公开(公告)号：US09270485B2

公开(公告)日：2016-02-23

申请号：US13683028

申请日：2012-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Long

IPC: H04L12/437 ,  H04L12/46 ,  H04L12/751 ,  H04L12/705 ,  H04L12/703 ,  H04L12/753

CPC classification number: H04L12/437 ,  H04L12/4637 ,  H04L45/02 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48

Abstract: An Ethernet Ring Protection (ERP) method is disclosed. The method includes: when a link on an Ethernet ring network is faulty, determining whether the faulty link is a link where a normally blocked port is located; and sending a first control message which carries first indication information to a ring node on the Ethernet ring network if the faulty link is the link where the normally blocked port is located, wherein the first indication information indicates that a forwarding table is not desired to be cleared by the ring node. Through the method according to the present invention, the broadcast traffic generated by unnecessary clearing of the forwarding table and self-learning is reduced effectively.

Abstract translation: 公开了以太网环保护（ERP）方法。 该方法包括：当以太网环网上的链路故障时，判断故障链路是否为正常阻塞端口所在的链路; 并且如果所述故障链路是正常阻塞端口所在的链路，则向所述以太环网上的环节点发送携带第一指示信息的第一控制消息，其中，所述第一指示信息指示转发表不希望为 由环节点清除。 通过根据本发明的方法，有效地减少了不必要地清除转发表和自学习产生的广播流量。

公开(公告)号：US09258189B2

公开(公告)日：2016-02-09

申请号：US13967016

申请日：2013-08-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanxing Luo ,  Hao Long ,  Min Yan

IPC: H04L12/24 ,  H04L12/723 ,  H04L12/913 ,  H04L12/911

CPC classification number: H04L41/0896 ,  H04L41/12 ,  H04L45/507 ,  H04L47/724 ,  H04L47/825

Abstract: A method, node device, and system are disclosed for establishing a label switched path, which belong to the field of communications technologies. Establishing the label switched path between a source node and a sink node utilizes a connection establishment request message that carries bandwidth request information corresponding to different conditions. Based on the bandwidth request information corresponding to the different conditions, various amounts of bandwidth resources corresponding to the different conditions are reserved on local links that establish a connection between the source node and the sink node.

Abstract translation: 公开了一种用于建立属于通信技术领域的标签交换路径的方法，节点设备和系统。 在源节点和汇聚节点之间建立标签交换路径利用携带与不同条件对应的带宽请求信息的连接建立请求消息。 基于与不同条件对应的带宽请求信息，在建立源节点和汇聚节点之间的连接的本地链路上保留与不同条件对应的各种带宽资源量。

公开(公告)号：US09246751B2

公开(公告)日：2016-01-26

申请号：US13892796

申请日：2013-05-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Long ,  Rong Xie ,  Xiaojun Shen

IPC: H04L12/28 ,  H04L12/24 ,  H04L12/437

CPC classification number: H04L41/0654 ,  H04L12/437 ,  H04L41/0663

Abstract: Embodiments of the present disclosure provide an Ethernet ring protection switching method, network device and system. In the embodiments of the present disclosure, a node obtains bandwidth information of a first link on an Ethernet ring on which the node is located, and determines that bandwidth of the first link changes, where there is at least one Ethernet ring protection instance on the Ethernet ring, and then the node determines ports of the node, where the at least one Ethernet ring protection instance passes through the ports, so that the node can query pre-configured correspondence between bandwidth information and switching information of each link on the Ethernet ring, and execute, through the ports of the node, a switching operation corresponding to the bandwidth information of the first link.

Abstract translation: 本公开的实施例提供了一种以太网环保护交换方法，网络设备和系统。 在本公开的实施例中，节点获取节点所在的以太网环上的第一链路的带宽信息，并确定第一链路的带宽改变，其中，在该环路上存在至少一个以太网环保护实例 以太网环，然后节点确定节点的端口，其中至少一个以太网环保护实例通过端口，以便节点可以查询以太网环上每个链路的带宽信息和交换信息之间的预先配置的对应关系 并且通过节点的端口执行与第一链路的带宽信息相对应的切换操作。

公开(公告)号：US20140254347A1

公开(公告)日：2014-09-11

申请号：US14286551

申请日：2014-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rong Xie ,  Yiqing Huang ,  Hao Long

IPC: H04L12/437

CPC classification number: H04L12/437 ,  H04L12/4625

Abstract: Embodiments of the present invention disclose an Ethernet ring protection switching method, node, and system. In an Ethernet ring protection switching method is disclosed, it is determined whether the current link is a lower-bandwidth link according to bandwidth information of a current link and bandwidth information of another link on a ring. If the current link is a lower-bandwidth link, a port corresponding to the current link is blocked.

Abstract translation: 本发明的实施例公开了一种以太网环保护交换方法，节点和系统。 在以太网环路保护切换方法中，根据当前链路的带宽信息和环上的其他链路的带宽信息，确定当前链路是否为低带宽链路。 如果当前链路是低带宽链路，则与当前链路相对应的端口被阻塞。

公开(公告)号：US20130077474A1

公开(公告)日：2013-03-28

申请号：US13683028

申请日：2012-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hao Long

IPC: H04L12/437

CPC classification number: H04L12/437 ,  H04L12/4637 ,  H04L45/02 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48

Abstract: An Ethernet Ring Protection (ERP) method is disclosed. The method includes: when a link on an Ethernet ring network is faulty, determining whether the faulty link is a link where a normally blocked port is located; and sending a first control message which carries first indication information to a ring node on the Ethernet ring network if the faulty link is the link where the normally blocked port is located, wherein the first indication information indicates that a forwarding table is not desired to be cleared by the ring node. Through the method according to the present invention, the broadcast traffic generated by unnecessary clearing of the forwarding table and self-learning is reduced effectively.

Abstract translation: 公开了以太网环保护（ERP）方法。 该方法包括：当以太网环网上的链路故障时，判断故障链路是否为正常阻塞端口所在的链路; 并且如果所述故障链路是正常阻塞端口所在的链路，则向所述以太环网上的环节点发送携带第一指示信息的第一控制消息，其中，所述第一指示信息指示转发表不希望为 由环节点清除。 通过根据本发明的方法，有效地减少了不必要地清除转发表和自学习产生的广播流量。