公开(公告)号：US11218408B2

公开(公告)日：2022-01-04

申请号：US16879100

申请日：2020-05-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/723 ,  H04L12/24 ,  H04L12/46 ,  H04L12/911

Abstract: The present disclosure discloses a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet.

公开(公告)号：US10833986B2

公开(公告)日：2020-11-10

申请号：US16236782

申请日：2018-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/715

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US10749804B2

公开(公告)日：2020-08-18

申请号：US15989199

申请日：2018-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Shuanglong Chen ,  Zhenbin Li ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/803 ,  H04L12/707 ,  H04L12/721 ,  H04L12/743 ,  H04L12/911 ,  H04L12/723

Abstract: The present disclosure discloses a method and an apparatus for implementing load sharing. The method includes: for a congested first link on a first forwarding node, selecting, by a network device, a packet flow forwarded by using the first link; selecting a second link that may be used to forward the packet flow and that is not congested after available bandwidth of the second link is occupied by the packet flow, where the second link is a link between the first forwarding node and a second forwarding node; selecting a first hash gene corresponding to the second link; determining that a third link is not in a congested state after available bandwidth of the third link is occupied by the packet flow; and saving the first hash gene in a source node of the packet flow, where the third link is a link that is on the second forwarding node.

公开(公告)号：US11909633B2

公开(公告)日：2024-02-20

申请号：US17536507

申请日：2021-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L45/50 ,  H04L41/00 ,  H04L12/46 ,  H04L47/70

CPC classification number: H04L45/507 ,  H04L12/4641 ,  H04L41/00 ,  H04L47/825

Abstract: The present disclosure discloses a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet.

公开(公告)号：US20230048749A1

公开(公告)日：2023-02-16

申请号：US17965861

申请日：2022-10-14

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L45/74 ,  H04L45/302 ,  H04L45/64

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US11290386B2

公开(公告)日：2022-03-29

申请号：US17023790

申请日：2020-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Nan Wu ,  Jianjie You

IPC: H04L12/851 ,  H04L12/715 ,  H04L12/46 ,  H04L12/66 ,  H04L12/801 ,  H04L47/2441 ,  H04L45/00 ,  H04L45/64 ,  H04L47/33

Abstract: The present disclosure discloses a flow specification (FlowSpec) message processing method. In the method, a controller forwards device interface information reported by the forwarding device; selects at least one forwarding device interface to which a FlowSpec rule needs to be applied from the received forwarding device interface information; generates an application interface rule based on the at least one forwarding device interface to which the FlowSpec rule needs to be applied; and sends a FlowSpec message to the forwarding device.

公开(公告)号：US20210044525A1

公开(公告)日：2021-02-11

申请号：US17079415

申请日：2020-10-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/715

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US10791059B2

公开(公告)日：2020-09-29

申请号：US16240242

申请日：2019-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Nan Wu ,  Jianjie You

IPC: H04L12/851 ,  H04L12/801 ,  H04L12/715 ,  H04L12/66 ,  H04L12/46

Abstract: The present disclosure discloses a flow specification (FlowSpec) message processing method. In the method, a controller forwards device interface information reported by the forwarding device; selects at least one forwarding device interface to which a FlowSpec rule needs to be applied from the received forwarding device interface information; generates an application interface rule based on the at least one forwarding device interface to which the FlowSpec rule needs to be applied; and sends a FlowSpec message to the forwarding device.

公开(公告)号：US20190036794A1

公开(公告)日：2019-01-31

申请号：US16148429

申请日：2018-10-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Hui Ni ,  Nan Wu

IPC: H04L12/26 ,  H04L12/721

Abstract: A control method for collecting traffic statistics includes a control node obtains a statistics collection instruction, where the statistics collection instruction is used to instruct to collect traffic statistics of a target data flow, generates a traffic statistics collection policy according to the statistics collection instruction, where the traffic statistics collection policy includes a matching identifier of the target data flow, a first command, and a second command, and sends the traffic statistics collection policy to a forwarding node. The first command is used to instruct the forwarding node to set a traffic identifier for the target data flow based on the matching identifier, the second command is used to instruct the forwarding node to add traffic generated by a target packet to a traffic statistics collection result corresponding to the traffic identifier which is used to describe the traffic of the target data flow.

公开(公告)号：US11855877B2

公开(公告)日：2023-12-26

申请号：US16279398

申请日：2019-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changjiang Yan ,  Shunwan Zhuang ,  Nan Wu

IPC: H04L45/00 ,  H04L12/46 ,  H04L12/66 ,  H04L45/745

CPC classification number: H04L45/20 ,  H04L12/4633 ,  H04L12/66 ,  H04L45/745

Abstract: An information management method includes that a controller generates a first message carrying an address of a first next hop of a network device. The first message includes first identification information. The first identification information instructs the network device to delete, from a next hop table stored in the network device, an entry of the first next hop corresponding to the address of the first next hop. The network device receives the first message, and deletes the entry of the first next hop as indicated by the first identification information. The controller withdraw an unavailable next hop by separately sending information about the next hop to the network device without route prefix information, effectively saving a system resource occupied for route withdrawal message exchanging between the controller and the network device, and improving service processing efficiency.