公开(公告)号：US20170373968A1

公开(公告)日：2017-12-28

申请号：US15698197

申请日：2017-09-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenbin LI

IPC: H04L12/723 ,  H04L12/24 ,  H04L12/721 ,  H04L12/751 ,  H04L12/911

CPC classification number: H04L45/50 ,  H04L41/0654 ,  H04L45/02 ,  H04L45/36 ,  H04L47/825 ,  H04L47/828

Abstract: Embodiments of the present invention provide a Multiprotocol Label Switching traffic engineering tunnel establishing method and device. A tunnel establishing method includes: receiving, by a second routing device, an identifier, which is sent by a first routing device, of an MPLS TE tunnel from a first VPN instance to a second VPN instance; acquiring, by the second routing device according to the identifier, path information of the MPLS TE tunnel from the first VPN instance to the second VPN instance; and establishing an MPLS TE tunnel from the second VPN instance to the first VPN instance according to the acquired path information. Therefore, forward and reverse bidirectional tunnels are co-routed or partially co-routed, thereby solving a problem caused by non-co-routing during BFD.

公开(公告)号：US20170134308A1

公开(公告)日：2017-05-11

申请号：US15412890

申请日：2017-01-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan ZHUANG ,  Zhenbin LI ,  Baohua SONG ,  Yuanbin YIN ,  Guoyi CHEN

IPC: H04L12/947 ,  H04L29/08 ,  H04L12/46

Abstract: A Border Gateway Protocol Monitoring Protocol (BMP) module sends to a Border Gateway Protocol (BGP) module a request for acquiring a capability information set; the BGP module traverses BGP capability data stored in the BGP module to acquire all BGP capability data configured in the network device and sends all the BGP capability to the BMP module; and the BMP module sends to the monitoring server an initial capability information set message carrying all the BGP capability data and a device identifier of the network device. By means of capability extension of a network device, the network device can acquire, through interaction between a BGP module and a BMP module, all BGP capabilities configured in the network device and send all the BGP capabilities to a monitoring server, so that the monitoring server can fully understand actual capability supported by the entire network, further providing an effective basis for deployment of and decision on the entire network.

公开(公告)号：US20240056383A1

公开(公告)日：2024-02-15

申请号：US18495897

申请日：2023-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong GENG ,  Zhenbin LI ,  Jingrong XIE

IPC: H04L45/17 ,  H04L45/00 ,  H04L45/74

CPC classification number: H04L45/17 ,  H04L45/566 ,  H04L45/74

Abstract: This application provides a packet transmission method, apparatus, and device. For example, the method is performed by an ingress node. The ingress node obtains a second packet by using first node information carried in a first packet, where the first node information includes a first bit string indicating N next-hop devices of the ingress node and first reference information used for indexing second node information corresponding to a first intermediate node in the N next-hop devices, and the second packet includes a first identifier determined based on the first reference information. The ingress node sends the second packet to the first intermediate node. Because structures of the first bit string and the first reference information are used, a packet encoding manner is simple, so that packet transmission efficiency is improved.

公开(公告)号：US20230336478A1

公开(公告)日：2023-10-19

申请号：US18338194

申请日：2023-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong GENG ,  Zhenbin LI ,  Jingrong XIE

IPC: H04L45/74 ,  H04L45/00

CPC classification number: H04L45/74 ,  H04L45/34

Abstract: A packet transmission method, apparatus, device, and system, and a storage medium are provided. The method includes: A first device obtains a first packet, and determines node information of a second device and node information of a third device from a node information list of the first packet by using a first part included in a destination address field of the first packet. The first device generates, based on the first packet, a second packet including the node information of the second device and a third packet including the node information of the third device. The first device sends the second packet to the second device, and sends the third packet to the third device.

公开(公告)号：US20210409315A1

公开(公告)日：2021-12-30

申请号：US17471409

申请日：2021-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuping PENG ,  Cheng LI ,  Xuesong GENG ,  Zhenbin LI ,  Lei LI

IPC: H04L12/725 ,  H04L12/741

Abstract: An ingress node obtains a packet, and feature information of an application program corresponding to the packet. The feature information of the application program includes at least one of the following information: identification information and network performance requirement information of the application program. The identification information is used to identify the application program. The ingress node determines the path between the ingress node and the egress node based on the feature information of the application program and a mapping relationship between the feature information of the application program and the path between the ingress node and the egress node. The ingress mode forwards the packet through the path between the ingress node and the egress node.

公开(公告)号：US20210250295A1

公开(公告)日：2021-08-12

申请号：US17245633

申请日：2021-04-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunan GU ,  Shunwan ZHUANG ,  Zhenbin LI

IPC: H04L12/741 ,  H04L12/813

Abstract: This application provides a route event record entry processing method, a network device, and a control device. The method includes: obtaining, by a network device, first information and second information that correspond to a route prefix, where the first information is used to indicate information about a first route policy for the route prefix, and the second information is used to indicate attribute information obtained after processing the route prefix by using the first route policy; and generating, by the network device, a route event record entry for the route prefix based on the first information and the second information, where the route event record entry includes the route prefix, the first information, and the second information.

公开(公告)号：US20210234797A1

公开(公告)日：2021-07-29

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: H04L12/741 ,  H04L12/721 ,  H04L29/06 ,  H04L12/751

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：US20210203591A1

公开(公告)日：2021-07-01

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

Abstract: Embodiments of this application disclose 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：US20200280514A1

公开(公告)日：2020-09-03

申请号：US16878428

申请日：2020-05-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junlin ZHANG ,  Zhenbin LI

IPC: H04L12/723 ,  H04L12/66 ,  H04L12/64 ,  H04L12/741 ,  H04L12/931 ,  H04L29/12 ,  H04L29/08

Abstract: The present application discloses a packet forwarding method, including: determining, by an Ingress PE in an Ethernet virtual private network instance (EVI), that a state of the EVI on a first Egress PE is Active, where an Ethernet virtual private network (EVPN) corresponding to the EVI includes a first CE; determining, by the Ingress PE, that a state of the EVI on a second Egress PE is Inactive; skipping, by the Ingress PE, forwarding a broadcast, unknown unicast, and multicast BUM packet to the second Egress PE, where the BUM packet is from the first CE; and forwarding, by the Ingress PE, the BUM packet to the first Egress PE. Repeated BUM traffic that is transmitted in a bearer network and is not finally sent to a remote site is reduced; therefore, a waste of bandwidth in the bearer network is reduced.

公开(公告)号：US20190140949A1

公开(公告)日：2019-05-09

申请号：US16221568

申请日：2018-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Nan WU ,  Shunwan ZHUANG ,  Hui NI ,  Zhenbin LI ,  Xia CHEN

IPC: H04L12/749 ,  H04L12/751 ,  H04L12/24 ,  H04L12/717

Abstract: Embodiments of the present invention disclose a path determining method, apparatus, and system. In a hybrid network including one controller for implementing a control function, the controller may separately obtain network topology information of a first network and a second network of different network types by using a same control channel protocol. When the controller obtains a path determining requirement for the data transmission path, because the controller has the network topology information of the first network and the second network, during computation of the data transmission path, the controller can determine a path computation result including transmission path parts of the first network and the second network, without performing additional information exchange with another device, and send the path computation result to the first network device. In this way, planning efficiency of the data transmission path is improved.