公开(公告)号：US11997016B2

公开(公告)日：2024-05-28

申请号：US17746199

申请日：2022-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Chang Wang ,  Nan Wu ,  Zhenbin Li ,  Hui Ni

IPC: H04L45/02 ,  H04L45/00 ,  H04L45/745 ,  H04L45/748

CPC classification number: H04L45/745 ,  H04L45/04 ,  H04L45/26 ,  H04L45/54 ,  H04L45/748

Abstract: Embodiments of the present disclosure provide a routing control method, network device, and controller. The method may include the network device obtaining a route suppression request. The method may also include determining the second routing entry. Furthermore, the method may include setting a state of the second routing entry to a non-delivery state that is used to indicate that the second routing entry does not need to be delivered to a forwarding table. In the method, the network device may have a first routing entry and a second routing entry, an address prefix of the first routing entry is a first address prefix, an address prefix of the second routing entry is a second address prefix, a network segment to which the second address prefix belongs is a subset of a network segment to which the first address prefix belongs, and a mask in the second address prefix is greater than a mask in the first address prefix.

公开(公告)号：US11979322B2

公开(公告)日：2024-05-07

申请号：US17527555

申请日：2021-11-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shuping Peng ,  Zhenbin Li

IPC: H04L45/741 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L45/741 ,  H04L45/34 ,  H04L45/50

Abstract: A method for providing a service for a traffic flow includes a network device receives a first packet; and when a packet feature of the first packet matches a packet feature of the traffic flow, the network device encapsulates an indication identifier of the traffic flow into the first packet to obtain a second packet, and sends the second packet. The second packet is an Internet Protocol (IP) version 6 (IPv6) packet or a Multiprotocol Label Switching MPLS packet. The indication identifier indicates the service provided for the traffic flow.

公开(公告)号：US11888651B2

公开(公告)日：2024-01-30

申请号：US17851772

申请日：2022-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Haijun Xu ,  Haibo Wang ,  Zhenbin Li ,  Jia Che ,  Shuanglong Chen

IPC: H04L12/46 ,  H04L45/74 ,  H04L45/50 ,  H04L45/00 ,  H04L45/02

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/04 ,  H04L45/38 ,  H04L45/50 ,  H04L45/74

Abstract: A first network device includes a processor and a memory having instructions stored thereon that, when executed by the processor, cause the first network device to: obtain a first virtual private network (VPN) route sent by a second network device. The first VPN route includes first identification information that uniquely identifies a first VPN instance in the second network device. The first network device is also caused to generate a second VPN route according to a second VPN instance accessing a third network device and the first VPN route. The second VPN route carries second identification information and routing information of the first VPN route. The second identification information uniquely identifies the second VPN instance in the third network device. The first identification information is different from the second identification information. The first network device is further caused to send the second VPN route to the third network device.

公开(公告)号：US11799774B2

公开(公告)日：2023-10-24

申请号：US17215710

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Yunan Gu ,  Haibo Wang ,  Gang Yan ,  Zhenbin Li

IPC: H04L45/74 ,  H04L45/02 ,  H04L45/00 ,  H04L69/22 ,  H04L67/01

CPC classification number: H04L45/74 ,  H04L45/02 ,  H04L45/70 ,  H04L67/01 ,  H04L69/22

Abstract: This disclosure discloses a method, device, and system for determining a route leak. The method includes: receiving, by a network monitoring device managing a first autonomous system, an extended BMP packet sent by a first border node of the first autonomous system and an extended BMP packet sent by a second border node of the first autonomous system. The method includes determining, based on the extended BMP packet sent by the first border node and the extended BMP packet sent by the second border node of the first autonomous system, a receiving relationship of a route prefix received by the first border node from the second autonomous system, and a sending relationship of the route prefix sent by the second border node to a third autonomous system. The method further includes determining, based on the receiving relationship and the sending relationship, whether the route prefix is leaked.

公开(公告)号：US20230179523A1

公开(公告)日：2023-06-08

申请号：US18156175

申请日：2023-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hong Wu ,  Jianbo Zhu ,  Ruiqing Cao ,  Zhenbin Li

IPC: H04L47/12

CPC classification number: H04L47/12

Abstract: A packet processing method and apparatus, and a related device, the method including generating, by a first device, a flow filtering rule, where the flow filtering rule includes a match item and an action item, and where the match item comprises an Internet Protocol (IP) address and an autonomous domain identifier, and sending, by the first device, the flow filtering rule to a second device, where the action item is used to instruct the second device to process, based on a packet processing mode indicated by the action item, a packet matching the match item.

公开(公告)号：US11558282B2

公开(公告)日：2023-01-17

申请号：US17068457

申请日：2020-10-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huaimo Chen ,  Zhenbin Li

IPC: H04L45/12 ,  H04L45/00 ,  H04L45/02

Abstract: A method, performed by a network node, for enabling Interior Gateway Protocol (IGP) fast convergence, the method includes determining that there is a significant change in link state information, the significant change is at least one of a link down, a link up, and a link metric change. The method further includes originating a link state packet comprising a flag that is set to indicate the significant change in the link state information; and distributing the link state packet.

公开(公告)号：US20220368610A1

公开(公告)日：2022-11-17

申请号：US17825759

申请日：2022-05-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Hui Ni ,  Nan Wu

IPC: H04L43/02 ,  H04L43/026 ,  H04L43/062 ,  H04L45/00

Abstract: A control method for collecting traffic statistics includes a control node obtains a statistics collection instruction, where the statistics collection instruction is used to instruct to collect traffic statistics of a target data flow, generates a traffic statistics collection policy according to the statistics collection instruction, where the traffic statistics collection policy includes a matching identifier of the target data flow, a first command, and a second command, and sends the traffic statistics collection policy to a forwarding node. The first command is used to instruct the forwarding node to set a traffic identifier for the target data flow based on the matching identifier, the second command is used to instruct the forwarding node to add traffic generated by a target packet to a traffic statistics collection result corresponding to the traffic identifier which is used to describe the traffic of the target data flow.

公开(公告)号：US11489759B2

公开(公告)日：2022-11-01

申请号：US17205167

申请日：2021-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunan Gu ,  Shunwan Zhuang ,  Gang Yan ,  Zhenbin Li

IPC: H04L12/733 ,  H04L12/717 ,  H04L12/721 ,  H04L12/26 ,  H04L45/12 ,  H04L43/0817 ,  H04L45/42

Abstract: Embodiments of this application provide a method for determining route flapping information, to determine route flapping information based on parameter information reported by a routing device. The method in the embodiments of this application includes the following steps: receiving parameter information sent by each of at least one routing device, where parameter information sent by any routing device includes at least one of protocol packet information, count information, and identity identification information of the any routing device; and determining route flapping information of a target routing device based on the parameter information sent by each of the at least one routing device, where the target routing device is one of the at least one routing device.

公开(公告)号：US20220329512A1

公开(公告)日：2022-10-13

申请号：US17852714

申请日：2022-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Yunan Gu ,  Gang Yan ,  Zhenbin Li

IPC: H04L45/02 ,  H04L45/00

Abstract: A method for updating route information includes a monitored network element establishes a Border Gateway Protocol (BGP) Monitoring Protocol (BMP) connection to a monitoring network element, and sends a first message to the monitoring network element when detecting a synchronization requirement of BGP route information, where the first message instructs the monitoring network element to update a BGP route information set, and the BGP route information set includes at least one piece of BGP route information. The first message indicates an update set, and the update set updates the BGP route information set.

公开(公告)号：US11463905B2

公开(公告)日：2022-10-04

申请号：US17100656

申请日：2020-11-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haoyu Song ,  Tianran Zhou ,  Min Liu ,  Zhenbin Li

IPC: H04L29/06 ,  H04W28/02 ,  H04L69/22

Abstract: A mechanism for adaptively performing in-band network telemetry (INT) by a network controller is disclosed. The mechanism includes receiving one or more congestion indicators from a collector. An adjusted sampling rate is generated. The adjusted sampling rate is a specified rate of insertion of instruction headers for INT and is generated based on the congestion indicators. The adjusted sampling rate is transmitted to a head node, which is configured to perform INT via instruction header insertion into user packets.