公开(公告)号：US20140301183A1

公开(公告)日：2014-10-09

申请号：US14297830

申请日：2014-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L12/24

CPC classification number: H04L41/0846 ,  H04L41/0672 ,  H04L41/0893 ,  H04L45/021 ,  H04L45/50 ,  H04L45/58 ,  H04L45/60 ,  H04L67/1095

Abstract: A method, a network device, and a system for synchronization between network devices are provided. The method includes: establishing, by a first network device, an inband synchronization channel to a second network device in a MPLS-TP network, where the inband synchronization channel is a channel on a data plane, and the first network device and the second network device are included in a same backup group; sending, a first synchronization packet to the second network device through the inband synchronization channel, where the first synchronization packet carries synchronization information of the first network device, and the synchronization information of the first network device includes configuration information or status information of the first network device. The present disclosure can implement synchronization between network devices on an MPLS-TP network that does not have a control plane.

Abstract translation: 提供了一种方法，网络设备和用于网络设备之间的同步的系统。 该方法包括：通过第一网络设备将带内同步信道建立到MPLS-TP网络中的第二网络设备，其中带内同步信道是数据平面上的信道，以及第一网络设备和第二网络 设备包含在同一个备份组中; 通过带内同步信道向第二网络设备发送第一同步分组，其中第一同步分组携带第一网络设备的同步信息，第一网络设备的同步信息包括第一网络的配置信息或状态信息 设备。 本公开可以实现不具有控制平面的MPLS-TP网络上的网络设备之间的同步。

公开(公告)号：US11570021B2

公开(公告)日：2023-01-31

申请号：US17009587

申请日：2020-09-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingui Zhang ,  Lianshu Zheng

IPC: H04L12/64 ,  H04L1/18 ,  H04L1/16 ,  H04L12/46 ,  H04L47/41 ,  H04L47/26 ,  H04L47/76 ,  H04L47/125 ,  H04L41/0896

Abstract: A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

公开(公告)号：US11558274B2

公开(公告)日：2023-01-17

申请号：US17181843

申请日：2021-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L12/26 ,  H04L43/0811 ,  H04L43/00 ,  H04L45/16 ,  H04L45/00 ,  H04L45/50

Abstract: Embodiments of this application provide a bit-forwarding ingress router, a bit-forwarding router, and an OAM test method, and pertain to the field of multicast networks. A first BFR receives an OAM request packet from a BFIR; the first BFR determines, according to the OAM request packet, that a destination BFR corresponding to the OAM request packet is the first BFR; and the first BFR obtains a first OAM response packet according to an ID of the BFIR, and sends the first OAM response packet to the BFIR. According to the method and the apparatus that are provided in the embodiments of this application, a problem that a BFIR cannot diagnose or handle a transmission fault when the fault occurs during transmission of a multicast packet can be resolved, which helps implement connectivity testing by using an OAM packet and enables testing of multiple BFERs.

公开(公告)号：US20210167993A1

公开(公告)日：2021-06-03

申请号：US17118507

申请日：2020-12-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lianshu Zheng ,  Mingui Zhang

IPC: H04L12/46 ,  H04L12/741

Abstract: The present invention provides a method, a device, and a system for determining a GRE tunnel identifier, applied to a scenario in which there are at least two bonded GRE tunnels between a HAG and HCPE. The method is implemented by the HAG and includes: receiving a service packet that is sent by the HCPE through a first GRE tunnel, where the service packet includes a source IP address of the first GRE tunnel carrying the service packet, and the first GRE tunnel is one of the at least two GRE tunnels; and looking up a correspondence table according to the source IP address of the first GRE tunnel, to determine a tunnel identifier of the first GRE tunnel carrying the service packet, where the correspondence table includes a correspondence between the source IP address of the first GRE tunnel and the tunnel identifier of the first GRE tunnel.

公开(公告)号：US10965568B2

公开(公告)日：2021-03-30

申请号：US16411936

申请日：2019-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L12/26 ,  H04L12/761 ,  H04L12/733 ,  H04L12/723

Abstract: Embodiments of this application provide a bit-forwarding ingress router, a bit-forwarding router, and an OAM test method, and pertain to the field of multicast networks. A first BFR receives an OAM request packet from a BFIR; the first BFR determines, according to the OAM request packet, that a destination BFR corresponding to the OAM request packet is the first BFR; and the first BFR obtains a first OAM response packet according to an ID of the BFIR, and sends the first OAM response packet to the BFIR. According to the method and the apparatus that are provided in the embodiments of this application, a problem that a BFIR cannot diagnose or handle a transmission fault when the fault occurs during transmission of a multicast packet can be resolved, which helps implement connectivity testing by using an OAM packet and enables testing of multiple BFERs.

公开(公告)号：US10778469B2

公开(公告)日：2020-09-15

申请号：US16403237

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mingui Zhang ,  Lianshu Zheng

IPC: H04L12/64 ,  H04L12/825 ,  H04L1/16 ,  H04L1/18 ,  H04L12/46 ,  H04L12/891 ,  H04L12/917 ,  H04L12/803 ,  H04L12/24

Abstract: A packet processing method and a network device in a hybrid access network. The method comprises sending, by a first network device, a first data packet in a first sending window to a second network device by using a first tunnel. In response to receiving a first acknowledgement response sent by the second network device, increasing, by the first network device, a size of the first sending window based on a first proportion. In response to not receiving, within a first predetermined time, the first acknowledgement response, decreasing the size of the first sending window based on a second proportion; and in response to determining that the size of the first sending window is greater than or equal to a first threshold, sending a second data packet to a second receiving window of the second network device by using a second sending window.

公开(公告)号：US10116545B2

公开(公告)日：2018-10-30

申请号：US14813882

申请日：2015-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiqiang Yu ,  Guoyi Chen ,  Lianshu Zheng

IPC: H04L12/26 ,  H04L12/741

Abstract: Embodiments of the present application provide a method, device, and system for processing an OAM packet, where the method for processing an OAM packet includes: receiving, by a first network device, an operation, administration and maintenance (OAM) instruction sent by an OAM server, where the OAM instruction carries first format information and a first sending target identifier, where the first format information is used for indicating an OAM packet format; and generating, by the first network device, a first OAM packet according to the first format information, and sending the first OAM packet to a network device indicated by the first sending target identifier. The method, device, and system for processing an OAM packet provided in the embodiments of the present application achieve adaptability to different OAM standards without changing of a hardware structure of a network device, and improve OAM processing flexibility.

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。