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1. 发明申请

US20120315030A1 METHOD AND SYSTEM FOR REDUCING TRAFFIC DISTURBANCE IN A COMMUNICATION NETWORK CAUSED BY INTERMITTENT FAILURE 有权
标题翻译：通过间接故障引起的通信网络中减少交通干扰的方法和系统
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。

2. 发明申请

US20090086632A1 Using A Link Attribute To Inform Nodes Of The Availability Of Traffic Management Resources 有权
标题翻译：使用链接属性通知节点的流量管理资源的可用性
公开(公告)号：US20090086632A1
公开(公告)日：2009-04-02
申请号：US11863461
申请日：2007-09-28
申请人： Ronald P. Folkes , Calvin Wan , Chenjiang Hu
发明人： Ronald P. Folkes , Calvin Wan , Chenjiang Hu
IPC分类号： H04L12/56
CPC分类号： H04L45/50 , H04L45/10
摘要： In one embodiment, informing nodes of traffic management resource availability includes establishing whether there is an available traffic management resource at a first node, where a traffic management resource tracks usage of bandwidth by a tunnel at the first node. Whether there is an available traffic management resource is recorded in a traffic management link attribute. The traffic management link attribute is sent to second nodes to inform the second nodes of whether there is an available traffic management resource at the first node.
摘要翻译：在一个实施例中，通知节点的流量管理资源可用性包括确定在第一节点处是否存在可用的流量管理资源，其中流量管理资源跟踪第一节点处的隧道的带宽利用率。流量管理链路属性中是否记录有可用的流量管理资源。将流量管理链路属性发送给第二节点，以通知第二节点在第一节点是否有可用的流量管理资源。

3. 发明授权

US09013977B2 Method and system for reducing traffic disturbance in a communication network caused by intermittent failure 有权
标题翻译：间歇性故障引起的通信网络流量扰动的方法和系统
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。

4. 发明授权

US07778190B2 Correlating label switched paths of a pseudowire 有权
标题翻译：伪线的相关标签切换路径
公开(公告)号：US07778190B2
公开(公告)日：2010-08-17
申请号：US11863374
申请日：2007-09-28
申请人： Calvin Wan , Ronald P Folkes , Nimer I. Yaseen , Chenjiang Hu
发明人： Calvin Wan , Ronald P Folkes , Nimer I. Yaseen , Chenjiang Hu
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L45/00 , H04L45/22 , H04L45/28 , H04L45/50 , H04L45/68
摘要： In one embodiment, correlating label switched paths of a pseudowire includes receiving a first message at a second label switching router. The first message is sent from a first label switching router and includes a pseudowire identifier and a first label switched path identifier. The pseudowire identifier identifies a pseudowire, and the first label switched path identifier identifies a first label switched path that implements the pseudowire. A second message is sent from the second label switching router to the first label switching router. The second message comprises the pseudowire identifier and a second label switched path identifier. The second label switched path identifier identifies a second label switched path that implements the pseudowire.
摘要翻译：在一个实施例中，将伪线的标签交换路径相关联包括在第二标签交换路由器处接收第一消息。第一消息是从第一标签交换路由器发送的，并且包括伪线标识符和第一标签交换路径标识符。伪线标识符识别伪线，并且第一标签交换路径标识符标识实现伪线的第一标签交换路径。从第二标签交换路由器向第一标签交换路由器发送第二条消息。第二消息包括伪线标识符和第二标签交换路径标识符。第二标签交换路径标识符标识实现伪线的第二标签交换路径。

5. 发明申请

US20090086621A1 Correlating Label Switched Paths Of A Pseudowire 有权
标题翻译：相关的伪线的标签交换路径
公开(公告)号：US20090086621A1
公开(公告)日：2009-04-02
申请号：US11863374
申请日：2007-09-28
申请人： Calvin Wan , Ronald P. Folkes , Nimer I. Yaseen , Chenjiang Hu
发明人： Calvin Wan , Ronald P. Folkes , Nimer I. Yaseen , Chenjiang Hu
IPC分类号： G08C15/00
CPC分类号： H04L45/00 , H04L45/22 , H04L45/28 , H04L45/50 , H04L45/68
摘要： In one embodiment, correlating label switched paths of a pseudowire includes receiving a first message at a second label switching router. The first message is sent from a first label switching router and includes a pseudowire identifier and a first label switched path identifier. The pseudowire identifier identifies a pseudowire, and the first label switched path identifier identifies a first label switched path that implements the pseudowire. A second message is sent from the second label switching router to the first label switching router. The second message comprises the pseudowire identifier and a second label switched path identifier. The second label switched path identifier identifies a second label switched path that implements the pseudowire.
摘要翻译：在一个实施例中，将伪线的标签交换路径相关联包括在第二标签交换路由器处接收第一消息。第一消息是从第一标签交换路由器发送的，并且包括伪线标识符和第一标签交换路径标识符。伪线标识符识别伪线，并且第一标签交换路径标识符标识实现伪线的第一标签交换路径。从第二标签交换路由器向第一标签交换路由器发送第二条消息。第二消息包括伪线标识符和第二标签交换路径标识符。第二标签交换路径标识符标识实现伪线的第二标签交换路径。

6. 发明申请

US20180062974A1 BUFFER FLUSH OPTIMIZATION IN ETHERNET RING PROTECTION NETWORKS 审中-公开
公开(公告)号：US20180062974A1
公开(公告)日：2018-03-01
申请号：US15247525
申请日：2016-08-25
申请人： Rajnath Singh , Kevin Corley , Chenjiang Hu , Daniel Cao
发明人： Rajnath Singh , Kevin Corley , Chenjiang Hu , Daniel Cao
IPC分类号： H04L12/751
CPC分类号： H04L45/02 , H04L12/437 , H04L45/18 , H04L45/28 , H04L45/66
摘要： A method and system for buffer flush optimization in ERP networks includes generating improved ERP control messages to include a sub-ring identifier and a topology change notification sequence number. When the improved ERP control messages are received, the recipient is enabled to disambiguate multiple redundant ERP control messages. Additionally, a do not flush attribute bit is set for subsequently sent ERP control messages.

7. 发明授权

US07768924B2 Using a link attribute to inform nodes of the availability of traffic management resources 有权
标题翻译：使用链接属性通知节点的流量管理资源的可用性
公开(公告)号：US07768924B2
公开(公告)日：2010-08-03
申请号：US11863461
申请日：2007-09-28
申请人： Ronald P. Folkes , Calvin Wan , Chenjiang Hu
发明人： Ronald P. Folkes , Calvin Wan , Chenjiang Hu
IPC分类号： H04L12/26
CPC分类号： H04L45/50 , H04L45/10
摘要： In one embodiment, informing nodes of traffic management resource availability includes establishing whether there is an available traffic management resource at a first node, where a traffic management resource tracks usage of bandwidth by a tunnel at the first node. Whether there is an available traffic management resource is recorded in a traffic management link attribute. The traffic management link attribute is sent to second nodes to inform the second nodes of whether there is an available traffic management resource at the first node.
摘要翻译：在一个实施例中，通知节点的流量管理资源可用性包括确定在第一节点处是否存在可用的流量管理资源，其中流量管理资源跟踪第一节点处的隧道的带宽利用率。流量管理链路属性中是否记录有可用的流量管理资源。将流量管理链路属性发送给第二节点，以通知第二节点在第一节点是否有可用的流量管理资源。

8. 发明授权

US06901048B1 Link-level protection of traffic in a packet-switched network 失效
标题翻译：分组交换网络中流量的链路级保护
公开(公告)号：US06901048B1
公开(公告)日：2005-05-31
申请号：US09603355
申请日：2000-06-26
申请人： Guo Qiang Q. Wang , Kent E. Felske , Wenfeng Chen , Chenjiang Hu , Liangyu L. Jia
发明人： Guo Qiang Q. Wang , Kent E. Felske , Wenfeng Chen , Chenjiang Hu , Liangyu L. Jia
IPC分类号： H04L12/56 , H04L29/14 , G01R31/08
CPC分类号： H04L45/28 , H04L45/02 , H04L45/22 , H04L69/40
摘要： In a packet-switched network having a plurality of nodes interconnected by links, pre-defined protection paths provide protection of a selected plurality of links. Adjacent nodes connected by a protected link are adapted to detect a failure of the protected link, to encapsulate packets within tunnel packets, to differentiate between tunnel packets and non-tunnel packets and to exchange the tunnel packets via a protection path rather than via the failed link. This results in faster automatic protection switching of packet-based traffic. The invention is particularly suited to an Internet Protocol network.
摘要翻译：在具有通过链路互连的多个节点的分组交换网络中，预定义的保护路径为所选择的多个链路提供保护。由受保护链路连接的相邻节点适于检测受保护链路的故障，将分组封装在隧道分组内，以区分隧道分组和非隧道分组，并通过保护路径而不是通过故障交换隧道分组链接。这导致基于分组的流量的更快的自动保护切换。本发明特别适用于因特网协议网络。

9. 发明申请

US20130003528A1 JOINT NEAR-END AND FAR-END STATE MACHINE FOR SERVICE PROTECTION NETWORKS 审中-公开
标题翻译：用于服务保护网络的接近端和末端状态机
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。

10. 发明申请

US20090086633A1 Using A Link-State Advertisement To Inform Nodes Of The Availability Of Traffic Management Resources 审中-公开
标题翻译：使用链路状态广告来通知节点的流量管理资源的可用性
公开(公告)号：US20090086633A1
公开(公告)日：2009-04-02
申请号：US11865771
申请日：2007-10-02
申请人： Chenjiang Hu , Calvin Wan , Ronald P. Folkes
发明人： Chenjiang Hu , Calvin Wan , Ronald P. Folkes
IPC分类号： H04L12/66
CPC分类号： H04L12/66
摘要： In one embodiment, informing nodes of traffic management resource availability includes determining a number of available traffic management resources at a first node, where a traffic management resource tracks usage of bandwidth by a tunnel at the first node. The number of available traffic management resources is recorded in a link-state advertisement. The link-state advertisement is sent to one or more second nodes.
摘要翻译：在一个实施例中，通知节点的流量管理资源可用性包括确定在第一节点处的可用流量管理资源的数量，其中流量管理资源跟踪第一节点处的隧道的带宽利用率。可用流量管理资源的数量记录在链路状态广告中。链路状态广告被发送到一个或多个第二节点。

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