公开(公告)号：US20070076719A1

公开(公告)日：2007-04-05

申请号：US11479694

申请日：2006-06-30

申请人： David Allan ,  Nigel Bragg ,  Marc Holness ,  Robert Friskney ,  Simon Parry

发明人： David Allan ,  Nigel Bragg ,  Marc Holness ,  Robert Friskney ,  Simon Parry

IPC分类号： H04L12/56

CPC分类号： H04L49/604 ,  H04L12/4662 ,  H04L12/66 ,  H04L45/22 ,  H04L45/28

摘要： An Ethernet virtual switched sub-network (VSS) is implemented as a virtual hub and spoke architecture overlaid on hub and spoke connectivity built of a combination of Provider Backbone Transport (spokes) and a provider backbone bridged sub-network (hub). Multiple VSS instances are multiplexed over top of the PBT/PBB infrastructure. A loop free resilient Ethernet carrier network is provided by interconnecting Provider Edge nodes through access sub-networks to Provider Tandems to form Provider Backbone Transports spokes with a distributed switch architecture of the Provider Backbone Bridged hub sub-network. Provider Backbone transport protection groups may be formed from the Provider Edge to diversely homed Provider Tandems by defining working and protection trunks through the access sub-network. The Provider Backbone Transport trunks are Media Access Control (MAC) addressable by the associated Provider Edge address or by a unique address associated with the protection group in the Provider Backbone Bridged network domain.

摘要翻译： 以太网虚拟交换子网（VSS）被实现为覆盖在由提供商骨干传输（辐射）和提供商骨干桥接子网（集线器））组合的集线器和辐条连接上的虚拟集线器和分支架构。 多个VSS实例在PBT / PBB基础结构的顶部进行复用。 通过将Provider Edge节点通过接入子网络互连到Provider Tandem来提供无循环的弹性以太网运营商网络，以形成具有提供商骨干桥接子网络的分布式交换机架构的Provider Backbone Transports辐条。 提供商骨干传输保护组可以通过在接入子网中定义工作和保护中继，从提供商边缘形成多样化的提供商串联。 提供商骨干传输干线是可由相关联的提供商边缘地址寻址的媒体访问控制（MAC）或通过与提供商骨干桥接网络域中的保护组相关联的唯一地址。

公开(公告)号：US08369330B2

公开(公告)日：2013-02-05

申请号：US11479694

申请日：2006-06-30

申请人： David Allan ,  Nigel Bragg ,  Marc Holness ,  Robert Friskney ,  Simon Parry

发明人： David Allan ,  Nigel Bragg ,  Marc Holness ,  Robert Friskney ,  Simon Parry

IPC分类号： H04L12/28

CPC分类号： H04L49/604 ,  H04L12/4662 ,  H04L12/66 ,  H04L45/22 ,  H04L45/28

摘要： An Ethernet virtual switched sub-network (VSS) is implemented as a virtual hub and spoke architecture overlaid on hub and spoke connectivity built of a combination of Provider Backbone Transport (spokes) and a provider backbone bridged sub-network (hub). Multiple VSS instances are multiplexed over top of the PBT/PBB infrastructure. A loop free resilient Ethernet carrier network is provided by interconnecting Provider Edge nodes through access sub-networks to Provider Tandems to form Provider Backbone Transports spokes with a distributed switch architecture of the Provider Backbone Bridged hub sub-network. Provider Backbone transport protection groups may be formed from the Provider Edge to diversely homed Provider Tandems by defining working and protection trunks through the access sub-network. The Provider Backbone Transport trunks are Media Access Control (MAC) addressable by the associated Provider Edge address or by a unique address associated with the protection group in the Provider Backbone Bridged network domain.

公开(公告)号：US20100238813A1

公开(公告)日：2010-09-23

申请号：US11477975

申请日：2006-06-29

申请人： David Allan ,  Nigel Bragg ,  Marc Holness

发明人： David Allan ,  Nigel Bragg ,  Marc Holness

IPC分类号： H04L12/28 ,  H04L12/26

CPC分类号： H04L41/0668 ,  H04L12/437 ,  H04L12/4641 ,  H04L12/465 ,  H04L2012/421

摘要： A resilient virtual Ethernet ring has nodes interconnected by working and protection paths. Each node has a set of VLAN IDs (VIDs) for tagging traffic entering the ring by identifying the ingress node and whether the traffic is on the working or protection path. MAC addresses are learned in one direction around the ring. A port aliasing module records in a forwarding table a port direction opposite to a learned port direction. Each node can also cross-connect working and protection paths. If a span fails, the two nodes immediately on either side of the failure are cross-connected to fold the ring working-path traffic is cross-connected onto the protection path at the first of the two nodes and is then cross-connected back onto the working path at the second of the two nodes so that traffic always ingresses and egresses the ring from the working path.

摘要翻译： 一个有弹性的虚拟以太网环具有通过工作和保护路径互连的节点。 每个节点都有一组VLAN ID（VID），用于通过识别入口节点来识别进入环的流量，以及流量是否在工作或保护路径上。 MAC地址是围绕环的一个方向学习的。 端口混叠模块在转发表中记录与学习端口方向相反的端口方向。 每个节点还可以交叉连接工作​​和保护路径。 如果跨度故障，则立即在故障两侧的两个节点交叉连接以折叠环工作路径业务交叉连接到两个节点中的第一个的保护路径上，然后交叉连接回 在两个节点的第二个处的工作路径，使得流量总是从工作路径进入和离开环。

公开(公告)号：US08787398B2

公开(公告)日：2014-07-22

申请号：US13388780

申请日：2009-07-31

申请人： Marc Holness ,  Bashar Abdullah ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

发明人： Marc Holness ,  Bashar Abdullah ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

IPC分类号： H04L12/28

CPC分类号： H04L12/437 ,  H04L45/28 ,  H04L45/50

摘要： A system for controlling packet forwarding through a point-to-point (p2p) connection between first and second end nodes of a packet network domain having a mesh topology. The system comprises a sub-ring network instantiated in the network domain, the sub-ring network comprising a pair of topologically diverse ring spans extending between the first and second end nodes. Each of the end nodes is controlled to forward packets of the p2p connection through the sub-ring network in accordance with a ring network routing scheme, and an intermediate node traversed by one of the ring spans is controlled to forward packets of the p2p connection through the ring span in accordance with a linear path routing scheme.

摘要翻译： 一种用于通过具有网状拓扑的分组网络域的第一和第二端节点之间的点对点（p2p）连接来控制分组转发的系统。 该系统包括在网络域中实例化的子环网络，子环网络包括在第一和第二端节点之间延伸的一对拓扑不同的环跨。 根据环网路由方案，对每个终端节点进行控制，通过子环网转发p2p连接的数据包，并控制由其中一个环网跨越的中间节点转发p2p连接的数据包 环形根据线性路径路由方案。

公开(公告)号：US20120281710A1

公开(公告)日：2012-11-08

申请号：US13388780

申请日：2009-07-31

申请人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

发明人： Marc Holness ,  Abdullah Bashar ,  Marc-Andre Rochon ,  Simon Parry ,  Chris Ramsden

IPC分类号： H04L12/28

CPC分类号： H04L12/437 ,  H04L45/28 ,  H04L45/50

摘要： A system for controlling packet forwarding through a point-to-point (p2p) connection between first and second end nodes of a packet network domain having a mesh topology. The system comprises a sub-ring network instantiated in the network domain, the sub-ring network comprising a pair of topologically diverse ring spans extending between the first and second end nodes. Each of the end nodes is controlled to forward packets of the p2p connection through the sub-ring network in accordance with a ring network routing scheme, and an intermediate node traversed by one of the ring spans is controlled to forward packets of the p2p connection through the ring span in accordance with a linear path routing scheme.

摘要翻译： 一种用于通过具有网状拓扑的分组网络域的第一和第二端节点之间的点对点（p2p）连接来控制分组转发的系统。 该系统包括在网络域中实例化的子环网络，子环网络包括在第一和第二端节点之间延伸的一对拓扑不同的环跨。 根据环网路由方案，对每个终端节点进行控制，通过子环网转发p2p连接的数据包，并控制由其中一个环网跨越的中间节点转发p2p连接的数据包 环形根据线性路径路由方案。

公开(公告)号：US10425153B2

公开(公告)日：2019-09-24

申请号：US14990137

申请日：2016-01-07

申请人： Marc Holness ,  Stephen Daniel Shew ,  David Gilson

发明人： Marc Holness ,  Stephen Daniel Shew ,  David Gilson

IPC分类号： H04B10/03 ,  H04L12/43 ,  H04L12/931 ,  H04L12/707 ,  H04Q11/00 ,  H04B10/032 ,  H04L12/437 ,  H04J3/16 ,  H04L12/42 ,  H04L12/64

摘要： Systems and methods for ring protection switching in a network based on selectively blocking and unblocking a port include forwarding traffic via the port over a data channel that utilizes a first service identifier, wherein the data channel is routed in the network along a closed loop; and selectively blocking and unblocking traffic on the port to provide the ring protection switching over the closed loop, wherein the selectively blocking and unblocking is performed based on a management channel that utilizes a second service identifier that is a different type from the first service identifier.

公开(公告)号：US09781048B2

公开(公告)日：2017-10-03

申请号：US14622989

申请日：2015-02-16

申请人： Marc Holness ,  David Wright Martin

发明人： Marc Holness ,  David Wright Martin

IPC分类号： H04L12/805 ,  H04L12/813 ,  H04L5/00 ,  H04L12/707

CPC分类号： H04L47/365 ,  H04L5/0064 ,  H04L45/24 ,  H04L47/20

摘要： A method, a network, and a network element use dynamic packet traffic performance adjustment techniques. In an exemplary embodiment, the dynamic resizing techniques utilize different packet connections providing connectivity to same sites between which bandwidth resizing is needed. Each of the packet connections has a separate and independent bandwidth profile that governs an amount of traffic that is dispatched over each packet connection. A network element sourcing traffic into the packet connections uses bridge functionality that dispatches client traffic onto all of the packet connections or an individual packet connection. This effectively means that the transport network bandwidth utilization is only consumed by a single packet connection, i.e., the packet connection-A (even through there are multiple configured). The network element sinking the traffic selects from a single active packet connection.

公开(公告)号：US20150207668A1

公开(公告)日：2015-07-23

申请号：US14161776

申请日：2014-01-23

申请人： Geraldine Ruth Civil ,  Marc Holness

发明人： Geraldine Ruth Civil ,  Marc Holness

IPC分类号： H04L12/24

CPC分类号： H04L41/0654 ,  H04L12/413 ,  H04L12/437 ,  H04L12/4637 ,  H04L29/14 ,  H04L41/0659 ,  H04L43/0811 ,  H04L45/28 ,  H04L2012/421

摘要： A method, network element, and network provide detecting a failure on both ports of a major ring at a network element that has an interconnecting sub-ring terminating thereon; causing a block at an associated sub-ring termination port of the interconnecting sub-ring responsive to the failure on both the ports of the major ring; and monitoring the failure and clearing the block responsive to a recovery of one or both ports from the failure. The method, network, and network element include G.8032 multiple concurrent or simultaneous fault recovery mechanisms that traffic being transported between an interconnected major ring and a sub-ring to be successfully delivered in the event of dual concurrent faults on the major ring.

摘要翻译： 一种方法，网络元件和网络提供了在其上终止有互连子环的网元的主环的两个端口上检测到故障; 在主环的两个端口上的故障响应于互连子环的相关子环终止端口处的块; 并且响应于从故障恢复一个或两个端口来监视故障并清除该块。 方法，网络和网络元素包括G.8032多个并发或同时故障恢复机制，在主环上发生双重并发故障的情况下，在互连主环和子环之间传输的流量将成功传送。

公开(公告)号：US08509061B2

公开(公告)日：2013-08-13

申请号：US13070098

申请日：2011-03-23

申请人： Marc Holness ,  Jie Hu

发明人： Marc Holness ,  Jie Hu

IPC分类号： H04L12/56 ,  H04L12/24

CPC分类号： H04L12/437

摘要： The present disclosure provides systems and methods for scaling performance of Ethernet Ring Protection Protocol. Specifically, the systems and methods may apply to G.8032 and may provide protection switching control plane performance scaling benefits. In an exemplary embodiment, the present invention summarizes the per “virtual” ring control plane protocol into a single logical ring control plane protocol. Advantageously, the present invention transforms the G.8032 protocol from a per-virtual ring protocol to a per-logical ring control protocol. The mechanism/methodology that is used is to include minimal per-virtual ring instance information in to the Ring Automated Protection Switching (R-APS) (control) frames. Additionally, the present invention cleanly decouples the placement of the R-APS (control) channel block location on the ring from that of the virtual channel data blocks. Current G.8032 specifications tightly couple the location of each R-APS (control) channel block and the virtual channel block that it is managing.

摘要翻译： 本公开提供了用于缩放以太网环保护协议的性能的系统和方法。 具体来说，系统和方法可能适用于G.8032，并可提供保护切换控制平面性能扩展的好处。 在示例性实施例中，本发明将每个“虚拟”环控制平面协议总结为单个逻辑环控制平面协议。 有利地，本发明将G.8032协议从每虚拟环协议转换为每逻辑环控制协议。 使用的机制/方法是将最小的每个虚拟环形实例信息包括在环自动保护倒换（R-APS）（控制）帧中。 此外，本发明将环上的R-APS（控制）信道块位置的布置与虚拟信道数据块的位置干净地去耦。 目前的G.8032规范紧密耦合每个R-APS（控制）信道块的位置和它所管理的虚拟通道块。

公开(公告)号：US20120092985A1

公开(公告)日：2012-04-19

申请号：US12907165

申请日：2010-10-19

申请人： Ross Caird ,  Michael Watford ,  Onder Yazar ,  Marc Holness

发明人： Ross Caird ,  Michael Watford ,  Onder Yazar ,  Marc Holness

IPC分类号： G06F11/00

CPC分类号： H04L45/22 ,  H04L41/0213 ,  H04L41/0663 ,  H04L43/0811 ,  H04L45/245 ,  H04L45/28 ,  Y02D50/30

摘要： The present disclosure provides protection systems and methods for Ethernet ports. In particular, the present invention may provide a form of facility protection for any two facilities, located on any two cards. The facilities are provisioned as a protected pair and using automatic ITU-T Y.1731 control frames for control. In an exemplary embodiment, provisioning includes creation of an L2 protection service and associating it to a pair of facilities. One facility is identified as a working facility and the other as a protection facility. Under normal conditions (i.e., no facility fault), the working facility is in an active state and not conditioning while the protection facility is in a standby state and transmitting conditioning to subtending equipment. If a facility fault is detected at the working facility, then the working facility transmits condition Remote Fault (RF) and the protection facility removes it's transmit conditioning and becomes the active facility.

摘要翻译： 本公开提供了用于以太网端口的保护系统和方法。 特别地，本发明可以为位于任何两张卡上的任何两个设施提供一种设施保护形式。 这些设施被配置为受保护对，并使用自动的ITU-T Y.1731控制帧进行控制。 在示例性实施例中，供应包括创建L2保护服务并将其与一对设施相关联。 一个设施被确定为工作设施，另一个设施被确定为保护设施。 在正常情况下（即没有设备故障），工作设备处于活动状态，而不是在保护设备处于待机状态时进行调理，并且将调理传送到对准设备。 如果在工作场所检测到设备故障，则工作设备传送条件远程故障（RF），保护设备将其发送调理移除，成为主动设备。