公开(公告)号：US09768968B2

公开(公告)日：2017-09-19

申请号：US14980649

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li

IPC: H04L12/28 ,  H04L12/18 ,  H04L12/46 ,  H04L12/761 ,  H04L12/741

CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/46 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/74

Abstract: A first multihoming network virtualization edge (NVE) configured to receive a first multicast packet sent by a multihomed tenant end system (TES), acquire an ingress port of the first multicast packet and a virtual local area network (VLAN) identifier (ID) of the first multicast packet, acquire a virtual overlay network (VN) ID of the first multicast packet according to the ingress port and the VLAN ID, determine whether the ingress port is a designated forwarder (DF) of the VN ID, encapsulate the first multicast packet with an extended NVO3 header when the ingress port is not the DF of the VN ID, and send the first multicast packet that is encapsulated with the extended NVO3 header to another NVE that includes a second multihoming NVE, where the extended NVO3 header carries the VN ID and a link aggregation group (LAG) ID that corresponds to the ingress port.

公开(公告)号：US09762410B2

公开(公告)日：2017-09-12

申请号：US14562678

申请日：2014-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li ,  Yuanbin Yin ,  Chenglong Ding

IPC: G01R31/08 ,  H04L12/28 ,  H04L12/46 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721

CPC classification number: H04L12/462 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/02 ,  H04L45/66

Abstract: The present application provides a method and a device for clearing a MAC forwarding entry. The method includes: detecting, by a first RB, that a topology of a network accessed by a local terminal changes; and sending, by the first RB, a first packet to a second RB, so that the second RB clears a corresponding forwarding entry after receiving the first packet, where the second RB refers to an RB configured with at least one VLAN the same as that of the first RB. According to embodiments of the present application, after the topology of the network accessed by the local terminal changes, MAC forwarding entries of relevant devices in a whole network can be cleared in time, thereby avoiding a forwarding error.

公开(公告)号：US20160285646A1

公开(公告)日：2016-09-29

申请号：US15176849

申请日：2016-06-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Ying Xie ,  Fengming Zhou

IPC: H04L12/46 ,  H04L12/721 ,  H04L12/703

Abstract: A troubleshooting method and apparatus for an edge routing bridge (RB) in a Transparent Interconnection of Lots of Links (TRILL) campus, which belong to the field of communications technologies, where the method includes detecting, by a first edge RB in a multi-homing access group, whether an access link of the first edge RB is faulty, and sending, by the first edge RB, a fault notification message to one or more other edge RBs except the first edge RB in the multi-homing access group using the TRILL campus, when the access link of the first edge RB is faulty, where the fault notification message is used to notify the one or more other edge RBs that the access link of the first edge RB is faulty, and hence effectively increase a network convergence speed and network reliability.

Abstract translation: 属于通信技术领域的多个链路（TRILL）校园的透明互连中的边缘路由桥（RB）的故障排除方法和装置，其中该方法包括通过多路链路中的第一边缘RB进行检测， 归属接入组，第一边缘RB的接入链路是否有故障，并且通过第一边缘RB向多归属接入组中的第一边缘RB之外的一个或多个其他边缘RB发送故障通知消息，使用 TRILL校园，当第一边缘RB的接入链路故障时，故障通知消息用于通知一个或多个其他边缘RB，第一边缘RB的接入链路故障，从而有效地增加网络收敛 速度和网络可靠性。

公开(公告)号：US20150092602A1

公开(公告)日：2015-04-02

申请号：US14562678

申请日：2014-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Yizhou Li ,  Zhenbin Li ,  Yuanbin Yin ,  Chenglong Ding

IPC: H04L12/46 ,  H04L12/24

CPC classification number: H04L12/462 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/02 ,  H04L45/66

Abstract: The present application provides a method and a device for clearing a MAC forwarding entry. The method includes: detecting, by a first RB, that a topology of a network accessed by a local terminal changes; and sending, by the first RB, a first packet to a second RB, so that the second RB clears a corresponding forwarding entry after receiving the first packet, where the second RB refers to an RB configured with at least one VLAN the same as that of the first RB. According to embodiments of the present application, after the topology of the network accessed by the local terminal changes, MAC forwarding entries of relevant devices in a whole network can be cleared in time, thereby avoiding a forwarding error.

Abstract translation: 本申请提供了清除MAC转发表项的方法和设备。 该方法包括：由第一RB检测由本地终端接入的网络的拓扑变化; 并且由第一RB发送第一分组到第二RB，使得第二RB在接收到第一分组之后清除对应的转发表项，其中第二RB参考配置有至少一个VLAN的RB，与其相同 的第一个RB。 根据本申请的实施例，本地终端接入的网络拓扑变化后，可以及时清除整个网络的相关设备的MAC转发表项，从而避免转发错误。

公开(公告)号：US20150063094A1

公开(公告)日：2015-03-05

申请号：US14534461

申请日：2014-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yizhou Li ,  Weiguo Hao

IPC: H04L12/26 ,  H04L12/703 ,  H04L12/707 ,  H04L12/18

CPC classification number: H04L43/0811 ,  H04L12/1863 ,  H04L45/20 ,  H04L45/22 ,  H04L45/28

Abstract: The present invention discloses a method, an apparatus, and a system for detecting connectivity. A node receives connectivity detection request information; determines, according to nicknames of target nodes, whether the is one of the target nodes; if the node is one of the target nodes, sends connectivity detection reply information to a source node; if the node is not one of the target nodes, performs corresponding processing according to a value of a hop count and whether the node is on a path that is in the multicast distribution tree and is from the source node to any one of the target nodes. With the present invention, a source node is capable of receiving only a feedback of a node on a true path, thereby making it easier to identify a path.

Abstract translation: 本发明公开了一种检测连通性的方法，装置和系统。 节点接收连接检测请求信息; 根据目标节点的昵称确定是否是目标节点之一; 如果节点是目标节点之一，则向源节点发送连通性检测应答信息; 如果节点不是目标节点之一，则根据跳数的值进行相应的处理，以及节点是否位于组播分发树中的路径上，并且是从源节点到目标节点中的任何一个 。 利用本发明，源节点能够仅接收真实路径上的节点的反馈，从而使得更容易识别路径。

公开(公告)号：US20250047590A1

公开(公告)日：2025-02-06

申请号：US18919960

申请日：2024-10-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongkang Zhang ,  Weiguo Hao ,  Zhibo Hu ,  Jun Li ,  Haibo Wang ,  Huafeng Wen

IPC: H04L45/12

Abstract: A packet sending method includes, after determining to send a packet based on a non-shortest path and determining that a second network device and a first network device on the non-shortest path belong to different groups, the first network device may send the packet to the second network device, and notify the second network device to send the packet based on a shortest path. After receiving the packet, the second network device may send the packet based on the shortest path, and notify another network device on the shortest path to send the packet based on the shortest path. In this way, in a process of sending the packet, after the packet passes through an inter-group path in the non-shortest path, a remaining path is the shortest path for sending the packet to a destination device.

公开(公告)号：US12184545B2

公开(公告)日：2024-12-31

申请号：US17577579

申请日：2022-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Dongdong Li ,  Huafeng Wen

IPC: H04L45/00 ,  H04L45/745 ,  H04L61/103

Abstract: This application provides a packet processing method and a network device. A third network device is multi-homed to a first network device and a second network device, the first network device is configured with a first physical MAC address and a virtual MAC address, the second network device is configured with a second physical MAC address and the virtual MAC address, and the virtual MAC address is used to forward a user data packet to a network side. The method includes: a first network device receives a protocol packet from a third network device, where the protocol packet includes the second physical MAC address; and the first network device forwards the protocol packet to the second network device based on the second physical MAC address. Thus, the protocol packet can be normally forwarded without special configuration on a server, so that a cumbersome configuration process is avoided.

公开(公告)号：US20230116548A1

公开(公告)日：2023-04-13

申请号：US18066625

申请日：2022-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Haibo Wang ,  Xingjian He ,  Gang Yan ,  Liangchuan Gao

IPC: H04L45/28 ,  H04L41/12

Abstract: A first network device obtains first information. The first information indicates that a first link is faulty, and the first link is a link between any two network devices in a network system to which the first network device belongs. The first network device sends the first information to a second network device by using BGP, for example, sends a link fault message to the second network device by using BGP. The link fault message carries the first information. The second network device is a neighbor device of the first network device. The first network device determines an unreachable route in a routing table of the first network device based on the first information and a topology of the network system. A path corresponding to the unreachable route includes the first link. The first network device marks the unreachable route as invalid.

公开(公告)号：US10771284B2

公开(公告)日：2020-09-08

申请号：US15176849

申请日：2016-06-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Ying Xie ,  Fengming Zhou

IPC: H04L12/46 ,  H04L12/721 ,  H04L12/703

Abstract: A troubleshooting method and apparatus for an edge routing bridge (RB) in a Transparent Interconnection of Lots of Links (TRILL) campus, which belong to the field of communications technologies, where the method includes detecting, by a first edge RB in a multi-homing access group, whether an access link of the first edge RB is faulty, and sending, by the first edge RB, a fault notification message to one or more other edge RBs except the first edge RB in the multi-homing access group using the TRILL campus, when the access link of the first edge RB is faulty, where the fault notification message is used to notify the one or more other edge RBs that the access link of the first edge RB is faulty, and hence effectively increase a network convergence speed and network reliability.

公开(公告)号：US20200044969A1

公开(公告)日：2020-02-06

申请号：US16598506

申请日：2019-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiguo Hao ,  Xinjun Xu ,  Hao Wu ,  Fei Zhang

IPC: H04L12/741 ,  H04L12/24 ,  H04L12/46 ,  H04L12/703 ,  H04L12/721

Abstract: A data packet forwarding method and an apparatus, where the method includes: receiving, by a forwarding device, a first default flow entry of the virtual network from a controller, where the first default flow entry of the virtual network instructs the forwarding device to send a data packet to a specified forwarding device when the forwarding device looks up a first flow table based on a match item of the data packet but no flow entry is hit; receiving, a first data packet from an end system; and when the controller is faulty and the forwarding device looks up the first flow table based on a match item of the first data packet but no flow entry is hit, sending, by the forwarding device, the first data packet to the specified forwarding device using the first default flow entry of the virtual network.