公开(公告)号：US20230231805A1

公开(公告)日：2023-07-20

申请号：US18192037

申请日：2023-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuping PENG ,  Yang XIA ,  Jingrong XIE

IPC: H04L45/00 ,  H04L45/741

CPC classification number: H04L45/566 ,  H04L45/38 ,  H04L45/741

Abstract: A packet header information obtaining method. The method includes: obtaining, by a communications device, a first packet, where the first packet includes a plurality of extension packet headers; and obtaining an extension header self-describing option from the first packet, where the extension header self-describing option is used to indicate information about the plurality of extension packet headers. Therefore, the communications device obtains, based on the extension header self-describing option in the first packet, a first extension packet header included in the plurality of extension packet headers. Packet header information of the extension packet header in the first packet can be obtained by using the extension header self-describing option, and the first extension packet header that needs to be parsed can be directly located from the first packet by using the obtained packet header information.

公开(公告)号：US20220376983A1

公开(公告)日：2022-11-24

申请号：US17882343

申请日：2022-08-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong XIE ,  Pingan YANG ,  Yang XIA

IPC: H04L41/0896 ,  H04L41/0894

Abstract: This application relates to the field of communication technologies, and discloses a method and an apparatus for determining a link for forwarding a service flow, and a storage medium. In embodiments of this application, a first forwarding device may obtain identification information of a first service flow; and determine, based on the identification information of the first service flow, a link bandwidth matrix, and link statuses respectively corresponding to N links, a first link for forwarding the first service flow. It can be learned that in embodiments of this application, a hash operation does not need to be performed based on a device identifier of each forwarding device, and a specific forwarding device that performs forwarding does not need to be determined by comparing a plurality of hash values. Therefore, an amount of calculation is small and efficiency is high.

公开(公告)号：US20210044514A1

公开(公告)日：2021-02-11

申请号：US17080404

申请日：2020-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jingrong XIE ,  Gang YAN ,  Yang XIA ,  Shunwan ZHUANG ,  Guoyi CHEN

IPC: H04L12/761 ,  H04L12/741 ,  H04L12/18 ,  H04L12/911

Abstract: This application provides a multicast data packet processing method and a forwarding device. The method includes: establishing, by a first forwarding device, a segment routing header SRH-based tunnel with a third forwarding device, where the SRH-based tunnel passes through a second forwarding device that does not support bit index explicit replication BIER; generating, by the first forwarding device, a first multicast data packet based on a multicast data packet from a multicast source and the SRH-based tunnel, where the first multicast data packet includes a first packet header, a second packet header, and the multicast data packet from the multicast source, the first packet header includes an SRH header, and a destination address included in the second packet header is an address of the second forwarding device; and sending, by the first forwarding device, the first multicast data packet to the second forwarding device through the SRH-based tunnel.

公开(公告)号：US20210266189A1

公开(公告)日：2021-08-26

申请号：US17241464

申请日：2021-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingrong XIE ,  Yang XIA

IPC: H04L12/18 ,  H04L12/46 ,  H04L12/741 ,  H04L29/08

Abstract: A packet forwarding method. The method includes: a first node configures a first identifier of a first VPN and a first IPv6 address on a control plane. The first node sends a first indication message to a second node, where the first indication message carries the first identifier and the first IPv6 address. The second node first determines, based on locally configured information about the first VPN and the first identifier in the first indication message, a second identifier that is of the second node and that satisfies a preset correspondence with the first identifier, and then establishes a correspondence between the first IPv6 address and the second identifier. The first node encapsulates, on a forwarding plane based on the first IPv6 address, a multicast data packet belonging to the first VPN, to obtain a to-be-forwarded BIER packet and sends the to-be-forwarded BIER packet.

公开(公告)号：US20220263760A1

公开(公告)日：2022-08-18

申请号：US17735944

申请日：2022-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Taixu TIAN ,  Yang XIA ,  Jingrong XIE ,  Bing HAN

IPC: H04L47/125 ,  H04L45/745

Abstract: This application discloses a method, and a device for load balancing in a BIER network. The method includes: a network device obtains a BIER packet, and determines, based on an identifier in the BIER packet, a target next-hop node that reaches a destination address of the first BIER packet from a plurality of next-hop nodes of the network device. Then, the network device generates a target forwarding table based on the target next-hop node, and forwards the first BIER packet based on the target forwarding table. In this application, a control plane does not perform load balancing on a BIER packet in a manner of delivering a large quantity of load balancing tables to a forwarding plane, but the forwarding plane of the network device generates the target forwarding table to perform load balancing on the BIER packet.