公开(公告)号：US11290386B2

公开(公告)日：2022-03-29

申请号：US17023790

申请日：2020-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Nan Wu ,  Jianjie You

IPC: H04L12/851 ,  H04L12/715 ,  H04L12/46 ,  H04L12/66 ,  H04L12/801 ,  H04L47/2441 ,  H04L45/00 ,  H04L45/64 ,  H04L47/33

Abstract: The present disclosure discloses a flow specification (FlowSpec) message processing method. In the method, a controller forwards device interface information reported by the forwarding device; selects at least one forwarding device interface to which a FlowSpec rule needs to be applied from the received forwarding device interface information; generates an application interface rule based on the at least one forwarding device interface to which the FlowSpec rule needs to be applied; and sends a FlowSpec message to the forwarding device.

公开(公告)号：US11277348B2

公开(公告)日：2022-03-15

申请号：US16709287

申请日：2019-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Jianjie You

IPC: H04L12/841 ,  H04L47/28 ,  H04L45/00 ,  H04L29/06 ,  H04L45/02

Abstract: A route processing method includes obtaining, by a first network device, a flow effective time parameter and a route related to the flow effective time parameter, processing, by the first network device in the specified time interval, service traffic corresponding to the route related to the flow effective time parameter, generating a route control message, where the route control message carries the flow effective time parameter and the route, and sending, by the first network device, the route control message to a second network device.

公开(公告)号：US11233732B2

公开(公告)日：2022-01-25

申请号：US16025258

申请日：2018-07-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jia Che ,  Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen

IPC: G06F15/16 ,  H04L12/723 ,  H04L12/717 ,  H04L12/46

Abstract: A label management method, a data stream processing method, and a device, where the label management method includes allocating, by a controller, a source label to a data stream, sending, by the controller, a first Border Gateway Protocol (BGP) update packet to an ingress network device on a label switching path (LSP) of the data stream, and sending a second BGP update packet to an egress network device on the LSP of the data stream, where the first BGP update packet includes a stream identifier of the data stream and the source label, and the second BGP update packet includes a mapping relationship between the source label and a source object of the data stream. Hence, configuration, management, and maintenance can be simplified.

公开(公告)号：US20210409304A1

公开(公告)日：2021-12-30

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: H04L12/755 ,  H04L12/715 ,  H04L12/705 ,  H04L12/707

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.

公开(公告)号：US20210083902A1

公开(公告)日：2021-03-18

申请号：US17106931

申请日：2020-11-30

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L12/46 ,  H04L12/715 ,  H04L12/723 ,  H04L12/721 ,  H04L12/751

Abstract: In a method for managing a VPN, a routing device establishes a BMP session with a BMP server. The routing device allocates a VPN label associated with a VPN instance, wherein the VPN instance is used for communication between the routing device and another routing device. Then, the routing device sends, to the BMP server, a BMP message that carries the VPN label. Because the routing device sends the VPN label through the BMP message, the routing device does not need to establish a BGP peer relationship with the BMP server to send the VPN label.

公开(公告)号：US20210044525A1

公开(公告)日：2021-02-11

申请号：US17079415

申请日：2020-10-23

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shunwan Zhuang ,  Junlin Zhang ,  Nan Wu

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/715

Abstract: A service function chaining (SFC)-based packet forwarding method, an apparatus, and a system, where the packet forwarding method includes receiving, by a first service function forwarding node, a packet forwarding rule from a control node, where the packet forwarding rule indicating a mapping relationship between a match item of traffic characteristic information of a packet and route prefix information, receiving, by the first service function forwarding node, a first packet, where a header of the first packet carries traffic characteristic information of the first packet, determining, by the first service function forwarding node based on the packet forwarding rule, target route prefix information corresponding to the traffic characteristic information of the first packet, determining, by the first service function forwarding node, target next-hop information based on the target route prefix information, and forwarding the first packet based on the target next-hop information.

公开(公告)号：US20200336385A1

公开(公告)日：2020-10-22

申请号：US16875535

申请日：2020-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Yuanbin Yin ,  Baohua Song ,  Jianbin Xu

IPC: H04L12/24 ,  H04L29/06 ,  H04L12/715 ,  H04L12/717 ,  H04L12/66 ,  H04L12/751

Abstract: A BGP logical topology generation method includes obtaining, by a controller, node information of a first forwarder and BGP session information of the first forwarder, and obtaining node information of a second forwarder and BGP session information of the second forwarder; and generating, by the controller, a BGP logical topology between the first forwarder and the second forwarder according to the node information and the BGP session information of the first forwarder, and the node information and the BGP session information of the second forwarder that are obtained.

公开(公告)号：US10791059B2

公开(公告)日：2020-09-29

申请号：US16240242

申请日：2019-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiandeng Liang ,  Shunwan Zhuang ,  Nan Wu ,  Jianjie You

IPC: H04L12/851 ,  H04L12/801 ,  H04L12/715 ,  H04L12/66 ,  H04L12/46

Abstract: The present disclosure discloses a flow specification (FlowSpec) message processing method. In the method, a controller forwards device interface information reported by the forwarding device; selects at least one forwarding device interface to which a FlowSpec rule needs to be applied from the received forwarding device interface information; generates an application interface rule based on the at least one forwarding device interface to which the FlowSpec rule needs to be applied; and sends a FlowSpec message to the forwarding device.

公开(公告)号：US10693768B2

公开(公告)日：2020-06-23

申请号：US16230694

申请日：2018-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanbin Ouyang ,  Shunwan Zhuang ,  Fengqing Yu ,  Tao Bai ,  Lili Wang

IPC: H04L12/741 ,  H04L12/751 ,  H04L12/707 ,  H04L12/64 ,  H04L12/24 ,  H04L12/773

Abstract: A method, an apparatus and a system for controlling routing information advertising are provided, which relate to the field of communications and are used for reducing the configuration complexity and reinforcing the operability. The method includes: receiving, by a control device, first routing information sent by a first forwarding device; wherein the first routing information includes an identifier of the first forwarding device; determining a first routing path according to the identifier of the first forwarding device, an identifier of a second forwarding device and a routing path group; and determining an advertising range of second routing information for the second forwarding device according to the first routing path; for enabling the second forwarding device to advertise the second routing information according to the advertising range of the second routing information.

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.