公开(公告)号：US11245620B2

公开(公告)日：2022-02-08

申请号：US17226443

申请日：2021-04-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/723 ,  H04L29/06 ,  H04L12/46 ,  H04L12/707 ,  H04L12/741 ,  H04L12/851 ,  H04L12/801

Abstract: A method for forwarding a packet, and a network device are provided. According to the method a first packet can be received. The first packet includes first indication information, payload data, and a packet sequence number of the first packet in a data flow corresponding to the first packet. When the first network device determines that the first packet includes the first indication information, a plurality of second packets can be generated based on the first packet. Each of the plurality of second packets includes the payload data, the packet sequence number, and second indication information. The plurality of second packets can be separately forwarded to a second network device over different forwarding paths in a plurality of forwarding paths.

公开(公告)号：US11218408B2

公开(公告)日：2022-01-04

申请号：US16879100

申请日：2020-05-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/723 ,  H04L12/24 ,  H04L12/46 ,  H04L12/911

Abstract: The present disclosure discloses a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet.

公开(公告)号：US11212222B2

公开(公告)日：2021-12-28

申请号：US17132755

申请日：2020-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong ,  Xinyuan Wang ,  Jun Gong

IPC: H04L12/741 ,  H04L12/721 ,  H04L29/02 ,  H04L12/52 ,  H04J3/16 ,  H04L12/46 ,  H04Q3/68 ,  G06K7/01 ,  H04L12/417 ,  H04L12/715

Abstract: A data sending method includes receiving, by a forwarding device using a first flexible Ethernet (FlexE) group and in multiple timeslots included in a first timeslot set, multiple first encoded data blocks from a physical coding sublayer (PCS), determining, by the forwarding device according to the timeslots included in the first timeslot set and the first FlexE group, a second FlexE group and multiple timeslots included in a second timeslot set, and sending, by the forwarding device, the first encoded data blocks using the second FlexE group and in the timeslots included in the second timeslot set.

公开(公告)号：US20210344586A1

公开(公告)日：2021-11-04

申请号：US17378088

申请日：2021-07-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L12/751 ,  H04L12/715 ,  H04L12/773

Abstract: A method for synchronizing topology information in a service function chain (SFC) network, where the SFC network includes at least one classifier (CF) and at least one service function forwarder (SFF). The method includes that a first network element in the at least two routing network elements establishes a Border Gateway Protocol (BGP) connection to at least one second network element other than the first network element in the at least two routing network elements, where the first network element is any one of the at least two routing network elements, and the first network element sends a first BGP update message to the at least one second network element, where the first BGP update message includes topology information of the first network element such that the at least one second network element obtains the topology information of the first network element.

公开(公告)号：US20210314819A1

公开(公告)日：2021-10-07

申请号：US17350485

申请日：2021-06-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen

IPC: H04W28/16 ,  H04W76/11 ,  H04L12/24 ,  H04L12/751 ,  H04W28/02 ,  H04W40/24 ,  H04W48/18 ,  H04L12/741 ,  H04W16/12 ,  H04L12/911 ,  H04W76/25 ,  H04W16/04 ,  H04W28/26 ,  H04W4/50

Abstract: A forwarding entry generation method includes sending, by a controller, a plurality of resource allocation request messages to a plurality of network devices in a network slice, to trigger the plurality of network devices to allocate resources, where the resource allocation request message includes an identifier of the network slice and a resource that needs to be allocated by a corresponding network device to the network slice; receiving, by the controller, a plurality of resource allocation response messages including the identifier of the network slice and a segment identifier of a corresponding network device, and a resource allocated by each device belongs to the network slice; and generating, by the controller, a forwarding table corresponding to the network slice, where the forwarding table includes a forwarding entry for arriving at a network device in the network slice.

公开(公告)号：US20210167994A1

公开(公告)日：2021-06-03

申请号：US17146607

申请日：2021-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong

IPC: H04L12/46 ,  H04L12/751 ,  H04L12/715 ,  H04L12/713 ,  H04L12/741

Abstract: A packet transmission method, implemented by a first network device includes determining a first master logical interface, where the first master logical interface is associated with a first virtual network identifier and a first sub-logical interface, and the first sub-logical interface is associated with a second virtual network identifier, and receiving an advertisement packet from a second network device through the first master logical interface, where the advertisement packet includes the first virtual network identifier, first internet protocol (IP) information associated with the first virtual network identifier, the second virtual network identifier, and second IP information associated with the second virtual network identifier.

公开(公告)号：US20210135979A1

公开(公告)日：2021-05-06

申请号：US17145564

申请日：2021-01-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Stefano Previdi ,  Guoyi Chen

IPC: H04L12/735 ,  H04L12/721 ,  H04L12/707 ,  H04L12/723

Abstract: A method and an apparatus for obtaining information about a forwarding path of a data packet in segment routing (SR) include, when a first path indicated by a plurality of path identifiers in initial information is a unique shortest path from a start node on the first path to an end node on the first path, the first path is indicated using a node-segment identifier (SID) of the end node on the first path instead of the path identifiers.

公开(公告)号：US20210084009A1

公开(公告)日：2021-03-18

申请号：US17105434

申请日：2020-11-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong

IPC: H04L29/12 ,  H04L12/741

Abstract: This application provides a route generation method, applied to an SRv6 network and including: receiving, by a first network device, a first notification packet from a second network device; where the first notification packet includes a network slice identifier, the first notification packet indicates an association relationship between information of the network slice identifier and an IPv6 address prefix of the second network device, and the network slice identifier is used to identify one network slice; and generating, by the first network device, a route forwarding entry for the IPv6 address prefix of the second network device based on an association relationship between the network slice identifier and the IPv6 address prefix of the second network device. This helps implement a network slice and resource isolation in the SRv6.

公开(公告)号：US10826846B2

公开(公告)日：2020-11-03

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 ,  H04L12/24 ,  H04L12/46 ,  H04L29/08 ,  H04L12/715

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：US10749804B2

公开(公告)日：2020-08-18

申请号：US15989199

申请日：2018-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Shuanglong Chen ,  Zhenbin Li ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/803 ,  H04L12/707 ,  H04L12/721 ,  H04L12/743 ,  H04L12/911 ,  H04L12/723

Abstract: The present disclosure discloses a method and an apparatus for implementing load sharing. The method includes: for a congested first link on a first forwarding node, selecting, by a network device, a packet flow forwarded by using the first link; selecting a second link that may be used to forward the packet flow and that is not congested after available bandwidth of the second link is occupied by the packet flow, where the second link is a link between the first forwarding node and a second forwarding node; selecting a first hash gene corresponding to the second link; determining that a third link is not in a congested state after available bandwidth of the third link is occupied by the packet flow; and saving the first hash gene in a source node of the packet flow, where the third link is a link that is on the second forwarding node.