公开(公告)号：US20160156540A1

公开(公告)日：2016-06-02

申请号：US14989884

申请日：2016-01-07

申请人： Jie HU ,  Marc HOLNESS ,  Cory GORDON ,  Mradula NEGINHAL ,  Madhavi R. JOSHI ,  Asheesh JADAV

发明人： Jie HU ,  Marc HOLNESS ,  Cory GORDON ,  Mradula NEGINHAL ,  Madhavi R. JOSHI ,  Asheesh JADAV

IPC分类号： H04L12/26

CPC分类号： H04L43/103 ,  H04L41/06 ,  H04L41/0816 ,  H04L41/0886 ,  H04L43/04 ,  H04L43/0811 ,  H04L43/16

摘要： Systems and methods with dynamic Connectivity Fault Management (CFM) and Continuity Check Messages (CCMs) that enable dynamic configurations to avoid limitations associated with static reconfigurations. Variously, a network, a method, and a network element are configured to implement a dynamic CFM method for dynamic notifications and actions taken based thereon between Maintenance End Points (MEPs). The systems and methods may also include a CCM attribute adjustment method between two MEPs, a CCM suspension and/or resumption method between two MEPs, and a MEP auto-discovery and leaving method. Advantageously, the systems and methods may be utilized in a variety of contexts including controlled maintenance, in-service software upgrades, network congestion, discovery of new remote MEPs, and the like to enable dynamic configurations between MEPs. The systems and methods may also apply to Carrier Ethernet, Multiprotocol Label Switching-Transport Profile (MPLS-TP), and the like.

公开(公告)号：US20100165834A1

公开(公告)日：2010-07-01

申请号：US12581944

申请日：2009-10-20

申请人： Marc HOLNESS ,  Bashar ABDULLAH ,  Marc Andre ROCHON

发明人： Marc HOLNESS ,  Bashar ABDULLAH ,  Marc Andre ROCHON

IPC分类号： G06F11/00

CPC分类号： H04L12/437 ,  H04L45/28

摘要： A method and system for rerouting data in a communication network ring. The ring includes a plurality of nodes and a plurality of links. Each node includes a first port and a second port. Each first port is connected to a neighboring second port through a link of the plurality of links. The topology of the communication network ring is discovered and a forwarding database table is populated with static entries according to the discovered topology. Upon receiving notice of a failed link, which includes a source address of a node adjacent to the failed link, the topology and the source address of the node adjacent to the failed link is used to reconfigure the forwarding database table. Data is forwarded using the reconfigured forwarding database table without flooding the ring.

摘要翻译： 用于在通信网络环中重新路由数据的方法和系统。 该环包括多个节点和多个链路。 每个节点包括第一端口和第二端口。 每个第一端口通过多个链路的链路连接到相邻的第二端口。 发现通信网络环的拓扑结构，根据发现的拓扑结构，使用静态条目填充转发数据库表。 在收到包含与故障链路相邻的节点的源地址的故障链路的通知时，使用与故障链路相邻的节点的拓扑和源地址来重新配置转发数据库表。 使用重新配置的转发数据库表转发数据，而不会洪泛环。

公开(公告)号：US20160036714A1

公开(公告)日：2016-02-04

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 ,  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.

摘要翻译： 一种方法，网络和网元使用动态分组流量性能调整技术。 在示例性实施例中，动态调整大小技术利用不同的分组连接来提供与需要带宽调整大小之间的相同站点的连接。 每个分组连接具有独立且独立的带宽配置文件，其控制在每个分组连接上分派的流量。 将流量引入分组连接的网络元件使用桥接功能，其将客户端流量分派到所有分组连接或单个分组连接。 这实际上意味着传输网络带宽利用率仅由单个分组连接消耗，即，分组连接-A（即使通过多个配置）。 吞吐流量的网络元件从单个活动分组连接中选择。

公开(公告)号：US20150280938A1

公开(公告)日：2015-10-01

申请号：US14719461

申请日：2015-05-22

申请人： Marc HOLNESS ,  Bashar ABDULLAH

发明人： Marc HOLNESS ,  Bashar ABDULLAH

IPC分类号： H04L12/437 ,  H04L12/933 ,  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 topology. 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拓扑的分组网络路由流量的方法。 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。

公开(公告)号：US20110075554A1

公开(公告)日：2011-03-31

申请号：US12892959

申请日：2010-09-29

申请人： Marc HOLNESS

发明人： Marc HOLNESS

IPC分类号： H04L1/00

CPC分类号： H04L1/22

摘要： A method of enabling a resilient interface between a first node and a G.8032 Ethernet ring. A Link Aggregation Group (LAG) comprising respective links is provided between the first node and at least two ring nodes of the Ethernet ring. An aggregation function is instantiated at the first node, for distributing subscriber traffic to the links of the LAG in a conventional manner. A first one of the ring nodes is designated as Active, and each of the other ones of the ring nodes are designated as Inactive. At each Inactive ring node, a logical block is imposed on its respective link of the LAG, such that subscriber traffic between the first node and the Ethernet ring is routed by the aggregation function only through the respective link between the first node and the Active ring node.

摘要翻译： 一种实现第一节点和G.8032以太网环之间的弹性接口的方法。 在第一节点和以太网环的至少两个环节点之间提供包括相应链路的链路聚合组（LAG）。 聚合功能在第一节点被实例化，用于以常规方式将用户业务分发给LAG的链路。 环形节点中的第一个被指定为活动节点，并且环节点中的每一个被指定为非活动节点。 在每个非活动环节点处，逻辑块被施加到其LAG的相应链路上，使得第一节点和以太网环之间的用户业务仅通过聚合功能通过第一节点和活动环之间的相应链路进行路由 节点。

公开(公告)号：US20130028071A1

公开(公告)日：2013-01-31

申请号：US13549627

申请日：2012-07-16

申请人： David Wright MARTIN ,  Marc HOLNESS

发明人： David Wright MARTIN ,  Marc HOLNESS

IPC分类号： H04L12/24

CPC分类号： H04L45/28 ,  H04L12/4625 ,  H04L45/16 ,  H04L45/22

摘要： A method and system provide in-band protection switch signaling in a communication system arranged as a point-to-multipoint tree. The point-to-multipoint tree includes a root node communicatively coupled to a plurality of leaf nodes through both a working link and a protection link. Data is transferred through a current link of the point-to-multipoint tree. The current link is either the working link or the protection link. A fault is detected in the current link in the point-to-multipoint tree. Each leaf node in the point-to-multipoint tree is notified of the fault using the current link. Upon receiving the notification, the root node and each leaf node switch to the other link of the working link and the protection link.

公开(公告)号：US20100135291A1

公开(公告)日：2010-06-03

申请号：US12626975

申请日：2009-11-30

申请人： David MARTIN ,  Marc HOLNESS ,  Bernard ST-DENIS

发明人： David MARTIN ,  Marc HOLNESS ,  Bernard ST-DENIS

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L12/4662 ,  H04L45/00 ,  H04L45/28 ,  H04L47/245 ,  H04L47/728 ,  H04L47/746 ,  H04L49/557

摘要： A method of controlling traffic forwarding in a Provider Backbone-Traffic Engineered (PBB-TE) network. A protection group (PG) is defined, and including N working Traffic Engineered Service Instances (TESIs) and M protection TESIs. An Automatic Protection Switching Protocol Data Unit (APS PDU) is defined, which includes information defining at least a state of the protection group. This APS PDU is forwarded only through the protection TESI(s).

摘要翻译： 一种在提供商骨干流量工程（PBB-TE）网络中控制流量转发的方法。 定义了保护组（PG），包括N个工作流量工程服务实例（TESI）和M个保护TESI。 定义了自动保护切换协议数据单元（APS PDU），其包括至少定义保护组的​​状态的信息。 该APS PDU仅通过保护TESI转发。

公开(公告)号：US20080095047A1

公开(公告)日：2008-04-24

申请号：US11955888

申请日：2007-12-13

申请人： Darek SKALECKI ,  Gerard (Gary) SWINKELS ,  David ALLAN ,  Nigel BRAGG ,  Marc HOLNESS

发明人： Darek SKALECKI ,  Gerard (Gary) SWINKELS ,  David ALLAN ,  Nigel BRAGG ,  Marc HOLNESS

IPC分类号： H04L12/26

CPC分类号： H04L41/0668 ,  H04L45/22 ,  H04L45/28

摘要： A resilient virtual Ethernet ring has nodes interconnected by 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. A traffic originating node, upon determining that transmitted packets are being looped back due to a fault on a primary path, is adapted to switch transmission of data packets from the primary path to a secondary 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。 如果跨度失效，则立即在故障两侧的两个节点交叉连接以折叠环。 工作路径流量交叉连接到两个节点第一个的保护路径上，然后在两个节点的第二个端口上交叉连接回工作路径，以便流量始终从工作路径中进出环 。 业务始发节点在确定由于主路径上的故障而被发送的分组环回时适于将数据分组从主路径传输到次路径。

公开(公告)号：US20160134361A1

公开(公告)日：2016-05-12

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： H04B10/032 ,  H04Q11/00 ,  H04J3/16 ,  H04L12/437 ,  H04L12/707

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.

摘要翻译： 基于选择性地阻塞和解除端口的网络中的环路保护切换的系统和方法包括经由利用第一服务标识符的数据信道经由端口转发业务，其中数据信道沿着闭环在网络中路由; 并且选择性地阻塞和解除阻塞端口上的业务以提供通过闭环的环路保护切换，其中基于利用与第一服务标识符不同类型的第二服务标识符的管理信道来执行选择性阻塞和解除阻塞。

公开(公告)号：US20130258840A1

公开(公告)日：2013-10-03

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

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。