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公开(公告)号：US20230308383A1
公开(公告)日：2023-09-28
申请号：US18324427
申请日：2023-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibo Wang , Shunwan Zhuang , Gang Yan
IPC: H04L45/02
CPC classification number: H04L45/04
Abstract: A message sending method includes a first network device that obtains an identifier of a first autonomous system (AS), where the first AS is adjacent to a second AS, and the first network device belongs to the second AS. The first network device sends a first message to a second network device, where the first message carries the identifier of the first AS, and the second network device belongs to the second AS or a third AS.
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公开(公告)号：US20230116548A1
公开(公告)日：2023-04-13
申请号：US18066625
申请日：2022-12-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Weiguo Hao , Haibo Wang , Xingjian He , Gang Yan , Liangchuan Gao
Abstract: A first network device obtains first information. The first information indicates that a first link is faulty, and the first link is a link between any two network devices in a network system to which the first network device belongs. The first network device sends the first information to a second network device by using BGP, for example, sends a link fault message to the second network device by using BGP. The link fault message carries the first information. The second network device is a neighbor device of the first network device. The first network device determines an unreachable route in a routing table of the first network device based on the first information and a topology of the network system. A path corresponding to the unreachable route includes the first link. The first network device marks the unreachable route as invalid.
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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：US20220360525A1
公开(公告)日：2022-11-10
申请号：US17870466
申请日：2022-07-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhibo Hu , Sheng Fang , Huizhi Wen , Yaqun Xiao , Gang Yan
Abstract: A packet processing method includes a first network device receiving a first packet, where the first packet includes a plurality of segment identifier (SID) lists, the plurality of SID lists include a primary SID list and at least one secondary SID list. The at least one secondary SID list includes a first secondary SID list, and the first secondary SID list is a backup of the primary SID list. The first network device processes the first packet based on the primary SID list. When a forwarding path indicated by a segment identifier list is faulty, data packet forwarding processing can still be implemented in the segment routing network.
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公开(公告)号：US20220263803A1
公开(公告)日：2022-08-18
申请号：US17732588
申请日：2022-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shunwan Zhuang , Haibo Wang , Yunan Gu , Gang Yan , Zhenbin Li
IPC: H04L9/40
Abstract: An information reporting method includes after receiving a Border Gateway Protocol (BGP) flow specification (FS) rule, a network node obtains a status of implementing the BGP FS rule on the network node, where the status indicates that either the BGP FS rule is implemented on the network node or the BGP FS rule is not implemented on the network node. Then the network node sends the status to a server.
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Patent Agency Ranking
公开(公告)号：US20220173997A1
公开(公告)日：2022-06-02
申请号：US17671695
申请日：2022-02-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibo Wang , Shunwan Zhuang , Gang Yan
Abstract: A route learning method includes a network device obtaining Border Gateway Protocol (BGP) routing information from a BGP peer. When a target region to which the BGP peer belongs is the same as a target region to which a BGP route belongs, the network device learns the BGP routing information. A packet forwarding method includes a network device receiving a packet through a network interface. When a target region to which the network interface belongs is the same as a target region to which the packet belongs, the network device forwards the packet.
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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：US12068887B2
公开(公告)日：2024-08-20
申请号：US17466517
申请日：2021-09-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haibo Wang , Shunwan Zhuang , Gang Yan
CPC classification number: H04L12/4641 , H04L45/74
Abstract: A data transmission method includes sending, by a third network device, a first route to a first network device based on a fact that the first network device is a first-mode neighbor of the third network device or based on a request received from the first network device, and forwarding, by the first network device based on the first route, a packet to be sent to a second user-side device connected to a second network device.
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公开(公告)号：US11936551B2
公开(公告)日：2024-03-19
申请号：US17471571
申请日：2021-09-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shunwan Zhuang , Haibo Wang , Yunan Gu , Gang Yan , Zhenbin Li
IPC: G06F15/16 , H04L45/00 , H04L45/02 , H04L45/021 , H04L45/18
CPC classification number: H04L45/021 , H04L45/04 , H04L45/18 , H04L45/22
Abstract: A BGP route identification method and apparatus are provided. A network device obtains a BGP route. The BGP route includes an autonomous system path attribute AS_PATH attribute, the AS_PATH attribute includes a first autonomous system number AS number, an AS number corresponding to an autonomous system that the network device is located in or manages is a second AS number, and the first AS number is equal to the second AS number. The network device determines, based on the first AS number and the second AS number, whether the BGP route is abnormal.
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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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