公开(公告)号：US20160204976A1

公开(公告)日：2016-07-14

申请号：US14596795

申请日：2015-01-14

申请人： Rajnath Singh ,  Farid Khalilzadeh ,  Swati Mittal ,  Daniel Cao ,  Si Long Ho

发明人： Rajnath Singh ,  Farid Khalilzadeh ,  Swati Mittal ,  Daniel Cao ,  Si Long Ho

IPC分类号： H04L12/24 ,  H04L12/26

CPC分类号： H04L12/413

摘要： A method and system for identifying the absence and presence of a ring protection link in Ethernet networks are disclosed. The method may include sending, by a node in a ring of an Ethernet network having a plurality of nodes and an RPL, an APS message. The method may further include receiving, by the node via the ring, the APS message and determining whether the node is an RPL owner node that controls the flow of traffic on the RPL. The method may further include, raising, when it is determined that the node is not an RPL owner node, an alarm indicating that the ring lacks a provisioned RPL owner node.

摘要翻译： 公开了一种用于识别以太网中环路保护链路不存在和存在的方法和系统。 该方法可以包括由具有多个节点和RPL的以太网网络中的节点发送APS消息。 所述方法还可以包括经由所述节点经由所述环接收所述APS消息并确定所述节点是否是控制所述RPL上的流量流的RPL所有者节点。 该方法还可以包括，当确定节点不是RPL所有者节点时，提示指示该环缺少所设置的RPL所有者节点。

公开(公告)号：US20130003528A1

公开(公告)日：2013-01-03

申请号：US13175580

申请日：2011-07-01

申请人： Guoliang Wu ,  Ladan S. Pickering ,  Chenjiang Hu ,  Si Long Ho ,  David Traylor ,  Rajnath Singh

发明人： Guoliang Wu ,  Ladan S. Pickering ,  Chenjiang Hu ,  Si Long Ho ,  David Traylor ,  Rajnath Singh

IPC分类号： H04L12/26

CPC分类号： H04L41/0816 ,  H04L43/0817 ,  H04L49/552

摘要： In one embodiment, a method for telecommunications includes determining the operational state of a first network switch, determining the operational state of a second network switch, determining the existence of an actionable condition, accessing information on the first switch, and changing the operational state of the first switch. The second network switch is coupled to the first network switch by a protected path. Determining the actionable condition and changing the operational state use references to the operational state of the first network switch, the operational state of the second network switch, and the actionable condition.

摘要翻译： 在一个实施例中，一种用于电信的方法包括：确定第一网络交换机的操作状态，确定第二网络交换机的操作状态，确定可操作条件的存在，访问第一交换机上的信息，以及改变操作状态 第一个开关。 第二网络交换机通过受保护的路径耦合到第一网络交换机。 确定可操作状态和改变操作状态使用对第一网络交换机的操作状态，第二网络交换机的操作状态和可操作条件的引用。

公开(公告)号：US09013977B2

公开(公告)日：2015-04-21

申请号：US13156071

申请日：2011-06-08

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

IPC分类号： H04L12/26 ,  H04L1/00 ,  H04B10/032 ,  H04L12/933 ,  H04L12/707 ,  H04L12/703

CPC分类号： H04B10/032 ,  H04L45/22 ,  H04L45/28 ,  H04L49/101

摘要： A method may include: (i) in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: (a) transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active; and (b) initiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and (ii) in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: (a) maintaining, by the first network element, its state in the first state; and (b) continuing, by the first network element, the wait to restore timer.

摘要翻译： 一种方法可以包括：（i）响应于清除第一网络元件所连接到的保护交换组的工作路径上的故障：（a）由第一网络元件将其状态转换到第一状态 其中保护切换组的保护路径是活动的; 以及（b）由所述第一网元启动等待恢复定时器，所述等待恢复定时器具有这样的持续时间，使得在所述定时器到期时，所述第一网元被配置为将所述工作路径切换为活动; 以及（ii）响应于从所述保护交换组接收到指示在所述工作路径上发生故障的第二网元的消息：（a）由所述第一网络元件维持其处于所述第一状态的状态; 和（b）由第一网元继续等待恢复定时器。

公开(公告)号：US20120315030A1

公开(公告)日：2012-12-13

申请号：US13156071

申请日：2011-06-08

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

IPC分类号： H04B10/08

CPC分类号： H04B10/032 ,  H04L45/22 ,  H04L45/28 ,  H04L49/101

摘要： A method may include: (i) in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: (a) transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active; and (b) initiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and (ii) in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: (a) maintaining, by the first network element, its state in the first state; and (b) continuing, by the first network element, the wait to restore timer.

摘要翻译： 一种方法可以包括：（i）响应于清除第一网络元件所连接到的保护交换组的工作路径上的故障：（a）由第一网络元件将其状态转换到第一状态 其中保护切换组的保护路径是活动的; 以及（b）由所述第一网元启动等待恢复定时器，所述等待恢复定时器具有这样的持续时间，使得在所述定时器到期时，所述第一网元被配置为将所述工作路径切换为活动; 以及（ii）响应于从所述保护交换组接收到指示在所述工作路径上发生故障的第二网元的消息：（a）由所述第一网络元件维持其处于所述第一状态的状态; 和（b）由第一网元继续等待恢复定时器。

公开(公告)号：US20120195190A1

公开(公告)日：2012-08-02

申请号：US13360300

申请日：2012-01-27

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho

IPC分类号： H04L12/24

CPC分类号： H04L45/22 ,  H04L45/28

摘要： A method for solving communication failure includes transmitting user traffic over an automatic protection switching (“APS”) connection between a near network node and a far network node, determining that a protect path on the APS connection has failed, sending a message to the far network node that the protect path has failed, and switching user traffic to the working path at the near network node.

摘要翻译： 用于解决通信故障的方法包括通过近网络节点和远网络节点之间的自动保护切换（“APS”）连接发送用户业务，确定APS连接上的保护路径已经失败，向远端发送消息 网络节点，保护路径失败，并将用户流量切换到近网络节点的工作路径。