公开(公告)号：US20090168647A1

公开(公告)日：2009-07-02

申请号：US12344362

申请日：2008-12-26

申请人： Marc Holness ,  Abdullah Bashar

发明人： Marc Holness ,  Abdullah Bashar

IPC分类号： H04L12/24 ,  H04L12/28

CPC分类号： H04L12/437

摘要： Interworking an Ethernet Ring network with an Ethernet network with traffic engineered trunks (PBT network) enables traffic engineered trunks to be dual homed to the Ethernet ring network to enable for protection switching between active and backup trunk paths in the PBT network. In one embodiment, the active path will terminate at a first bridge node on the Ethernet ring network and the backup path will terminate at a second bridge node on the Ethernet ring network. Trunk state information is exchanged between the bridge nodes to enable the bridge nodes to determine which of the active and backup paths should be used to forward data on the trunk. Upon a change in trunk state, a flush message is transmitted on the Ethernet ring network to enable the nodes on the Ethernet ring network to relearn the path to the new responsible bridge node.

摘要翻译： 将以太网环网与具有流量工程中继线（PBT网络）的以太网环网互通使得流量工程中继线能够双重归属到以太网环网，以实现PBT网络中主备和中继路径之间的保护倒换。 在一个实施例中，活动路径将终止在以太网环网上的第一网桥节点处，并且备用路径将终止在以太网环网上的第二网桥节点处。 中继线状态信息在网桥节点之间进行交换，以使桥接节点能够确定哪个主动和备用路径应用于在中继线上转发数据。 在中继状态发生变化时，以太网环网上会发送刷新消息，使以太网环网上的节点重新获取新负责的桥接节点的路径。

公开(公告)号：US20060031482A1

公开(公告)日：2006-02-09

申请号：US11137015

申请日：2005-05-25

申请人： Dinesh Mohan ,  Marc Holness

发明人： Dinesh Mohan ,  Marc Holness

IPC分类号： G06F15/173 ,  G06F11/00

CPC分类号： G06F11/0772 ,  H04L12/4641 ,  H04L41/0631 ,  H04L41/0663 ,  H04L41/0677 ,  H04L41/0686 ,  Y02D30/30

摘要： Connectivity fault notification is provided by generating an alarm indication signal at a device that is logically adjacent to the fault, and forwarding the alarm indication signal upward through various levels to at least one client level entity. The alarm indication signal may be suppressed at any level for a service instance if service is restored at that level, or if a protection path prevents disruption of the service instance at that level, or auto-suppressed at an originating node based on number of times transmitted or elapsed time. The alarm indication signal may include a point of failure indicator such as the MAC address of the device that generates the alarm indication signal, or a failed resource identity such as an IEEE 802.1AB LLDP MAC Service Access Point (“MSAP”). Further, the alarm indication signal may be employed to trigger use of the protection path.

摘要翻译： 通过在与故障逻辑上相邻的设备处产生报警指示信号，并将报警指示信号向上通过各种级别转发到至少一个客户端级实体来提供连接故障通知。 如果服务在该级别被恢复，或者如果保护路径防止在该级别的服务实例的中断或者在始发节点处基于次数自动抑制，则可以在服务实例的任何级别上抑制警报指示信号 传送或消逝时间。 报警指示信号可以包括诸如生成报警指示信号的设备的MAC地址或诸如IEEE 802.1AB LLDP MAC服务接入点（“MSAP”）之类的故障资源标识的故障点指示器。 此外，可以采用报警指示信号来触发保护路径的使用。

公开(公告)号：US20050071453A1

公开(公告)日：2005-03-31

申请号：US10741909

申请日：2003-12-19

申请人： Donald Ellis ,  Marc Holness ,  Paul Littlewood

发明人： Donald Ellis ,  Marc Holness ,  Paul Littlewood

IPC分类号： G06F15/173

CPC分类号： H04L43/00 ,  H04L41/0213 ,  H04L41/0631 ,  H04L41/5009 ,  H04L43/04

摘要： Described are a system and method for managing a service transported over a transport network. Service traffic is transmitted from a first network element to a second network element over a transport network. If one of the network elements detects a condition occurring in the transport network, the network element determines each service affected by the condition. Service traffic performance is measured at each of the first and second network elements. Each network element correlates its measure service traffic performance and the service to produce a performance of service (PoS) service metric. Each network element transmits its measured PoS service metric to the other network element over a service management channel. This enables each network element to correlate both performance (SPC) and fault (SFC) for both near and far end service metrics and enables a complete end to end service definition in support of a service level agreement (SLA).

摘要翻译： 描述了用于管理通过传输网络传送的服务的系统和方法。 服务流量通过传输网络从第一网络元件传输到第二网络元件。 如果网络元素中的一个检测到传输网络中发生的情况，则网络元件确定受条件影响的每个服务。 在第一和第二网络元件中的每一个处测量服务流量性能。 每个网元将其测量业务流量性能与业务相关联，以产生业务性能（PoS）业务量度。 每个网络元件通过服务管理信道将其测量的PoS服务度量发送到另一个网络元件。 这使得每个网络元件能够将近端和远端服务度量的性能（SPC）和故障（SFC）相关联，并实现完整的端到端服务定义以支持服务级别协议（SLA）。

公开(公告)号：US20050068890A1

公开(公告)日：2005-03-31

申请号：US10741296

申请日：2003-12-19

申请人： Donald Ellis ,  Paul Littlewood ,  Marc Holness

发明人： Donald Ellis ,  Paul Littlewood ,  Marc Holness

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L43/00 ,  H04L41/0631 ,  H04L41/5003 ,  H04L41/5009 ,  H04L41/5012 ,  H04L43/062 ,  H04L43/065

摘要： Described are a system and method for managing a service transported over a transport network between first and second service termination points. Packet traffic associated with the service is received at a service termination point connected to the transport network. Performance of the packet traffic is measured at the service termination point. The measured performance of the packet traffic and the service are correlated to produce a performance of service (PoS) service metric. Based on the PoS service metric, other service metrics associated with the service are correlated, including a rate of service (RoS) service metric and availability of service (AoS) service metric. These service metrics can be used to develop service level agreement (SLA) and service level metrics that define the operation of the service and operation of the network supporting those services.

摘要翻译： 描述了一种用于管理在第一和第二服务终止点之间通过传输网络传送的服务的系统和方法。 与服务相关联的分组流量在连接到传输网络的服务终止点处被接收。 在业务终端点测量报文流量的性能。 分组业务和业务的测量性能相关，以产生业务（PoS）业务度量的性能。 基于PoS服务度量，与服务相关联的其他服务度量被相关联，包括服务速率（RoS）服务度量和服务可用性（AoS）服务度量。 这些服务指标可用于开发服务级别协议（SLA）和服务级别度量，以定义支持这些服务的网络的服务和操作的运行。

公开(公告)号：US20170111251A1

公开(公告)日：2017-04-20

申请号：US14886721

申请日：2015-10-19

申请人： Marc Holness ,  Cory Gordon

发明人： Marc Holness ,  Cory Gordon

IPC分类号： H04L12/26

CPC分类号： H04L43/0835 ,  H04L43/0841 ,  H04L43/10 ,  H04L49/552

摘要： A method for measuring frame loss on a connection between a near-device (NED) and a far-end device (FED). The method includes: placing, on the connection, multiple test frames having a plurality of sequence numbers; obtaining, from the connection, a first reflected test frame having a first sequence number, a first FED receiving counter value from the FED, and an initial FED received count from the FED; obtaining, from the connection, a second reflected test frame having a second sequence number, a second FED receiving counter value from the FED, and the initial FED received count from the FED; and calculating a one-way frame loss value on the connection based on the second sequence number and the initial FED received count.

公开(公告)号：US20160352570A1

公开(公告)日：2016-12-01

申请号：US14724654

申请日：2015-05-28

申请人： Marc Holness

发明人： Marc Holness

IPC分类号： H04L12/24 ,  H04L12/437

CPC分类号： H04L41/0816 ,  H04L12/437 ,  H04L41/0659 ,  H04L41/0668 ,  H04L43/0811

摘要： A method for connecting a plurality of networks. The method may include establishing a first network link between a first network element and a second network element. The first network link may implement an interconnection between a first network and a second network. The method may include establishing a second network link between the first network element and a third network element. The first network element, the second network element, and the third network element may be located on a virtual network. The method may include detecting, over the virtual network, a first network event regarding the first network link. The method may include, in response to detecting the first network event, adjusting the interconnection between the first network and the second network. The method may include disregarding a second network event regarding the second network link.

摘要翻译： 一种用于连接多个网络的方法。 该方法可以包括在第一网络元件和第二网络元件之间建立第一网络链路。 第一网络链路可以实现第一网络和第二网络之间的互连。 该方法可以包括在第一网络元件和第三网络元件之间建立第二网络链路。 第一网络元件，第二网络元件和第三网络元件可以位于虚拟网络上。 该方法可以包括在虚拟网络上检测关于第一网络链路的第一网络事件。 响应于检测到第一网络事件，该方法可以包括调整第一网络和第二网络之间的互连。 该方法可以包括忽略关于第二网络链路的第二网络事件。

公开(公告)号：US09344323B2

公开(公告)日：2016-05-17

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 ,  H04L12/437 ,  H04L12/46 ,  H04L29/14 ,  H04L12/703 ,  H04L12/413 ,  H04L12/26 ,  H04L12/42

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：US09042395B2

公开(公告)日：2015-05-26

申请号：US13264764

申请日：2009-05-01

申请人： Marc Holness ,  Bashar Abdullah

发明人： Marc Holness ,  Bashar Abdullah

IPC分类号： H04L12/437 ,  H04L12/701 ,  H04L12/42 ,  H04L12/46 ,  H04L12/761

CPC分类号： H04L12/437 ,  H04L12/42 ,  H04L12/462 ,  H04L45/00 ,  H04L45/16 ,  H04L49/102

摘要： A method of routing traffic through a packet network having a mesh physical topography. At least two types of network primitive are defined, each type of network primitive providing a respective model of traffic forwarding through at least two neighbor nodes of the network. A network model encompassing at least a portion of the network is constructed using a set of two or more interconnected network primitives. The network model has nodes and links corresponding to respective nodes and lines of the network. Respective forwarding information is computed for each node of the network model. For each node of the network model, the respective computed forwarding information is installed in a forwarding database of the corresponding node of the network, such that traffic is forwarded by each node of the network in accordance with the respective computed forwarding information.

摘要翻译： 一种通过具有网格物理地形的分组网络路由业务的方法。 定义了至少两种类型的网络原语，每种类型的网络原语通过网络的至少两个相邻节点提供相应的流量转发模型。 包含网络的至少一部分的网络模型使用一组两个或更多个互连网络基元来构建。 网络模型具有对应于网络的相应节点和线路的节点和链路。 针对网络模型的每个节点计算相应的转发信息。 对于网络模型的每个节点，相应的计算出的转发信息被安装在网络的相应节点的转发数据库中，使得根据相应的计算的转发信息，网络的每个节点转发流量。

公开(公告)号：US08953456B2

公开(公告)日：2015-02-10

申请号：US13047128

申请日：2011-03-14

申请人： Dinesh Mohan ,  Marc Holness

发明人： Dinesh Mohan ,  Marc Holness

IPC分类号： G01R31/08 ,  H04L12/26 ,  H04L12/24

CPC分类号： H04L43/08 ,  H04L41/04 ,  H04L43/0852

摘要： Maintenance entities may be defined between customer and provider flow points to allow performance management to take place on an Ethernet network. The maintenance entities may be defined for access link, intra-domain, and inter-domain, and may be defined on a link or service basis. The maintenance entities may be used to monitor performance within a network or across networks, and may be used to monitor various performance parameters, such as frame loss, frame delay, frame delay variation, availability, errored frame seconds, service status, frame throughput, the number of frames transmitted, received or dropped, the status of a loopback interface, the amount of time a service has been unavailable, and many other parameters. Several management mechanisms may be used, and the measurements may be collected using a solicited collection method, in which a response is required and collected, or an unsolicited collection method in which a response is not required.

摘要翻译： 可以在客户和供应商流量点之间定义维护实体，以允许在以太网上进行性能管理。 维护实体可以被定义用于接入链路，域内和域间，并且可以基于链路或服务来定义。 维护实体可以用于监视网络内或网络之间的性能，并且可以用于监视各种性能参数，例如帧丢失，帧延迟，帧延迟变化，可用性，错误帧秒，服务状态，帧吞吐量， 发送，接收或丢弃的帧数，环回接口的状态，服务不可用的时间量以及许多其他参数。 可以使用几种管理机制，并且可以使用在其中需要和收集响应的请求收集方法来收集测量值，或者不需要响应的非请求收集方法。

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。