公开(公告)号：US10686698B2

公开(公告)日：2020-06-16

申请号：US14981520

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junlin Zhang ,  Zhenbin Li

IPC: H04L29/12 ,  H04L12/723 ,  H04L12/66 ,  H04L12/64 ,  H04L12/741 ,  H04L12/931 ,  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：US20200153834A1

公开(公告)日：2020-05-14

申请号：US16739551

申请日：2020-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Peng Zhou ,  Zhenbin Li ,  Yuanbin Yin ,  Jianbin Xu

IPC: H04L29/06 ,  H04L12/751

Abstract: A method, an apparatus, and a system for collecting an access control list (ACL), where a second network device receives a first link-state advertisement (LSA) packet flooded by a first network device, where the first LSA packet includes a first network device identifier and first ACL information, and the first network device and the second network device belong to a same Interior Gateway Protocol (IGP) area, and sends an extended first Border Gateway Protocol-Link State (BGP-LS) packet to a controller, where the extended first BGP-LS packet includes the first network device identifier and the first ACL information such that the controller can collect ACL information of the first network device and manage the ACL information of the first network device.

公开(公告)号：US10461998B2

公开(公告)日：2019-10-29

申请号：US14983153

申请日：2015-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenbin Li

IPC: H04L12/24 ,  H04L12/46 ,  H04L12/751 ,  H04L12/753 ,  H04L12/18 ,  H04L12/721

Abstract: Embodiments of the present application disclose a method for advertising information about a PE device and a related apparatus, which are applied to a BGP-based MVPN. The method includes: a PE device in the MVPN determines a role of the PE device in the MVPN and a working status corresponding to the role, where the role is a root node and/or a leaf node, and the working status is active or standby; the PE device generates a BGP update message, carrying an IP address of the PE device, an identifier of the MVPN, the role of the PE device, and the working status of the PE device; and the PE device sends the BGP update message to a BGP neighbor of the PE device in the MVPN. The method and apparatus may alleviate a configuration workload and reduce an error occurrence during an application of a BGP-based MVPN.

公开(公告)号：US10432514B2

公开(公告)日：2019-10-01

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

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：US10361912B2

公开(公告)日：2019-07-23

申请号：US15391104

申请日：2016-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingui Zhang ,  Zhenbin Li

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/801 ,  H04L12/755 ,  H04L12/751 ,  H04L12/715

Abstract: Embodiments of the present invention provide a traffic switching method and apparatus. The method includes: establishing a mapping relationship between a performance parameter of a network and a forwarding node switching sequence, where the performance parameter of the network includes link usage rate before switching and link usage rate after switching; when traffic switching needs to be performed, obtaining a current performance parameter of the network, and determining, according to the mapping relationship, a switching sequence corresponding to the current performance parameter; and delivering a switching instruction to forwarding nodes according to the switching sequence, so as to control the forwarding nodes to sequentially perform traffic switching. In this way, traffic switching can be systematically implemented, thereby effectively avoiding a link congestion phenomenon in a switching process, and ensuring network performance.

公开(公告)号：US20190036794A1

公开(公告)日：2019-01-31

申请号：US16148429

申请日：2018-10-01

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L12/26 ,  H04L12/721

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：US20180375685A1

公开(公告)日：2018-12-27

申请号：US16047735

申请日：2018-07-27

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/723 ,  H04L12/721 ,  H04L12/741

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

Abstract: A first network device includes a processor configured to analyze a data stream entering a network on which the first network device is located to obtain a traffic characteristic of a target data stream, and advertise a Flow Specification (FlowSpec) route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first virtual private network (VPN) instance in a second network device, the redirect indication information instructing to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.

公开(公告)号：US09774494B2

公开(公告)日：2017-09-26

申请号：US14581009

申请日：2014-12-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Zhang ,  Zhenbin Li ,  Yuanbin Yin

IPC: H04L12/24 ,  H04L12/26

CPC classification number: H04L41/08 ,  H04L41/0604 ,  H04L43/10

Abstract: Embodiments of the present invention disclose a method, apparatus, and system for detecting performance of a layer 3 virtual private network. A first node creates an OAM instance according to OAM configuration information set by a user, and sends the OAM configuration information to a second nodet; the second node creates an OAM instance according to the OAM configuration information; and the first node performs OAM detection by sending an OAM packet to the second node and/or receiving an OAM packet from the second node, where the sending and/or receiving is implemented by using the OAM instance of the first node. According to the present invention, not only an OAM configuration procedure is simplified and manpower is saved, but also consistency of OAM configuration at two ends can be ensured. In addition, a configuration delay in this dynamic configuration manner may be ignored.

公开(公告)号：US09622276B2

公开(公告)日：2017-04-11

申请号：US14466282

申请日：2014-08-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenbin Li

IPC: H04L12/723 ,  H04W76/02 ,  H04L12/46 ,  H04W84/18

CPC classification number: H04W76/12 ,  H04L12/4633 ,  H04L45/50 ,  H04W84/18

Abstract: A method for determining to establish a multi-protocol label switching traffic engineering tunnel. A first PE receives an IGP notification message including information of a Mesh Group to which a second PE belongs and role information of the second PE released by the second PE. Then, it determines, according to information of Mesh Groups to which the two belong, whether the two belong to a same Mesh Group. After determining that the two belong to the same Mesh Group, the first PE determines, according to role information of the two, whether to establish the MPLS TE tunnel to the second PE.

公开(公告)号：US12177183B2

公开(公告)日：2024-12-24

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: H04L29/06 ,  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.