公开(公告)号：US20230115034A1

公开(公告)日：2023-04-13

申请号：US18045175

申请日：2022-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong Xie ,  Yang Xia ,  Xuesong Geng

IPC: H04L45/00 ,  H04L45/741 ,  H04L9/32 ,  H04L9/08

Abstract: This application provides a packet verification method, and the method includes: A first network device receives a BIER packet, where packet header information of the BIER packet includes a first keyed-hash message authentication code HMAC, and the first HMAC is used to verify whether the BIER packet is a valid BIER packet; determines a second HMAC based on a first key and first information in the packet header information, where the first information is used to indicate forwarding information of the BIER packet; determines whether the first HMAC is the same as the second HMAC; and when determining that the first HMAC is different from the second HMAC, determines that the BIER packet is an invalid BIER packet.

公开(公告)号：US20220353183A1

公开(公告)日：2022-11-03

申请号：US17865813

申请日：2022-07-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L45/74 ,  H04L47/24 ,  H04L47/28

Abstract: A packet sending method of a controller includes obtaining a forwarding latency requirement of a service flow and a destination address of the service flow; determining a forwarding path that meets the forwarding latency requirement, and determining a number of a first cycle time in which an ingress node forwards a packet and a number of a second cycle time in which an intermediate node forwards the packet; sending a first entry to the ingress node that includes a sequence number of the packet and the first cycle time number; and sending a second entry to the intermediate node that includes the sequence number of the packet and the second cycle time number.

公开(公告)号：US11316783B2

公开(公告)日：2022-04-26

申请号：US16830214

申请日：2020-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/723 ,  H04L12/46 ,  H04L45/50 ,  H04L45/24 ,  H04L45/74 ,  H04L47/2483 ,  H04L47/34 ,  H04L69/22

Abstract: A method for forwarding a packet, and a network device are provided. The method includes: receiving, a first packet, where the first packet includes first indication information, payload data, and a packet sequence number of the first packet in a data flow corresponding to the first packet; when the first network device determines that the first packet includes the first indication information, generating, a plurality of second packets based on the first packet, where each of the plurality of second packets includes the payload data, the packet sequence number, and second indication information; and separately forwarding, the plurality of second packets to a second network device over different forwarding paths in a plurality of forwarding paths.

公开(公告)号：US20210320929A1

公开(公告)日：2021-10-14

申请号：US17227720

申请日：2021-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Yang Xia ,  Xuesong Geng

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/751

Abstract: A packet detection method includes obtaining, by a first network device, a Bit Index Explicit Replication (BIER) packet, where the BIER packet includes trap information, and the trap information indicates whether the BIER packet is a valid BIER packet, determining, by the first network device, whether the trap information is valid, and determining, by the first network device, that the BIER packet is an invalid BIER packet when the first network device determines that the trap information is valid.

公开(公告)号：US20210014168A1

公开(公告)日：2021-01-14

申请号：US17035687

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/841 ,  H04L12/741 ,  H04L12/727

Abstract: A controller obtains a forwarding latency requirement of a service flow and a destination address of the service flow, and determines a forwarding path that meets the forwarding latency requirement. The controller determines that an ingress node forwards a first cycle time number of a packet and an intermediate node forwards a second cycle time number of the packet, and separately determines a corresponding adjacent segment identifier. A label stack generated by the controller includes the adjacent segment identifier and the adjacent segment identifier. The controller sends the label stack to the ingress node, to trigger the ingress node to forward the packet within a period of time corresponding to the first cycle time number. The controller determines the forwarding path based on the forwarding latency requirement of the service flow, and generates a label stack corresponding to a forwarding time point.

公开(公告)号：US11855888B2

公开(公告)日：2023-12-26

申请号：US18045175

申请日：2022-10-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong Xie ,  Yang Xia ,  Xuesong Geng

IPC: H04L45/00 ,  H04L9/08 ,  H04L9/32 ,  H04L45/741

CPC classification number: H04L45/566 ,  H04L9/0825 ,  H04L9/3242 ,  H04L45/741

Abstract: This application provides a packet verification method, and the method includes: A first network device receives a BIER packet, where packet header information of the BIER packet includes a first keyed-hash message authentication code HMAC, and the first HMAC is used to verify whether the BIER packet is a valid BIER packet; determines a second HMAC based on a first key and first information in the packet header information, where the first information is used to indicate forwarding information of the BIER packet; determines whether the first HMAC is the same as the second HMAC; and when determining that the first HMAC is different from the second HMAC, determines that the BIER packet is an invalid BIER packet.

公开(公告)号：US20230318974A1

公开(公告)日：2023-10-05

申请号：US18327541

申请日：2023-06-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Fanghong Duan ,  Xuesong Geng

IPC: H04L45/741 ,  H04L12/46 ,  H04L45/16

CPC classification number: H04L45/741 ,  H04L12/4641 ,  H04L45/16

Abstract: A first network device receives a BIER packet sent by a second network device. The BIER packet includes a data packet and a global VPN identifier, the global VPN identifier is for uniquely identifying, in a BIER domain, a VPN to which a source device of the data packet belongs, the global VPN identifier includes an identifier of the second network device and a first identifier, and the first identifier is for identifying, on the second network device, the VPN to which the source device of the data packet belongs. The first network device determines, based on the global VPN identifier, a first VPN corresponding to the global VPN identifier. The first network device sends the data packet to the destination device of the data packet corresponding to the first VPN.

公开(公告)号：US20230198892A1

公开(公告)日：2023-06-22

申请号：US18168395

申请日：2023-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuying Liu ,  Ting Liao ,  Wei Fang ,  Rui Gu ,  Jingrong Xie ,  Xuesong Geng

IPC: H04L45/16 ,  H04L45/741

CPC classification number: H04L45/16 ,  H04L45/741

Abstract: A method for sending a multicast packet provided in embodiments of this application includes: a first network device obtains a first multicast packet, where the first multicast packet includes a bit string bit string and an identifier of a network slice, the bit string corresponds to a second network device, and the network slice corresponds to a multicast service of the second network device. The first network device obtains, based on the bit string and the identifier of the network slice, a first interface corresponding to the network slice. The first network device sends the first multicast packet to the second network device by using the first interface.

公开(公告)号：US20230188458A1

公开(公告)日：2023-06-15

申请号：US18164415

申请日：2023-02-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong Xie ,  Xuesong Geng ,  Fanghong Duan

IPC: H04L45/00 ,  H04L45/16

CPC classification number: H04L45/20 ,  H04L45/16 ,  H04L45/70

Abstract: An IPv6 packet sending method, a device, and a system is provided. The method includes a first network device receives a first IPv6 packet, where the first IPv6 packet includes a packet header and an inner packet, and the packet header includes a hop limit field. The network device further determines whether a value of the hop limit field is less than or equal to a preset threshold, determines whether the inner packet is a multicast packet, and avoids forwarding the first IPv6 packet when the value of the hop limit field is less than or equal to the preset threshold and the inner packet is the multicast packet.

公开(公告)号：US20230073121A1

公开(公告)日：2023-03-09

申请号：US17903322

申请日：2022-09-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L45/00 ,  H04L45/24

Abstract: A segment routing (SR) policy issuing method applied to an SR network. The SR network includes a path computation node (PCN), a first node, and a second node, a first path and a second path between the first node and the second node. The first node is a source node of the first path and the second path. The second node is a destination node of the first path and the second path. The method includes the PCN generating an SR policy and sending the SR policy to the first node. The SR policy indicates to the first node to generate a first packet flow and a second packet flow based on an original packet flow, send the first packet flow through the first path, and send the second packet flow through the second path.