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公开(公告)号：US11929923B2
公开(公告)日：2024-03-12
申请号：US18327556
申请日：2023-06-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanghong Duan , Jingrong Xie , Zhidan Zhu
IPC: H04L45/42 , H04L45/655 , H04L45/748
CPC classification number: H04L45/42 , H04L45/655 , H04L45/748
Abstract: In accordance with an embodiment, a packet transmission method includes receiving, by a second provider edge (PE) through a multicast tunnel, a bit indexed explicit replication (BIER) packet sent by a first PE, wherein the BIER packet comprises a bit string, and the bit string indicates a customer edge (CE) designated to receive the BIER packet; and processing, by the second PE based on the bit string, the BIER packet.
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22.发明授权公开(公告)号：US11882031B2
公开(公告)日：2024-01-23
申请号：US18192037
申请日：2023-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shuping Peng , Yang Xia , Jingrong Xie
IPC: G06F15/16 , 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.
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公开(公告)号：US11876680B2
公开(公告)日：2024-01-16
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
CPC classification number: 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. A first forwarding device obtains identification information of a first service flow; and determines, 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. 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.
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公开(公告)号：US11831547B2
公开(公告)日：2023-11-28
申请号：US17319379
申请日：2021-05-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Shuying Liu
Abstract: A BIERv6 packet forwarding method, device, and system. The method includes: receiving, by a first network device, a BIERv6 packet, where the first network device is a BFR or a BFER; determining, by the first network device, whether a value of a hop limit field in the BIERv6 packet is less than or equal to a preset threshold of the first network device, where the preset threshold is a value greater than or equal to 2, and is determined based on a quantity of one or more consecutive second network devices connected to the first network device, and the second network device is a device that does not support BIER forwarding; and when the value of the hop limit field in the BIERv6 packet is less than or equal to the preset threshold, avoiding, by the first network device, forwarding the BIERv6 packet.
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公开(公告)号：US11784919B2
公开(公告)日：2023-10-10
申请号：US17514885
申请日：2021-10-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lingshuai Li , Jingrong Xie
Abstract: A method for sending a BIERv6 (bit index explicit replication version 6) packet includes: determining, by a first network device, that an active next-hop device for reaching a second network device is faulty, where the first network device belongs to a first area in a BIER domain, the second network device and the active next-hop device belong to a second area in the BIER domain, the active next-hop device is a border device in the second area and is configured to connect to the first area, and the first area and the second area have different protocols; and sending, by the first network device, a BIERv6 packet to a backup next-hop device for reaching the second network device, where the backup next-hop device is a border device in the second area and is configured to connect to the first area.
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Patent Agency Ranking
公开(公告)号：US20230283554A1
公开(公告)日：2023-09-07
申请号：US18315166
申请日：2023-05-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuesong Geng , Zhenbin Li , Jingrong Xie , Shuying Liu
IPC: H04L45/741 , H04L45/745 , H04L45/02
CPC classification number: H04L45/741 , H04L45/745 , H04L45/04
Abstract: A first network device receives a BIER packet sent by a second network device, where the BIER packet includes an IPv6 header, a BIER header, and a multicast packet, a destination address of the IPv6 header or a first field of the BIER header carries a service identifier, and the service identifier identifies a virtual private network VPN instance. The first network device determines a VRF table based on the service identifier and a first correspondence, where the first correspondence includes a correspondence between the service identifier and the VRF table. The first network device sends the multicast packet to a first CE device in the VRF table based on the VRF table.
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公开(公告)号：US20230171184A1
公开(公告)日：2023-06-01
申请号：US18154399
申请日：2023-01-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Fanghong Duan , Xuesong Geng
Abstract: This application provides a packet forwarding method, device, and system. The method includes: A first network device obtains a first packet, where the first packet includes a multicast packet; the first network device determines a next-hop destination address DA of the multicast packet based on a source address SA and a first correspondence relationship, where the SA is used to identify a multicast path corresponding to the multicast packet, and the first correspondence relationship includes the SA and a next-hop DA of the first network device on the multicast path; the first network device obtains a second packet based on the next-hop DA, where the second packet is a unicast packet obtained after IPv6 encapsulation is performed on the multicast packet; and the first network device forwards the second packet along the multicast path based on the next-hop DA.
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公开(公告)号：US20210119921A1
公开(公告)日：2021-04-22
申请号：US17135698
申请日：2020-12-28
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jingrong Xie , Yang Xia , Gang Yan , Shunwan Zhuang
IPC: H04L12/803 , H04L12/761 , H04L12/741
Abstract: The method includes: generating, by a first device, a first packet including a BIER header, where the BIER header includes entropy, and the entropy includes a first part and a second part; determining, by the first device based on the first packet, that there are a plurality of forwarding entries used to forward the first packet; selecting, by the first device, one forwarding entry from the plurality of forwarding entries based on the first part, where the selected forwarding entry includes an address of a second device, and the second device is a next-hop device of the first device; and sending, by the first device, the first packet to the second device, where the second part is used by the second device to select, from a plurality of forwarding entries used to forward the first packet, a forwarding entry used by the second device to forward the first packet.
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公开(公告)号：US20250141787A1
公开(公告)日：2025-05-01
申请号：US19007998
申请日：2025-01-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinjun Chen , Haibo Wang , Jingrong Xie , Jie Dong , Min Zhou
Abstract: A route advertisement method, where a second communication apparatus sends a BGP message to a third communication apparatus. The BGP message includes a first routing prefix, a first next-hop address, and a first color attribute. An address segment of the first routing prefix is a first address segment of the second communication apparatus, and the first color attribute indicates a first service intent. The second communication apparatus may further advertise a first SRv6 service route to a first communication apparatus. The first SRv6 service route includes a first SRv6 SID which is an address in the first address segment. The second communication apparatus and the first communication apparatus belong to different domains.
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公开(公告)号：US12199862B2
公开(公告)日：2025-01-14
申请号：US18476354
申请日：2023-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fanghong Duan , Jingrong Xie
IPC: G06F15/173 , H04L45/00 , H04L45/02 , H04L45/748
Abstract: The present disclosure provides a bit index explicit replication over internet protocol version 6 (BIERv6) packet processing method, and the method is applied to an Ethernet virtual private network (EVPN). The method includes: A first network device receives a BIERv6 packet sent by a second network device. The BIERv6 packet includes an internet protocol version 6 (IPv6) header and a broadcast, unknown unicast, and multicast (BUM) packet, a source address (SA) of the IPv6 header is a IPv6 address, the IPv6 address identifies the second network device, the first network device is an egress device in a BIER domain, and the second network device is an ingress device in the BIER domain. The first network device determines, based on the IPv6 address, a EVPN instance to which the BUM packet belongs. The first network device forwards the BUM packet based on the EVPN instance. The foregoing technical solutions can reduce waste of public network link bandwidth, and improve BUM packet replication efficiency.
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