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公开(公告)号：US20220200820A1
公开(公告)日：2022-06-23
申请号：US17695488
申请日：2022-03-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingrong Xie , Yisong Liu , Yang Xia
Abstract: A packet sending method includes that a first network device receives a first packet from a customer edge (CE) device, where the first packet includes a first Internet Protocol (IP) version 6 (IPv6) header and a first payload, and the first IPv6 header includes a source address (SA) and a destination address (DA); determines, according to an entry, an address identifier corresponding to the SA and the DA, where the entry includes a correspondence between the SA and the DA and the address identifier; updates the first IPv6 header in the first packet to a second IPv6 header to obtain a second packet; encapsulates the second packet using the address identifier to obtain an encapsulated packet, the address identifier is located at an outer layer of the second packet; and sends the encapsulated packet to a second network device.
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公开(公告)号：US20220109623A1
公开(公告)日：2022-04-07
申请号：US17542505
申请日：2021-12-06
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Jingrong Xie , Yang Xia , Yisong Liu
IPC: H04L45/16 , H04L45/745 , H04L45/24 , H04L45/00
Abstract: This application provides a BIER packet sending method. The method includes: receiving a BIER packet that is encapsulated using an IPv6 protocol and that is sent by a second forwarding device, where the BIER packet includes an IPv6 basic header and a BIER header, a destination address field in the IPv6 basic header is a first IPv6 address of the first forwarding device; determining, based on an identifier corresponding to a first IPv6 address in a forwarding table, to perform BIER forwarding on the BIER packet, where the identifier is used to indicate that the first IPv6 address is a destination address for BIER forwarding. In the technical solution provided in this application, a node may determine, based on the identifier of the first IPv6 address, to perform BIER forwarding on the BIER packet.
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公开(公告)号：US20250071056A1
公开(公告)日：2025-02-27
申请号：US18942012
申请日：2024-11-08
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application discloses a packet processing method including: receiving a first packet that includes a DA field and an SRH, where the DA field includes at least one C-SID that is sequentially arranged; determining, depending on whether another C-SID is further included after a first C-SID corresponding to the first node in the at least one C-SID, whether a first processing flavor corresponding to the first C-SID indicates a movement operation or a replacement operation; and if the first processing flavor indicates a movement operation, moving a target field that is after the first C-SID and that is in the DA field, to enable the target field to cover the first C-SID in the DA field; or if the first processing flavor indicates a replacement operation, replacing the first C-SID in the DA field with a second C-SID in the SRH.
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公开(公告)号：US11991012B2
公开(公告)日：2024-05-21
申请号：US17241464
申请日：2021-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Yang Xia
IPC: H04L12/741 , H04L12/18 , H04L12/46 , H04L45/74 , H04L67/56
CPC classification number: H04L12/18 , H04L12/4633 , H04L12/4641 , H04L45/74 , H04L67/56
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.
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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.
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Patent Agency Ranking
公开(公告)号：US11627084B2
公开(公告)日：2023-04-11
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: H04L47/125 , H04L45/16 , H04L45/74
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：US11949585B2
公开(公告)日：2024-04-02
申请号：US17542505
申请日：2021-12-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Yang Xia , Yisong Liu
IPC: G06F15/173 , H04L45/00 , H04L45/16 , H04L45/24 , H04L45/745
CPC classification number: H04L45/16 , H04L45/24 , H04L45/34 , H04L45/745
Abstract: This application provides a BIER packet sending method. The method includes: receiving a BIER packet that is encapsulated using an IPv6 protocol and that is sent by a second forwarding device, where the BIER packet includes an IPv6 basic header and a BIER header, a destination address field in the IPv6 basic header is a first IPv6 address of the first forwarding device; determining, based on an identifier corresponding to a first IPv6 address in a forwarding table, to perform BIER forwarding on the BIER packet, where the identifier is used to indicate that the first IPv6 address is a destination address for BIER forwarding. In the technical solution provided in this application, a node may determine, based on the identifier of the first IPv6 address, to perform BIER forwarding on the BIER packet.
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公开(公告)号：US11924099B2
公开(公告)日：2024-03-05
申请号：US17171429
申请日：2021-02-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Cheng Li , Zhenbin Li , Yang Xia , Taixu Tian
CPC classification number: H04L45/74 , H04L45/34 , H04L45/50 , H04L2212/00
Abstract: A segment routing device receives a first packet from a first network. A first packet header of the first packet includes a segment list. The segment list includes a plurality of sequentially arranged identifiers. The identifiers include a first-type identifier and a plurality of second-type identifiers. Network devices or links identified by the first-type identifier and the second-type identifier are respectively on the first network and a second network. A type of the first network is different from a type of the second network. The segment routing device encapsulates a second packet header for the first packet to form a second packet. The second packet header includes the plurality of second-type identifiers. The segment routing device sends the second packet to the second network.
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19.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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