公开(公告)号：US20050099951A1

公开(公告)日：2005-05-12

申请号：US10881292

申请日：2004-06-30

申请人： Dinesh Mohan ,  Timothy Mancour ,  Marc Holness

发明人： Dinesh Mohan ,  Timothy Mancour ,  Marc Holness

IPC分类号： H04L12/26

CPC分类号： H04L43/0811 ,  H04L43/10 ,  H04L45/28

摘要： Ethernet OAM connectivity check may be used to detect connectivity failures across a given pair of network elements on an Ethernet network. Connectivity check frames are generated and sent to a specific unicast DA or to a multicast DA. Once a network element begins to receive connectivity check frames, it expects to continue to receive further periodic connectivity check frames from that network element. If the network element stops receiving periodic connectivity check frames, it detects that connectivity to the sending network element is broken. Once a fault is identified, the fault may be verified using a loopback function, which causes a network element receiving an Ethernet frame to transmit a corresponding frame back to the original network element. Loopback may be intrusive such that all received frames are looped back except OAM frames, or non-intrusive where only OAM frames are looped back.

摘要翻译： 以太网OAM连接检查可用于检测以太网上给定的一对网络上的连接故障。 生成连通性检查帧并将其发送到特定的单播DA或多播DA。 一旦网络元件开始接收连接性检查帧，它将期望从该网络元件继续接收进一步的周期性连接性检查帧。 如果网络元件停止接收周期性连接检查帧，则它检测到与发送网元的连接断开。 一旦识别到故障，就可以使用环回功能验证故障，这使得接收以太网帧的网络单元将相应的帧传送回原始网络单元。 环回可能是侵扰性的，使得除了OAM帧之外，所有接收到的帧都被环回，或者只有OAM帧被环回的非侵入帧。

公开(公告)号：US20050068950A1

公开(公告)日：2005-03-31

申请号：US10784332

申请日：2004-02-23

申请人： Donald Ellis ,  Martin Charbonneau ,  Marc Holness

发明人： Donald Ellis ,  Martin Charbonneau ,  Marc Holness

IPC分类号： H04L12/28

CPC分类号： H04L61/2038 ,  H04L41/12 ,  H04L61/1511 ,  H04L61/6004

摘要： Described are a system and method for identifying private resources associated with a communications network. A structured address format is defined having a plurality of character positions. Each character position is associated generally with a property of a managed resource in the communications network. A structured private address, constructed according to the structured address format, is assigned to the managed resource. Each character position of the assigned structured address has a value that identifies a specific instance of the property of the managed resource associated with that character position. Operations Systems Support (OSS) gives a common name to the managed resource and maintains an association between the common name and the structured address. The structured address format can follow a four-byte dotted decimal notation similar to IPv4 addresses. For addresses following this format, the OSS can use standard domain name system services to translate between common names and structured addresses.

摘要翻译： 描述了用于识别与通信网络相关联的私人资源的系统和方法。 定义具有多个字符位置的结构化地址格式。 每个字符位置通常与通信网络中的被管理资源的属性相关联。 根据结构化地址格式构造的结构化专用地址被分配给被管理资源。 分配的结构化地址的每个字符位置具有一个值，该值标识与该字符位置相关联的被管理资源的属性的特定实例。 操作系统支持（OSS）为托管资源提供通用名称，并维护通用名称和结构化地址之间的关联。 结构化地址格式可以遵循与IPv4地址类似的四字节点分十进制格式。 对于遵循此格式的地址，OSS可以使用标准域名系统服务在通用名称和结构化地址之间进行转换。

公开(公告)号：US09407535B2

公开(公告)日：2016-08-02

申请号：US14244341

申请日：2014-04-03

申请人： Jie Hu ,  Marc Holness ,  Asheesh Jadav ,  Somen Bhattacharya

发明人： Jie Hu ,  Marc Holness ,  Asheesh Jadav ,  Somen Bhattacharya

IPC分类号： H04L1/00 ,  H04L12/707 ,  H04L12/46 ,  H04L12/24 ,  H04L12/64

CPC分类号： H04L45/22 ,  H04L7/0004 ,  H04L12/462 ,  H04L12/4633 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0816 ,  H04L45/28 ,  H04L45/50

摘要： A packet network linear protection method, a network, and a node in a dual or multi-home configuration include designating each of a plurality of home nodes in the dual or multi-home configuration as a working home or a protect home; designating each link between each of the plurality of home nodes and an end node in the dual or multi-home configuration as active or standby; operating a protection switch state machine based on an associated linear protection protocol at each of the plurality of home nodes and the end node; communicating protection messages to each of the plurality of home nodes from the end node; and communicating protection states in an associated protection switch state machine by each of the plurality of home nodes to other home nodes and to the end node.

摘要翻译： 分组网络线性保护方法，网络和双家庭或多家庭配置中的节点包括将双家庭或多家庭配置中的多个家庭节点中的每一个指定为工作家庭或保护家庭; 指定所述多个家庭节点中的每一个和所述双家庭或多家庭配置中的终端节点之间的每个链路为活动或备用; 基于所述多个家庭节点和所述端节点中的每一个处的相关联的线性保护协议来操作保护交换状态机; 从所述终端节点向所述多个家庭节点中的每一个传送保护消息; 以及将关联的保护交换机状态机中的保护状态通过所述多个归属节点中的每一个传送到其他家庭节点和所述终端节点。

公开(公告)号：US09264254B2

公开(公告)日：2016-02-16

申请号：US13435225

申请日：2012-03-30

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

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

IPC分类号： H04L12/437 ,  H04L12/42 ,  H04L12/931 ,  H04L12/64

CPC分类号： H04B10/032 ,  H04J3/167 ,  H04L12/42 ,  H04L12/437 ,  H04L45/22 ,  H04L49/00 ,  H04L2012/6437 ,  H04Q11/0066 ,  H04Q2011/0081

摘要： A node includes a first port configured to be selectively blocked and unblocked; a second port configured to be selectively blocked and unblocked; a forwarder between the first port and the second port; a management channel between the first port and the second port, wherein the selective blocking and unblocking of the first port and the second port is based on the management channel; and a data channel between the first port and the second port, wherein the data channel utilizes an arbitrary service identifier. A method can include operating a ring with Ring Protection Switching comprising a forwarding mechanism and a blocking mechanism that are independent and decoupled entities therebetween, wherein the ring includes a management channel and a data channel that each utilize an arbitrary service identifier.

摘要翻译： 节点包括配置为选择性地阻塞和解除阻塞的第一端口; 被配置为选择性地阻塞和解锁的第二端口; 第一端口和第二端口之间的转发器; 所述第一端口和所述第二端口之间的管理信道，其中所述第一端口和所述第二端口的选择性阻塞和解除阻塞基于所述管理信道; 以及第一端口和第二端口之间的数据信道，其中数据信道利用任意的服务标识符。 一种方法可以包括操作具有环保护交换的环，其包括在其间独立和去耦实体的转发机制和阻塞机制，其中所述环包括管理信道和每个利用任意服务标识符的数据信道。

公开(公告)号：US09203549B2

公开(公告)日：2015-12-01

申请号：US13489633

申请日：2012-06-06

申请人： Marc Holness ,  Kelly D. Fromm ,  Cory D. Gordon

发明人： Marc Holness ,  Kelly D. Fromm ,  Cory D. Gordon

IPC分类号： H04L12/26 ,  H04L12/28 ,  G06F15/16 ,  G06F15/177 ,  H04L1/00 ,  H04L12/701 ,  H04L29/06 ,  H04L12/24

CPC分类号： H04L1/00 ,  H04L29/06 ,  H04L41/0213 ,  H04L43/08 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/00

摘要： A Carrier Ethernet method includes receiving a request to initiate an Ethernet Operations, Administration, and Maintenance (OAM) session at a local device, setting up the OAM session at the local device responsive to the request, transmitting a Protocol Data Unit (PDU) from the local device to a remote device with information related to the OAM session and the request contained therein, and receiving the PDU at the remote device and setting up the OAM session at the remote device based on the information in the PDU. The OAM session can include Ethernet Frame Loss Measurement and can be initiated only at the local device without requiring operator involvement at the remote device.

摘要翻译： 运营商以太网方法包括接收在本地设备发起以太网操作，管理和维护（OAM）会话的请求，响应于该请求在本地设备建立OAM会话，从协议数据单元（PDU） 本地设备具有与OAM会话相关的信息和其中包含的请求的远程设备，以及在远程设备处接收PDU并且基于PDU中的信息在远程设备处建立OAM会话。 OAM会话可以包括以太网帧丢失测量，并且只能在本地设备启动，而不需要操作员参与远程设备。

公开(公告)号：US09197493B2

公开(公告)日：2015-11-24

申请号：US13605518

申请日：2012-09-06

申请人： Marc Holness ,  Gerald Smallegange ,  Brett Caldwell

发明人： Marc Holness ,  Gerald Smallegange ,  Brett Caldwell

IPC分类号： G01R31/08 ,  H04L12/24 ,  H04L29/14

CPC分类号： H04L41/0659 ,  H04L29/14

摘要： The present disclosure provides protection systems and methods that provide a mechanism to identify/determine when an interconnection node has been isolated (i.e. when there is no connectivity between a pair of interconnection nodes), from a data path perspective. If/when this condition exists, actions are triggered on the subtending sub-ring that essentially perform a protection switch (which causes the subtending sub-ring nodes to cleanse their forwarding tables), and, more importantly, that remove any channel blocks on the subtending sub-ring. Extensions to the ITU-T G.8032 state machine are also provided that include support for operator command interactions (e.g. DNR, force switch, manual switch, etc.). The protection systems and methods of the present disclosure enable the reliable application of ITU-T G.8032 and the like to more complex (i.e. meshed) deployment environments, among other significant advantages.

摘要翻译： 本公开提供了保护系统和方法，其提供了从数据路径的角度来识别/确定何时互连节点已被隔离（即，当一对互连节点之间没有连接性）的机制。 如果/当这种情况存在时，在基本上执行保护交换机（这导致对等子环节点清除其转发表）的对边子环上触发动作，更重要的是，删除任何通道块 对准子环。 还提供了对ITU-T G.8032状态机的扩展，其包括对操作者命令交互的支持（例如DNR，力开关，手动开关等）。 本公开的保护系统和方法使得能够将ITU-T G.8032等可靠地应用于更复杂（即，网状）部署环境以及其它显着优点。

公开(公告)号：US08855122B2

公开(公告)日：2014-10-07

申请号：US11159065

申请日：2005-06-22

申请人： Paul Bottorff ,  Norival Figueira ,  Marc Holness

发明人： Paul Bottorff ,  Norival Figueira ,  Marc Holness

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04J3/16 ,  H04L12/46

CPC分类号： H04L12/4658 ,  H04L12/2852 ,  H04L12/4625 ,  H04L12/4633 ,  H04L41/0893

摘要： An edge device is used to support a backbone provider bridging network to facilitate interconnection of a plurality of networks. The edge device is coupled between the backbone and a first one of the networks, and is operable to encapsulate data units received from the first network with a header, and to forward the encapsulated data unit to the backbone. The header is indicative of a tunnel that is used to support traffic from the first network to a second network over the backbone. The edge device also de-encapsulates data units received from the backbone that are destined for the first network.

摘要翻译： 边缘设备用于支持骨干提供商桥接网络以促进多个网络的互连。 边缘设备耦合在骨干网和网络中的第一网络之间，并且可操作以用头部封装从第一网络接收的数据单元，并将封装的数据单元转发到骨干网。 报头指示用于支持通过主干从第一网络到第二网络的通信的隧道。 边缘设备还对从目的地为第一网络的骨干网接收的数据单元进行解封装。

公开(公告)号：US08295175B2

公开(公告)日：2012-10-23

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： G01R31/08

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：US20120243405A1

公开(公告)日：2012-09-27

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：US20120033666A1

公开(公告)日：2012-02-09

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： H04L12/56

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 neighbour 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对应节点的转发数据库中，使得根据相应的计算的转发信息，由网络的每个节点转发流量。