公开(公告)号：US10791053B2

公开(公告)日：2020-09-29

申请号：US16018946

申请日：2018-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L12/741 ,  H04L12/751 ,  H04L12/725 ,  H04L12/18 ,  H04L12/721

Abstract: An SFC-based communications method and system, and an apparatus are provided. The SFC includes a CF node, an SFF node, and an SF node, and the SFF node is connected to the SF node. The method includes: receiving, by the CF node, a first message from the SFF node; obtaining, by the CF node, network topology information of the SFC based on the first message; obtaining, by the CF node, an SFC forwarding table, where the SFC forwarding table is determined based on the network topology information of the SFC; and sending, by the CF node to the SFF node, a second message used to indicate the SFC forwarding table. In this way, a network topology of the SFC can be flexibly and efficiently discovered.

公开(公告)号：US09467423B2

公开(公告)日：2016-10-11

申请号：US14561713

申请日：2014-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui Gu ,  Jie Dong ,  Lianshu Zheng

IPC: G06F9/00 ,  H04L29/06 ,  H04L12/723 ,  H04L12/46 ,  H04L12/721

CPC classification number: H04L63/0272 ,  H04L12/4633 ,  H04L45/14 ,  H04L45/507

Abstract: Embodiments of the present invention provide a network label allocation method, a device, and a system, which enable a local PE to distinguish packets from different remote PEs. The method includes: generating, by a local provider edge PE, a VPN label route for each remote PE, where VPN labels in VPN label routes of different remote PEs are different, and the remote PE and the local PE at least belong to a same VPN; and sending the VPN label route to the remote PE, so that the remote PE separately matches an IP address of the remote PE with a target device IP address in the VPN label route, and matches an import route target RT of each VRF of the remote PE with a route target RT in the VPN label route, a packet related to a successfully matched VRF.

Abstract translation: 本发明的实施例提供一种网络标签分配方法，设备和系统，其使得本地PE能够区分来自不同远程PE的分组。 该方法包括：通过本地提供商边缘PE生成每个远程PE的VPN标签路由，其中​​不同远程PE的VPN标签路由中的VPN标签不同，远端PE和本地PE至少属于同一个 VPN; 并将VPN标签路由发送到远程PE，使远端PE分别与远端PE的IP地址和VPN标签路由中的目标设备IP地址匹配，并与远程PE的每个VRF的导入路由目标RT匹配 PE在VPN标签路由中具有路由目标RT，与成功匹配的VRF相关的数据包。

公开(公告)号：US20240356847A1

公开(公告)日：2024-10-24

申请号：US18759420

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong

IPC: H04L45/74 ,  H04L101/686

CPC classification number: H04L45/74 ,  H04L2101/686

Abstract: A route generation method, performed in 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：US12003410B2

公开(公告)日：2024-06-04

申请号：US17947316

申请日：2022-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Zongpeng Du ,  Xiaodong Chang

IPC: G06F15/16 ,  H04L45/12 ,  H04L45/24 ,  H04L45/28 ,  H04L47/762

CPC classification number: H04L45/24 ,  H04L45/123 ,  H04L45/28 ,  H04L47/762

Abstract: A method and an apparatus for establishing a forwarding path, the method including obtaining, by a first network node, path information of a to-be-established forwarding path, where the path information comprises an identifier of a network node on the forwarding path and a transmission resource requirement that needs to be allocated by the network node to the forwarding path, and sending a path establishment request packet based on the path information, where a packet header of the path establishment request packet comprises the path information, and where the path establishment request packet triggers the network node to allocate a transmission resource to the forwarding path based on the transmission resource requirement.

公开(公告)号：US11929915B2

公开(公告)日：2024-03-12

申请号：US17401101

申请日：2021-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuang Chen ,  Zhibo Hu ,  Jie Dong ,  Junda Yao

IPC: G06F15/16 ,  H04L45/02 ,  H04L45/12 ,  H04L45/16

CPC classification number: H04L45/16 ,  H04L45/02 ,  H04L45/124 ,  H04L45/127

Abstract: A path calculation method, apparatus, and device, to implement network slicing. The path calculation method includes: obtaining an algorithm constraint supported by each of a plurality of network devices, where the algorithm constraint is a constraint of a forwarding path algorithm, and the forwarding path algorithm is used to calculate, for the network device, a forwarding path that meets the algorithm constraint; performing network topology division on the plurality of network devices, where network devices in a same network topology support a same algorithm constraint; and calculating a forwarding path between network devices in each network topology based on the algorithm constraint, of the forwarding path algorithm, corresponding to the network topology.

公开(公告)号：US11805053B2

公开(公告)日：2023-10-31

申请号：US17542813

申请日：2021-12-06

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04Q11/04 ,  H04L45/00 ,  H04L12/52 ,  H04J3/16 ,  H04L12/46 ,  H04Q3/68 ,  G06K7/01 ,  H04L65/00 ,  H04L5/00 ,  H04L9/40 ,  H04L12/417 ,  H04L45/64

CPC classification number: H04L45/54 ,  G06K7/01 ,  H04J3/1658 ,  H04L5/0053 ,  H04L9/40 ,  H04L12/417 ,  H04L12/4625 ,  H04L12/52 ,  H04L45/64 ,  H04L45/66 ,  H04L65/00 ,  H04Q3/68 ,  H04Q11/04

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：US11627067B2

公开(公告)日：2023-04-11

申请号：US17378088

申请日：2021-07-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L45/02 ,  H04L45/64 ,  H04L45/60

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：US20230086487A1

公开(公告)日：2023-03-23

申请号：US18072981

申请日：2022-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yali Wang ,  Jie Dong ,  Tianran Zhou

IPC: H04L45/74 ,  H04L45/12

Abstract: A method for determining a processing capability includes: a first node sends a message to a second node. The message includes extension header processing capability information, and the extension header processing capability information is used to indicate a processing capability of the first node for an Internet Protocol (IP) version 6 (IPv6) extension header. After receiving the message, the second node obtains, based on the extension header processing capability information, the processing capability of the first node for the IPv6 extension header to determine whether the first node needs to forward or receive a packet.

公开(公告)号：US20220191138A1

公开(公告)日：2022-06-16

申请号：US17686983

申请日：2022-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Zongpeng Du

IPC: H04L45/00

Abstract: A packet sending method that supports a host in imposing a network performance requirement includes that a network device receives a first service packet from the host, where the first service packet includes a first identifier, and the first identifier indicates a network performance requirement of the first service packet; the network device adds a segment list to the first service packet based on an element to obtain a second service packet, where the element includes the first identifier, and a forwarding path corresponding to the segment list meets the network performance requirement; and the network device forwards the second service packet through the forwarding path.

公开(公告)号：US20220131791A1

公开(公告)日：2022-04-28

申请号：US17573094

申请日：2022-01-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zongpeng DU ,  Jie Dong ,  Xiaodong Chang

IPC: H04L45/00

Abstract: This application describes a data transmission method, a network node, and a storage medium for communications technologies. In this application, an underlay segment identifier corresponding to an underlay path is designed, and the underlay segment identifier is advertised, so that a node on a segment routing network can sense the underlay path by using the underlay segment identifier. In this way, when a data packet is transmitted, the data packet can be sent based on an underlay segment identifier carried in the data packet and through an underlay path corresponding to the underlay segment identifier. Therefore, an underlay path through which a data packet is to be transmitted may be specified based on a service requirement, so that different data packets can be transmitted through different underlay paths, thereby improving flexibility and facilitating traffic planning.