公开(公告)号：US11201820B2

公开(公告)日：2021-12-14

申请号：US16940323

申请日：2020-07-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haoyu Song ,  Zhenbin Li ,  Tianran Zhou ,  James N. Guichard ,  Stewart Frederick Bryant ,  Andrew G. Malis

IPC: H04L12/723 ,  H04L29/06

Abstract: Described herein are methods and devices (e.g., routers) for performing segment routing over a multiprotocol label switching (MPLS) network. A method can include a router of the MPLS network receiving a packet, and the router modifying the packet by adding a segment routing header (SRH) type MPLS extension header. The SRH type MPLS extension header includes one or more segment identifiers (SIDs) that collectively provide a SID list for use in segment routing. The method further comprises the router copying one of the one or more SIDs in the SRH type MPLS extension header to a top of an MPLS label stack, and the router forwarding the packet as modified to another router of the MPLS network based on the one of the one or more SIDs included in a label stack entry at the top of the MPLS label stack.

公开(公告)号：US20240171510A1

公开(公告)日：2024-05-23

申请号：US18393064

申请日：2023-12-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fan Yang ,  Tianran Zhou ,  Yun Chen

IPC: H04L45/00 ,  H04L45/302 ,  H04L45/74

CPC classification number: H04L45/566 ,  H04L45/3065 ,  H04L45/74

Abstract: A packet transmission method and device are disclosed. A first pseudo wire (PW) is established between a first node and a second node. The first node obtains a first service packet, and performs SRv6 encapsulation on the first service packet to obtain a second service packet. The second service packet includes the first service packet and information about the first PW. The first node sends the second service packet to the second node through the first PW. After receiving the second service packet, the second node performs SRv6 decapsulation on the second service packet to obtain the first service packet. An ingress PE device can perform SRv6 encapsulation on a PW service, and encapsulate PW description information and a to-be-transmitted service packet into an actually sent service packet, and an egress PE device performs SRv6 decapsulation on the service packet received through the PW to obtain the to-be-transmitted service packet.

公开(公告)号：US11943099B2

公开(公告)日：2024-03-26

申请号：US18153883

申请日：2023-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Tianran Zhou ,  Weidong Li ,  Jie Dong

IPC: H04L41/0803

CPC classification number: H04L41/0803

Abstract: A method according to embodiments of this application includes: A first network device sends a first packet to a second network device, where the first packet includes first indication information, and the first indication information indicates a support status of an iFIT capability corresponding to the first network device or a first service module included in the first network device. The first network device sends the packet to the second network device, to notify the support status of the IFIT capability of the first network device. In this way, the second network device can determine, based on the iFIT capability of the first network device, whether to encapsulate a measurement header, to avoid that a service packet cannot be correctly processed because the first network device cannot strip the measurement header from the service packet.

公开(公告)号：US20230344752A1

公开(公告)日：2023-10-26

申请号：US18332438

申请日：2023-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yali Wang ,  Fan Yang ,  Tianran Zhou

IPC: H04L45/28 ,  H04L45/00 ,  H04L45/42

CPC classification number: H04L45/28 ,  H04L45/566 ,  H04L45/42

Abstract: A method for collecting bit error information is provided. According to the method, a head node may encapsulate indication information into an IPv6 extension header of an IPv6 measurement request packet. The indication information indicates at least one intermediate node on a transmission path of the IPv6 measurement request packet to record bit error information into the IPv6 extension header. According to the application, the bit error information of the intermediate node on the transmission path can be collected.

公开(公告)号：US20230145245A1

公开(公告)日：2023-05-11

申请号：US18153883

申请日：2023-01-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shunwan Zhuang ,  Haibo Wang ,  Tianran Zhou ,  Weidong Li ,  Jie Dong

IPC: H04L41/0803

CPC classification number: H04L41/0803

Abstract: A method according to embodiments of this application includes: A first network device sends a first packet to a second network device, where the first packet includes first indication information, and the first indication information indicates a support status of an iFIT capability corresponding to the first network device or a first service module included in the first network device. The first network device sends the packet to the second network device, to notify the support status of the IFIT capability of the first network device. In this way, the second network device can determine, based on the iFIT capability of the first network device, whether to encapsulate a measurement header, to avoid that a service packet cannot be correctly processed because the first network device cannot strip the measurement header from the service packet.

公开(公告)号：US11582156B2

公开(公告)日：2023-02-14

申请号：US17324943

申请日：2021-05-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cairen Weng ,  Tianran Zhou ,  Haifeng Wu ,  Dachao Yang

IPC: H04L47/2425 ,  H04L43/0829 ,  H04L43/12 ,  H04L47/28

Abstract: A traffic detection method, apparatus, and system are provided. A first network device obtains a packet, where the packet is any packet of the traffic. The first network device adds a detection flag and detection indication information to the packet to update the packet, where the detection flag is used to indicate a position of the detection indication information, where the detection indication information includes a first flag, and the first flag is used to indicate whether the traffic is to-be-detected traffic. The first network device sends an updated packet to a second network device. According to this method, traffic performance is detected, and flexibility and extensiveness of traffic performance detection are improved.

公开(公告)号：US20210328860A1

公开(公告)日：2021-10-21

申请号：US17360001

申请日：2021-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianran Zhou ,  Ling Xu ,  Min Liu ,  Bo Lu

IPC: H04L12/24 ,  H04L12/26

Abstract: Embodiments of this application disclose an iOAM packet transmission method and related apparatus. In the method, a tail node device in a measurement domain receives a first iOAM packet, and determines whether the first iOAM packet includes an important data identifier. If the first iOAM packet includes the important data identifier, the tail node device generates, based on the first iOAM packet, a notification message that includes first node information, and sends the notification message to a management device in an iOAM network. According to the solution in the embodiments of this application, only when the received first iOAM packet includes the important data identifier, the tail node device generates the notification message based on the first iOAM packet and reports the notification message.

公开(公告)号：US20200044956A1

公开(公告)日：2020-02-06

申请号：US16600720

申请日：2019-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenjing Yu ,  Tianran Zhou ,  Yinben Xia

IPC: H04L12/721 ,  H04L12/729 ,  H04L12/727

Abstract: The method includes, when a first data packet of a data stream is received and the first data packet is not the first data packet of the data stream, determining a time interval between a first receiving time and a second receiving time, where the first receiving time is when the first data packet is received, and the second receiving time is when a second data packet is received, obtaining a sent data amount of the data stream, and determining a transmission path of the first data packet from a plurality of available transmission paths based on the time interval and the sent data amount, and transmitting the first data packet through the determined transmission path.

公开(公告)号：US12301449B2

公开(公告)日：2025-05-13

申请号：US17692629

申请日：2022-03-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianran Zhou ,  Yuezhong Song

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/24 ,  H04L43/0829 ,  H04L47/34

Abstract: A path detection method includes a source node that sends a first detection packet including multipath detection indication information and detection data collection indication information, to detect a plurality of paths from the source node to a destination node. A first node directly sends the first detection packet including the multipath detection indication information and the detection data collection indication information to a next-hop node such that the next-hop node of the first node collects detection data in a manner of the first node and no path from the source node to the destination node is missed.

公开(公告)号：US12003413B2

公开(公告)日：2024-06-04

申请号：US18332438

申请日：2023-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yali Wang ,  Fan Yang ,  Tianran Zhou

IPC: H04L45/28 ,  H04L45/00 ,  H04L45/42

CPC classification number: H04L45/28 ,  H04L45/42 ,  H04L45/566

Abstract: A method for collecting bit error information is provided. According to the method, a head node may encapsulate indication information into an IPv6 extension header of an IPv6 measurement request packet. The indication information indicates at least one intermediate node on a transmission path of the IPv6 measurement request packet to record bit error information into the IPv6 extension header. According to the application, the bit error information of the intermediate node on the transmission path can be collected.