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公开(公告)号：US12184536B2
公开(公告)日：2024-12-31
申请号：US17743905
申请日：2022-05-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie
IPC: H04L12/18 , H04L45/00 , H04L45/12 , H04L45/16 , H04L45/24 , H04L45/28 , H04L45/74 , H04L47/10 , H04L47/80 , H04L69/14 , H04L69/40
Abstract: A packet forwarding method includes that a first network device receives a multicast packet from a multicast source device and forwarded by a device group, where the device group includes a second network device and a third network device, and the multicast packet is forwarded to the first network device by one network device in the device group. The first network device determines, according to a reverse-path forwarding (RPF) entry, that the multicast packet is forwarded by the device group, where the RPF entry includes a first sub-entry instructing the first network device to forward the multicast packet sent by the second network device and a second sub-entry instructing the first network device to forward the multicast packet sent by the third network device. The first network device sends the multicast packet to a multicast destination device according to the RPF entry.
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公开(公告)号：US12170618B2
公开(公告)日：2024-12-17
申请号：US17849113
申请日：2022-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Zhenbin Li , Gang Yan
Abstract: This application provides a packet sending method. The method includes: receiving, by a first network device, a data packet, and encapsulating the data packet to obtain a first packet, where the first packet includes an IPv6 header, a bit index explicit replication BIER header, and the data packet, and some bits of a source IPv6 address field in the IPv6 header include identification information of a first tenant; and sending, by the first network device, the first packet to a second network device, where the identification information of the first tenant is used by the second network device to determine to send the data packet to an interface, corresponding to the first tenant, of the second network device.
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公开(公告)号：US11997004B2
公开(公告)日：2024-05-28
申请号：US17701180
申请日：2022-03-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yang Xia , Yisong Liu , Liangge Li
CPC classification number: H04L45/16 , H04L12/4633 , H04L45/50 , H04L45/70 , H04L45/72
Abstract: A reverse path forwarding (RPF) check method includes, after receiving a multicast data packet from a head node, a tail node may obtain a multicast source address, a multicast group address and encapsulation information that are carried in the multicast data packet. The tail node obtains, based on the multicast source address, the multicast group address, and a first correspondence, a first identifier identifying an upstream multicast hop (UMH) node corresponding to the multicast data packet. The tail node may further obtain, based on the encapsulation information of the multicast data packet and a second correspondence, a second identifier identifying the head node corresponding to the multicast data packet. After obtaining the first identifier and the second identifier, the tail node may perform an RPF check based on the first identifier and the second identifier.
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公开(公告)号：US11870681B2
公开(公告)日：2024-01-09
申请号：US18061161
申请日：2022-12-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shuying Liu , Jingrong Xie , Feng Zhang , Rui Gu
IPC: G06F15/16 , H04L45/16 , H04L12/18 , H04L45/00 , H04L43/026
CPC classification number: H04L45/16 , H04L12/1845 , H04L43/026 , H04L45/34
Abstract: This application provides a BIER multicast traffic statistics collection method, a device, and a system. The method includes: A first network device obtains a first BIER packet. The first network device performs traffic statistics collection on the first BIER packet based on multicast flow information, to obtain a traffic statistics collection result of the first BIER packet, where the multicast flow information is used to identify a multicast flow to which the first BIER packet belongs. The first network device sends the multicast flow information and the traffic statistics collection result of the first BIER packet to a controller.
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公开(公告)号：US11848858B2
公开(公告)日：2023-12-19
申请号：US17708233
申请日：2022-03-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Naiwen Wei , Gang Yan , Jiajia Dong
IPC: H04L45/12 , H04L45/00 , H04L45/50 , H04L45/741
CPC classification number: H04L45/127 , H04L45/20 , H04L45/507 , H04L45/741
Abstract: A bit index explicit replication (BIER) forwarding entry construction method is provided. The method includes receiving, by a second network device, a first message sent by a first network device, where the first message includes a host routing prefix of the first network device, first BIER information, and second BIER information. The first BIER information includes a bit index forwarding table identifier (BIFT ID) of the first network device, the second BIER information includes a bit forwarding router identifier (BFR ID) of at least one bit forwarding router (BFR) in a first area. The second network device constructs a BIER forwarding entry based on the first BIER information, the second BIER information, and the host routing prefix.
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Patent Agency Ranking
公开(公告)号：US20230318966A1
公开(公告)日：2023-10-05
申请号：US18327563
申请日：2023-06-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanghong Duan , Jingrong Xie , Zhidan Zhu
IPC: H04L45/16 , H04L12/46 , H04L45/741
CPC classification number: H04L45/16 , H04L12/4641 , H04L45/741 , H04L2212/00
Abstract: This application provides a packet transmission method, a correspondence obtaining method, and an apparatus and a system that are related to the foregoing method. For the packet transmission method, a first PE receives a first BIER packet sent by a first CE, determines, based on the received first BIER packet, a first VPN to which the first CE belongs, and transmits the first BIER packet based on the first VPN.
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公开(公告)号：US20230308386A1
公开(公告)日：2023-09-28
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 , H04L45/748 , H04L45/655
CPC classification number: H04L45/42 , H04L45/748 , H04L45/655
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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公开(公告)号：US20230269165A1
公开(公告)日：2023-08-24
申请号：US18309532
申请日：2023-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Heng Wang , Fanghong Duan , Gang Yan
Abstract: Embodiments of this application provide a next hop determining method. The method is applied to a BIER domain based on bit index forwarding routing, and includes: A third device obtains first BIER information of a first device, an attribute of the first device, second BIER information of a second device, and an attribute of the second device, where the first BIER information includes a bit forwarding router identifier BFR-id of an edge bit forwarding router BFR in a sub-domain, and the second BIER information includes the BFR-id of the edge BFR in the sub-domain. The third device determines, based on the first BIER information, the second BIER information, the attribute of the first device, and the attribute of the second device, a next hop to the edge BFR in the sub-domain.
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公开(公告)号：US20230269151A1
公开(公告)日：2023-08-24
申请号：US18309543
申请日：2023-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yali Wang , Tianran Zhou , Jingrong Xie
IPC: H04L43/08 , H04L45/741
CPC classification number: H04L43/08 , H04L45/741 , H04L12/4633
Abstract: Embodiments of this application provide a performance measurement method and apparatus, and a system. In the method, a bit forwarding ingress router BFIR obtains a first packet, where the first packet includes an identifier of the BFIR, a bit string, and a first parameter that is used for performance measurement, the bit string is used to identify one or more bit forwarding egress routers BFERs, and the first packet is not used to transmit multicast data; and the BFIR sends the first packet to the one or more BFERs based on the bit string included in the first packet.
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公开(公告)号：US20230096867A1
公开(公告)日：2023-03-30
申请号：US18061161
申请日：2022-12-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shuying Liu , Jingrong Xie , Feng Zhang , Rui Gu
Abstract: This application provides a BIER multicast traffic statistics collection method, a device, and a system. The method includes: A first network device obtains a first BIER packet. The first network device performs traffic statistics collection on the first BIER packet based on multicast flow information, to obtain a traffic statistics collection result of the first BIER packet, where the multicast flow information is used to identify a multicast flow to which the first BIER packet belongs. The first network device sends the multicast flow information and the traffic statistics collection result of the first BIER packet to a controller.
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