导离开第一故障朝向电弧的第一边缘节点，网络业务通过该第一边缘节点能够离开电弧。

公开(公告)号：WO2014043549A1

公开(公告)日：2014-03-20

申请号：PCT/US2013/059777

申请日：2013-09-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk

IPC: H04L12/711 ,  H04L12/703 ,  H04L12/705 ,  H04L12/723 ,  H04L12/715

CPC classification number: H04L45/18 ,  H04L12/4637 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L45/507 ,  H04L45/64 ,  H04L2012/421

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination network node, each routing arc comprising a first network node as a first end of the routing arc, a second network node as a second end of the routing arc, and at least a third network node configured for routing any network traffic along the routing arc toward the destination node via any one of the first or second ends of the routing arc, at least one of the first, second, or third network nodes are implemented as a ring-based network having a prescribed ring topology; and establishing loop- free label switched paths for reaching the destination network node via the routing arcs of the loop-free routing topology, the label switched paths independent and distinct from any attribute of the prescribed ring topology.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建包括用于到达目的地网络节点的多个路由弧的无环路由拓扑，每个路由弧包括作为路由电弧的第一端的第一网络节点， 第二网络节点作为路由电弧的第二端，以及至少第三网络节点，被配置为经由路由选择电弧的第一或第二端中的任一个路由沿路由选择电弧的任何网络业务，至少 第一，第二或第三网络节点之一被实现为具有规定的环形拓扑的基于环的网络; 并建立无循环的标签交换路径，通过无环路由拓扑的路由弧到达目的网络节点，标签交换路径与规定的环形拓扑的任何属性独立且不同。

公开(公告)号：EP2896165B1

公开(公告)日：2020-03-18

申请号：EP13770756.8

申请日：2013-09-13

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk

IPC: H04L12/723 ,  H04L12/707 ,  H04L12/715 ,  H04L12/703 ,  H04L12/705 ,  H04L12/42 ,  H04L12/46

公开(公告)号：EP2715989A1

公开(公告)日：2014-04-09

申请号：EP12789170.3

申请日：2012-05-23

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric, Michel

IPC: H04L12/56 ,  H04L12/40

CPC classification number: H04L45/18 ,  H04L41/0803 ,  H04L45/02 ,  H04L45/14

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination device, each routing arc comprising a first network device as a first end of the routing arc, a second network device as a second end of the routing arc, and at least a third network device configured for routing any network traffic along the routing arc toward the destination device via any one of the first or second ends of the routing arc; and causing the network traffic to be forwarded along at least one of the routing arcs to the destination device.

公开(公告)号：EP3157210B1

公开(公告)日：2018-08-22

申请号：EP16175949.3

申请日：2016-06-23

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  ANTEUNIS, Dirk ,  BELLAGAMBA, Patrice ,  WARD, David Delano

IPC: H04L12/743 ,  H04L12/801 ,  H04L12/751 ,  H04W28/08 ,  H04L12/803

CPC classification number: H04L47/11 ,  H04L47/125

Abstract: In one embodiment, a method comprises detecting a traffic condition by a network device in a loop-free routing topology comprising routing arcs for reaching a destination device, each routing arc comprising a first edge, a second edge, and at least a third network device configured for routing any network traffic along the routing arc toward the destination device and exiting via any one of the first or second edges of the routing arc, the traffic condition proximate to the first edge of at least one of the routing arcs in which the network device is positioned; and the network device initiating load balancing based on sending a management frame over a data plane of the at least one routing arc toward the corresponding second edge, the management frame requesting a change in load balancing for at least one of an identified traffic class based on the detected traffic condition.

公开(公告)号：EP2896165A1

公开(公告)日：2015-07-22

申请号：EP13770756.8

申请日：2013-09-13

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk

IPC: H04L12/711 ,  H04L12/703 ,  H04L12/705 ,  H04L12/723 ,  H04L12/715

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination network node, each routing arc comprising a first network node as a first end of the routing arc, a second network node as a second end of the routing arc, and at least a third network node configured for routing any network traffic along the routing arc toward the destination node via any one of the first or second ends of the routing arc, at least one of the first, second, or third network nodes are implemented as a ring-based network having a prescribed ring topology; and establishing loop-free label switched paths for reaching the destination network node via the routing arcs of the loop-free routing topology, the label switched paths independent and distinct from any attribute of the prescribed ring topology.

公开(公告)号：EP3157210A2

公开(公告)日：2017-04-19

申请号：EP16175949.3

申请日：2016-06-23

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  ANTEUNIS, Dirk ,  BELLAGAMBA, Patrice ,  WARD, David Delano

IPC: H04L12/743 ,  H04L12/801 ,  H04L12/751 ,  H04W28/08

CPC classification number: H04L47/11 ,  H04L47/125

Abstract: In one embodiment, a method comprises detecting a traffic condition by a network device in a loop-free routing topology comprising routing arcs for reaching a destination device, each routing arc comprising a first edge, a second edge, and at least a third network device configured for routing any network traffic along the routing arc toward the destination device and exiting via any one of the first or second edges of the routing arc, the traffic condition proximate to the first edge of at least one of the routing arcs in which the network device is positioned; and the network device initiating load balancing based on sending a management frame over a data plane of the at least one routing arc toward the corresponding second edge, the management frame requesting a change in load balancing for at least one of an identified traffic class based on the detected traffic condition.

Abstract translation: 在一个实施例中，一种方法包括在无环路由拓扑中检测网络设备的业务状况，其中包括用于到达目的地设备的路由弧，每个路由弧包括第一边缘，第二边缘和至少第三网络设备 被配置为沿着所述路由电弧向所述目的地设备路由任何网络业务，并且经由所述路由选择电弧的所述第一或第二边缘中的任一个路线退出，所述交通状况接近所述路由电弧中的至少一个路由电弧的第一边缘， 设备定位; 并且所述网络设备基于通过所述至少一个路由选择电弧的数据平面向相应的第二边缘发送管理帧来启动负载平衡，所述管理帧请求基于所识别的业务类别中的至少一个的负载均衡 检测到的交通状况。

公开(公告)号：EP3080956A1

公开(公告)日：2016-10-19

申请号：EP14819204.0

申请日：2014-12-03

Applicant: Cisco Technology, Inc.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  ANTEUNIS, Dirk ,  LEVY-ABEGNOLI, Eric

IPC: H04L12/703 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L41/0668 ,  H04L45/18 ,  H04L45/48 ,  H04L49/557

Abstract: A network includes multiple routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented away from a node initially holding a cursor toward one of first and second edge nodes through which the network traffic exits the arc. Each node includes a network device. The nodes in the arc detect a first failure in the arc. Responsive to the detecting the first failure, the nodes exchange first management frames over a data plane within the arc in order to transfer the cursor from the node initially holding the cursor to a first node proximate the first failure and reverse links in the arc as appropriate so that the network traffic in the arc is directed away from the first failure toward the first edge node of the arc through which the network traffic is able to exit the arc.

Abstract translation: 网络包括用于将网络流量路由到目的地的多个路由弧。 每个弧包括通过可逆的链接依次连接的节点，所述可逆链接朝向远离最初保持光标的节点朝向第一和第二边缘节点之一，网络业务通过该节点通过其退出弧。 每个节点包括网络设备。 弧中的节点检测到弧中的第一个故障。 响应于检测到第一故障，节点通过弧内的数据平面交换第一管理帧，以将光标从最初保持光标的节点传送到靠近第一故障的第一节点，并且适当地在弧中反向链接 使得电弧中的网络流量被引导离开第一故障朝向电弧的第一边缘节点，网络流量可以通过该第一边缘节点离开电弧。