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公开(公告)号：US20230283545A1
公开(公告)日：2023-09-07
申请号：US18314665
申请日：2023-05-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ka Zhang , Zhibo Hu , Sheng Fang , Ren Tan , Hanlin Li
IPC: H04L45/00
CPC classification number: H04L45/566
Abstract: A method for obtaining path association information, a device, and a system are provided, and belong to the field of network technologies. A first network device generates a packet carrying template indication information, and sends the packet to a second network device. After receiving the packet, the second network device determines, based on the template indication information carried in the packet, a target template associated with a target forwarding path, and performs, based on the target template, an operation associated with the target forwarding path. In this way, the first network device may include template indication information corresponding to different templates in a packet, to indicate different receiving network devices to determine a target template associated with a target forwarding path, and determine, based on the target template, association information such as a path attribute or a path constraint associated with the target forwarding path. The path association information is advertised in a manner of carrying the template indication information provided in this method, so that flexibility of obtaining the path association information can be improved without affecting protocol stability.
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公开(公告)号：US11652735B2
公开(公告)日：2023-05-16
申请号：US17549202
申请日：2021-12-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Sheng Fang
CPC classification number: H04L45/16 , H04L12/1877 , H04L45/24 , H04L45/48 , H04L45/507
Abstract: A multicast data packet processing method performed by an intermediate node of a multicast tree includes: receiving a first Bit Index Explicit Replication (BIER) packet including a first label; obtaining, according to the first label, a second label corresponding to a multicast tree including the intermediate node; and obtaining a second BIER packet according to the second label and the first BIER packet, and sending the second BIER packet which includes the second label.
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公开(公告)号：US20230086279A1
公开(公告)日：2023-03-23
申请号：US17993571
申请日：2022-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ka Zhang , Chen Zhang , Zhibo Hu , Sheng Fang , Zuliang Wang
Abstract: A binding segment identifier processing method and a device are provided. The method includes a network device receives a message sent by a controller, where the message includes type information and a segment identifier, and the type information indicates that the segment identifier is a binding segment identifier BSID. The network device performs a processing action on the BSID based on the type information. According to embodiments of this application, the network device can identify the BSID, to resolve a technical problem that an incorrect processing result is caused when a segment identifier list of the network device includes the BSID.
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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：US11233724B2
公开(公告)日：2022-01-25
申请号：US17009640
申请日：2020-09-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingrong Xie , Sheng Fang
IPC: G06F15/16 , H04L12/761 , H04L12/707 , H04L12/753 , H04L12/723 , H04L12/18
Abstract: A multicast data packet processing method in a point-to-multipoint (P2MP)-based bit index explicit replication (BIER) multicast tree, which includes an intermediate node configured to use P2MP to forward a BIER packet, includes receiving a first multicast data packet with a BIER header having a first label. The method further includes obtaining a first forwarding entry based on the first label. The first forwarding entry includes the first label, a first identifier identifying the multicast tree, and a second identifier instructing to perform P2MP forwarding. The method further includes obtaining, based on the first identifier, a second forwarding entry including the first identifier and a second label. The method further includes obtaining a second multicast data packet based on the second identifier, the second forwarding entry, and the first multicast data packet, and sending the second multicast data packet. The second multicast data packet includes the second label.
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Patent Agency Ranking
公开(公告)号：US12184541B2
公开(公告)日：2024-12-31
申请号：US18187515
申请日：2023-03-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kaiqiang Shen , Sheng Fang , Ruyun Zhang , Ren Tan , Hanlin Li
IPC: H04L45/42 , H04L45/24 , H04L45/741
Abstract: A service processing method includes that a first network device determines a second network device on a forwarding path of a packet based on a service requirement; the first network device sends a first message to the second network device, to establish a first connection to the second network device; and the first network device sends a second message to the second network device using the first connection, where the second message requests the second network device to assist in determining information related to the forwarding path. when determining the second network device is needed to assist the first network device for information related to the forwarding path of the packet, the first network device actively establishes a connection to the second network device, and requests, using the established connection, the second network device to assist the first network device in determining the information related to the forwarding path.
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公开(公告)号：US20240348546A1
公开(公告)日：2024-10-17
申请号：US18750905
申请日：2024-06-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Sheng Fang , Zhenxing Wang , Dapeng Chen , Shuping Peng
IPC: H04L45/745 , H04L45/00 , H04L45/741
CPC classification number: H04L45/745 , H04L45/34 , H04L45/741
Abstract: A packet processing method and apparatus, and a communication system are provided, and belong to the field of communication technologies. The method includes: After receiving an IPv6 packet including a first DOH, an intermediate node parses the first DOH based on a first policy, to obtain first information carried in the first DOH, and processes the IPv6 packet based on the first information. The IPv6 packet includes an RH and the first DOH is located after the RH, or the IPv6 packet does not include an RH. In this application, an intermediate node that performs parsing to obtain information carried in an IPv6 extension header may be flexibly specified, to resolve a problem that a parsing rule of an extension header of an existing IPv6 packet is not flexible enough. This application is used for packet processing.
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18.发明公开公开(公告)号：US20240223504A1
公开(公告)日：2024-07-04
申请号：US18606443
申请日：2024-03-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shuping Peng , Sheng Fang , Shunwan Zhuang , Haibo Wang , Zhenbin Li
IPC: H04L47/2425
CPC classification number: H04L47/2425
Abstract: A method, in which a first network device obtains a first service packet and a plurality of flow specification FlowSpec rule groups, where any FlowSpec rule group in the plurality of FlowSpec rule groups indicates a rule set for processing a service packet, and different FlowSpec rule groups correspond to different priorities. The first network device determines a target FlowSpec rule group, where the target FlowSpec rule group is a FlowSpec rule group in the plurality of FlowSpec rule groups that successfully matches the first service packet and that has the highest priority. The first network device processes the first service packet according to the target FlowSpec rule group. A service packet is processed according to a FlowSpec rule group, so that processing efficiency can be improved.
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公开(公告)号：US20230283544A1
公开(公告)日：2023-09-07
申请号：US18187515
申请日：2023-03-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kaiqiang Shen , Sheng Fang , Ruyun Zhang , Ren Tan , Hanlin Li
IPC: H04L45/42 , H04L45/24 , H04L45/741
CPC classification number: H04L45/42 , H04L45/24 , H04L45/741
Abstract: A service processing method includes that a first network device determines a second network device on a forwarding path of a packet based on a service requirement; the first network device sends a first message to the second network device, to establish a first connection to the second network device; and the first network device sends a second message to the second network device using the first connection, where the second message requests the second network device to assist in determining information related to the forwarding path. when determining the second network device is needed to assist the first network device for information related to the forwarding path of the packet, the first network device actively establishes a connection to the second network device, and requests, using the established connection, the second network device to assist the first network device in determining the information related to the forwarding path.
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公开(公告)号：US20230224241A1
公开(公告)日：2023-07-13
申请号：US18185818
申请日：2023-03-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kaiqiang Shen , Yangyang Jia , Sheng Fang
CPC classification number: H04L45/26 , H04L45/507 , H04L45/28 , H04L45/22
Abstract: A path identity allocation method, system, and apparatus, a device, and a storage medium are provided, and belong to the field of communication technologies. According to the method, a forwarding node on a path receives a PCEP packet, so that when determining that path identification information of the path is unavailable, the forwarding node performs, based on indication information in the PCEP packet, an operation associated with the path identification information, for example, determines, based on indicated content, that the forwarding node reallocates a path identity, or requests the control node to reallocate a path identity.
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