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公开(公告)号：US09794168B2
公开(公告)日：2017-10-17
申请号：US14819346
申请日：2015-08-05
IPC分类号： H04L12/703 , H04L12/723
摘要： In one embodiment, a method includes generating at a network device, a continuity test packet configured to pass through a set of communication paths terminating at the network device and at least one other network device located at an opposite end of the communication paths, transmitting at the network device the continuity test packet on a first communication path in the set of communication paths, and identifying at the network device a failure in the set of communication paths if the continuity test packet is not received on a last communication path in the set of communication paths. An apparatus and logic are also disclosed herein.
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公开(公告)号：US20160254994A1
公开(公告)日：2016-09-01
申请号：US15001528
申请日：2016-01-20
IPC分类号： H04L12/723 , H04L12/26
CPC分类号： H04L45/507 , H04L43/0829 , H04L43/0835 , H04L45/50
摘要： Particular embodiments described herein provide for a communication system that can be configured to identify a system that includes network traffic, where at least a portion of the network traffic includes packets, at least a portion of the packets include a stack, and at least a portion of each stack includes one or more previously allocated labels. The communication system can further be configured to determine a synonymous label that triggers an action and to replace a label from the one of the one or more previously allocated labels in a specific stack of a specific packet with the synonymous label. In an example, the synonymous label can be used to identify a subset of packets in the network traffic or a source of the specific packet.
摘要翻译： 本文描述的特定实施例提供了通信系统，其可以被配置为识别包括网络业务的系统，其中网络业务的至少一部分包括分组，分组的至少一部分包括堆栈，以及至少一部分 每个堆栈包括一个或多个先前分配的标签。 通信系统还可以被配置为确定触发动作的同义标签，并且用具有同义标签的特定分组的特定栈中的一个或多个先前分配的标签之一来替换标签。 在一个示例中，同义标签可以用于标识网络流量中的分组的子集或特定分组的源。
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公开(公告)号：US09590850B2
公开(公告)日：2017-03-07
申请号：US13962226
申请日：2013-08-08
IPC分类号： H04L12/24 , H04L12/751 , H04L12/717
CPC分类号： H04L41/0813 , H04L41/0896 , H04L45/02 , H04L45/42
摘要： In one embodiment, a method includes receiving at a node in a first network, information identifying a spare interface between a first network device in the first network and a second network device in a second network, and using the spare interface to create a path in the first network if the spare interface is compatible. The spare interface information includes connectivity and compatibility information.
摘要翻译： 在一个实施例中，一种方法包括在第一网络中的节点处接收标识第一网络中的第一网络设备与第二网络中的第二网络设备之间的备用接口的信息，以及使用备用接口创建路径 第一个网络如果备用接口兼容。 备用接口信息包括连接和兼容性信息。
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公开(公告)号：US09210089B2
公开(公告)日：2015-12-08
申请号：US14132781
申请日：2013-12-18
IPC分类号： G06F11/00 , H04L12/803 , H04L12/723 , H04L12/801 , H04L12/753
CPC分类号： H04L47/125 , H04L45/24 , H04L45/48 , H04L45/50 , H04L45/507 , H04L47/12 , H04L47/122
摘要： The present disclosure provides for carrying downstream mapping information in an echo request message and/or echo reply message, which can describe both IP (Internet Protocol) multipath information and label multipath information. A transit node (e.g., an LSR element) that receives an echo request message from an initiator node determines downstream mapping information, which is returned to the initiator node. Transit node determines whether a newly defined type of multipath information (type 10) should be generated to return the downstream mapping information, based on whether transit node performs load balancing based on labels or IP header information, and whether transit node imposes entropy labels. A multipath information type 10 element includes either IP multipath information or label multipath information, as well as associated label multipath information that includes one or more entropy labels that map to the IP or label multipath information being returned.
摘要翻译： 本公开提供在回波请求消息和/或回声应答消息中携带下行映射信息，其可以描述IP（因特网协议）多路径信息和标签多路径信息。 从发起者节点接收回应请求消息的传输节点（例如，LSR元素）确定返回到发起方节点的下行映射信息。 传输节点根据传输节点是否根据标签或IP头信息进行负载均衡，以及传输节点是否施加熵标签，确定是否应生成新定义类型的多路径信息（类型10）以返回下行映射信息。 多路径信息类型10元素包括IP多路径信息或标签多路径信息，以及相关联的标签多路径信息，其包括映射到所返回的IP或标签多路径信息的一个或多个熵标签。
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5.发明申请DATA-PLANE DRIVEN FAST PROTECTION MECHANISM FOR MPLS PSEUDOWIRE SERVICES 有权数据平面驱动用于MPLS PSEUDOWIRE服务的快速保护机制公开(公告)号：US20150092539A1
公开(公告)日：2015-04-02
申请号：US14041392
申请日：2013-09-30
IPC分类号： H04L12/24 , H04L12/707 , H04L12/703
CPC分类号： H04L45/22 , H04L12/42 , H04L12/437 , H04L45/28 , H04L45/50 , H04L45/68 , H04L47/70 , H04L47/746 , H04L47/825
摘要： In one embodiment, a source transmits one or more data packets to a destination over a primary pseudowire (PW). When a device on the primary PW detects a downstream failure of the primary PW, and in response to receiving one or more data packets from a source from the failed primary PW, the device adds a loopback packet identifier to the one or more received data packets, and returns the one or more data packets with the loopback packet identifier to the source upstream on the primary PW. Accordingly, in response to receiving the data packet returned with a loopback packet identifier from the primary PW (in response to the downstream failure), the source retransmits the one or more data packets to the destination over a backup PW.
摘要翻译： 在一个实施例中，源将主要伪线（PW）发送一个或多个数据分组到目的地。 当主PW上的设备检测到主PW的下游故障时，并且响应于从故障主PW接收到来自源的一个或多个数据分组，该设备向一个或多个接收的数据分组添加环回分组标识符 并将具有环回分组标识符的一个或多个数据分组返回到主PW上游源。 因此，响应于从主PW（响应于下游故障）接收到以环回分组标识符返回的数据分组，源通过备份PW将一个或多个数据分组重传到目的地。
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公开(公告)号：US20150043570A1
公开(公告)日：2015-02-12
申请号：US13962226
申请日：2013-08-08
IPC分类号： H04L12/24
CPC分类号： H04L41/0813 , H04L41/0896 , H04L45/02 , H04L45/42
摘要： In one embodiment, a method includes receiving at a node in a first network, information identifying a spare interface between a first network device in the first network and a second network device in a second network, and using the spare interface to create a path in the first network if the spare interface is compatible. The spare interface information includes connectivity and compatibility information.
摘要翻译： 在一个实施例中，一种方法包括在第一网络中的节点处接收标识第一网络中的第一网络设备与第二网络中的第二网络设备之间的备用接口的信息，以及使用备用接口创建路径 第一个网络如果备用接口兼容。 备用接口信息包括连接和兼容性信息。
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公开(公告)号：US10291516B2
公开(公告)日：2019-05-14
申请号：US15001528
申请日：2016-01-20
IPC分类号： H04L12/723 , H04L12/26
摘要： Particular embodiments described herein provide for a communication system that can be configured to identify a system that includes network traffic, where at least a portion of the network traffic includes packets, at least a portion of the packets include a stack, and at least a portion of each stack includes one or more previously allocated labels. The communication system can further be configured to determine a synonymous label that triggers an action and to replace a label from the one of the one or more previously allocated labels in a specific stack of a specific packet with the synonymous label. In an example, the synonymous label can be used to identify a subset of packets in the network traffic or a source of the specific packet.
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公开(公告)号：US09722916B2
公开(公告)日：2017-08-01
申请号：US14041392
申请日：2013-09-30
IPC分类号： H04L12/707 , H04L12/703 , H04L12/42 , H04L12/911 , H04L12/723 , H04L12/54 , H04L12/437 , H04L12/721
CPC分类号： H04L45/22 , H04L12/42 , H04L12/437 , H04L45/28 , H04L45/50 , H04L45/68 , H04L47/70 , H04L47/746 , H04L47/825
摘要： In one embodiment, a source transmits one or more data packets to a destination over a primary pseudowire (PW). When a device on the primary PW detects a downstream failure of the primary PW, and in response to receiving one or more data packets from a source from the failed primary PW, the device adds a loopback packet identifier to the one or more received data packets, and returns the one or more data packets with the loopback packet identifier to the source upstream on the primary PW. Accordingly, in response to receiving the data packet returned with a loopback packet identifier from the primary PW (in response to the downstream failure), the source retransmits the one or more data packets to the destination over a backup PW.
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公开(公告)号：US20170111268A1
公开(公告)日：2017-04-20
申请号：US14886010
申请日：2015-10-17
发明人： George Swallow , Tarek Saad
IPC分类号： H04L12/723 , H04L12/729 , H04L12/741
CPC分类号： H04L45/50 , H04L45/00 , H04L45/125 , H04L45/74
摘要： In one embodiment, a device in a network determines that traffic sent via a first label switched path should be sent via a new label switched path. The device sends the traffic along the new label switched path using a label stack that indicates one or more adjacency segments or interface binding labels. A particular node along the new label switched path is configured to forward the traffic via a particular interface of the node based on a corresponding interface binding label or adjacency segment indicated by the traffic. The device completes a switchover from the first path to the new path.
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公开(公告)号：US20170041219A1
公开(公告)日：2017-02-09
申请号：US14819346
申请日：2015-08-05
IPC分类号： H04L12/703 , H04L12/723
摘要： In one embodiment, a method includes generating at a network device, a continuity test packet configured to pass through a set of communication paths terminating at the network device and at least one other network device located at an opposite end of the communication paths, transmitting at the network device the continuity test packet on a first communication path in the set of communication paths, and identifying at the network device a failure in the set of communication paths if the continuity test packet is not received on a last communication path in the set of communication paths. An apparatus and logic are also disclosed herein.
摘要翻译： 在一个实施例中，一种方法包括在网络设备处生成连续性测试分组，所述连续性测试分组被配置成通过终止于所述网络设备的一组通信路径以及位于所述通信路径的相对端的至少一个其他网络设备， 所述网络设备在所述一组通信路径中的第一通信路径上的所述连续性测试分组，以及如果在所述一组通信路径中的最后通信路径上未接收到所述连续性测试分组，则在所述网络设备处识别所述通信路径集合中的故障 通信路径 本文还公开了一种装置和逻辑。
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