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：US20170041215A1

公开(公告)日：2017-02-09

申请号：US15332159

申请日：2016-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yisong LIU ,  Yuanbin Yin

IPC: H04L12/707 ,  H04L12/26 ,  H04L12/741 ,  H04L12/24 ,  H04L12/761 ,  H04L12/703

CPC classification number: H04L45/22 ,  H04L12/18 ,  H04L41/0631 ,  H04L43/10 ,  H04L45/16 ,  H04L45/28 ,  H04L45/74

Abstract: Embodiments of the present invention provide a path checking method, a sink node device, and a communications system. The path checking method includes: a sink node determines whether a check packet sent by an ingress node by using a check multicast tree is received within a predetermined time, where the sink node is a node connected to a receiver, the ingress node is a node connected to a multicast source, and the check multicast tree and a first multicast tree have a same transmission path and different multicast addresses; and if the sink node determines that no check packet sent by the ingress node by using the check multicast tree is received within the predetermined time, the sink node determines a path fault exists in an upstream node of the sink node in the first multicast tree.

Abstract translation: 本发明的实施例提供路径检查方法，汇聚节点设备和通信系统。 路径检查方法包括：汇聚节点确定在预定时间内是否接收到入节点通过使用检查多播树发送的检查分组，其中汇聚节点是连接到接收者的节点，入口节点是节点 连接到组播源，校验组播树和第一组播树具有相同的传输路径和不同的组播地址; 并且如果接收节点确定在预定时间内没有接收到由入节点发送的检查分组，则汇聚节点确定在第一多播树中的汇聚节点的上游节点中存在的路径故障。

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。