公开(公告)号：US10541914B2

公开(公告)日：2020-01-21

申请号：US15812642

申请日：2017-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Feng ,  Jianyao Liang ,  Huibin Luo

IPC: H04L12/801 ,  H04L12/721 ,  H04L12/707 ,  H04L12/723 ,  H04L12/46 ,  H04L12/733 ,  H04L12/741 ,  H04L29/12

Abstract: A data packet forwarding method and a network device, where the method includes, receiving a data packet, obtaining a local physical address and a destination physical address of the data packet when the entry matching the data packet does not exist in the first match table, determining whether the local physical address is the same as the destination physical address, searching a second match table for an entry in which a physical address matches the destination physical address when the local physical address is different from the destination physical address, generating a layer 2 forwarding entry according to the entry matching the destination physical address, and forwarding the data packet according to the layer 2 forwarding entry. Therefore, processing efficiency of the new data packet and network performance are improved.

公开(公告)号：US10116555B2

公开(公告)日：2018-10-30

申请号：US15387200

申请日：2016-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang

IPC: H04L12/28 ,  H04L12/721 ,  H04L12/725 ,  H04L12/741 ,  H04L12/935 ,  H04L12/781 ,  H04L12/715 ,  H04J1/16 ,  H04L12/46

Abstract: Embodiments of the present invention provide a switch mode switching method, a device, and a system, so that routing and switching information in a hardware forwarding entry in the conventional switching mode is represented in a form of OpenFlow flow table. The method includes: receiving, by a switch, a mode switch request message that is sent by a controller and that is used to request the switch to switch from a conventional switching mode to an OpenFlow switching mode; freezing, by the switch, all routing and switching information tables of the switch in the conventional switching mode, and generating, according to routing and switching information in each routing and switching information table, an OpenFlow flow table corresponding to the routing and switching information table; and switching, by the switch, to the OpenFlow switching mode, and sending a mode switch response message to the controller.

公开(公告)号：US10116546B2

公开(公告)日：2018-10-30

申请号：US15284696

申请日：2016-10-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang ,  Huibin Luo

IPC: H04L12/26

Abstract: An operations, administration, and maintenance (OAM) packet processing method, a network device, and a network system are provided. The method includes receiving a first Internet Protocol (IP) packet, where the first IP packet includes an OAM packet, an IP packet header of the OAM packet includes a first source device identifier (ID) and a first sink device ID, and returning a second IP packet to reply to the OAM packet, where the second IP packet includes an OAM reply packet, an IP packet header of the OAM reply packet includes a second source device ID, a second sink device ID, and a second packet type, the second source device ID is an ID of a local network device, and the second sink device ID is the same as the first source device ID. An IP packet header may be used to carry OAM information, which improves a fault detection capability in an OAM method.

公开(公告)号：US20170054630A1

公开(公告)日：2017-02-23

申请号：US15345818

申请日：2016-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang

IPC: H04L12/707 ,  H04L12/741 ,  H04L12/721

CPC classification number: H04L45/22 ,  H04L45/28 ,  H04L45/64

Abstract: A path switching method and a device, including determining, by a controller, an active path and at least one standby path of a data flow, and delivering a flow table to a standby path switch such that after the data flow is switched from the active path to the standby path, the standby path switch forwards the data flow according to the flow table, and delivering, by the controller, a path group table to each failover switch, where the path group table includes an identifier of the active path and standby port information such that when detecting, according to the identifier of the active path, that the active path encounters a failure, each failover switch performs path switching according to the standby port information.

Abstract translation: 一种路径切换方法和装置，包括由控制器确定数据流的活动路径和至少一个备用路径，以及将流表传送到备用路径交换机，使得在数据流从活动 备用路径交换机根据流程表转发数据流，并由控制器将路径组表传递给每个故障切换交换机，其中路径组表包含活动路径和待机的标识符 端口信息，使得当根据活动路径的标识符检测到活动路径遇到故障时，每个故障转移交换机根据备用端口信息执行路径切换。

公开(公告)号：US10200289B2

公开(公告)日：2019-02-05

申请号：US15425663

申请日：2017-02-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quancai Li ,  Jianyao Liang ,  Fengwei Zhang

IPC: H04L12/851 ,  H04L12/721

Abstract: A method executed by a control device in a software defined network is disclosed. According to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.

公开(公告)号：US10122618B2

公开(公告)日：2018-11-06

申请号：US15345818

申请日：2016-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang

IPC: H04L12/707 ,  H04L12/703 ,  H04L12/715

Abstract: A path switching method and a device, including determining, by a controller, an active path and at least one standby path of a data flow, and delivering a flow table to a standby path switch such that after the data flow is switched from the active path to the standby path, the standby path switch forwards the data flow according to the flow table, and delivering, by the controller, a path group table to each failover switch, where the path group table includes an identifier of the active path and standby port information such that when detecting, according to the identifier of the active path, that the active path encounters a failure, each failover switch performs path switching according to the standby port information.

公开(公告)号：US10764195B2

公开(公告)日：2020-09-01

申请号：US16189356

申请日：2018-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quancai Li ,  Jianyao Liang ,  Fengwei Zhang

IPC: H04L12/851 ,  H04L12/721

Abstract: A method executed by a control device in a software defined network where, according to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.

公开(公告)号：US10594590B2

公开(公告)日：2020-03-17

申请号：US15175809

申请日：2016-06-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang ,  Tao Yang

IPC: H04L12/751 ,  H04L29/12 ,  H04L12/733

Abstract: A method and an apparatus for managing a physical location of a network device. The method includes saving, in a first location table, received location information that is sent by a first network device, acquiring topology information of an entire network by communicating with a network controller, searching the topology information for a first top-of-rack switch that has a minimum network hop count to reach the first network device, adding the physical address of the first top-of-rack switch in the first location table to serve as a physical address of the first network device, and building an association between the physical address and the location information of the first network device. Therefore, a physical location of a network device can be conveniently and quickly managed, thereby greatly reducing a manual workload.

公开(公告)号：US20190081901A1

公开(公告)日：2019-03-14

申请号：US16189356

申请日：2018-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quancai Li ,  Jianyao Liang ,  Fengwei Zhang

IPC: H04L12/851 ,  H04L12/721

Abstract: A method executed by a control device in a software defined network where, according to the method, after establishing a control channel with a switching device, the control device obtains an identifier of the control channel. Then, the control device generates a flow entry, where the flow entry includes a match field and the identifier of the control channel. Further, the control device sends the flow entry to the switching device, where the flow entry is used to instruct the switching device to send, to the control device using the control channel represented by the identifier of the control channel, a data packet that matches the match field. Hence, classification of a new flow is completed on a switching device side.

公开(公告)号：US20170026269A1

公开(公告)日：2017-01-26

申请号：US15284696

申请日：2016-10-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang ,  Huibin Luo

IPC: H04L12/26

CPC classification number: H04L43/18 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0876 ,  H04L43/10

Abstract: An operations, administration, and maintenance (OAM) packet processing method, a network device, and a network system are provided. The method includes receiving a first Internet Protocol (IP) packet, where the first IP packet includes an OAM packet, an IP packet header of the OAM packet includes a first source device identifier (ID) and a first sink device ID, and returning a second IP packet to reply to the OAM packet, where the second IP packet includes an OAM reply packet, an IP packet header of the OAM reply packet includes a second source device ID, a second sink device ID, and a second packet type, the second source device ID is an ID of a local network device, and the second sink device ID is the same as the first source device ID. An IP packet header may be used to carry OAM information, which improves a fault detection capability in an OAM method.

Abstract translation: 提供操作，管理和维护（OAM）分组处理方法，网络设备和网络系统。 该方法包括接收第一IP分组包括第一IP分组，其中第一IP分组包括OAM分组，OAM分组的IP分组报头包括第一源设备标识符（ID）和第一宿设备ID，并返回 第二IP分组，以响应所述OAM分组，其中所述第二IP分组包括OAM应答分组，所述OAM应答分组的IP分组报头包括第二源设备ID，第二宿设备ID和第二分组类型， 第二源设备ID是本地网络设备的ID，第二宿设备ID与第一源设备ID相同。 可以使用IP分组报头来携带OAM信息，这提高了OAM方法中的故障检测能力。