公开(公告)号：US20230095244A1

公开(公告)日：2023-03-30

申请号：US17890710

申请日：2022-08-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yaqun XIAO ,  Huizhi WEN ,  Chuang CHEN ,  Rui GU ,  Jun QIU ,  Zhibo HU ,  Ting LIAO

IPC: H04L45/00 ,  H04L45/28 ,  H04L45/02

Abstract: Embodiments of this application disclose a packet sending method, a device, and a system, so that a specified network device does not use a backup forwarding path to forward a packet, thereby reducing, to some extent, a technical problem such as network resource waste or network congestion caused by a loop problem. The method includes: A first network device obtains a first packet destined for a destination device; the first network device adds a first indication identifier to the first packet to generate a second packet, where the first indication identifier is used to indicate a second network device to avoid using a backup forwarding path from the second network device to the destination device to send the second packet to the destination device; and the first network device sends the second packet to the second network device by using a first forwarding path.

公开(公告)号：US20150089629A1

公开(公告)日：2015-03-26

申请号：US14561713

申请日：2014-12-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rui GU ,  Jie Dong ,  Lianshu Zheng

IPC: H04L29/06 ,  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：由本地提供商边缘PE生成每个远程PE的VPN标签路由，其中​​不同远端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PE 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：US20230018292A1

公开(公告)日：2023-01-19

申请号：US17930864

申请日：2022-09-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei BAO ,  Rui GU ,  Juhua XU ,  Xinjun CHEN ,  Yaqun XIAO ,  Sheng FANG ,  Jie ZHANG

IPC: H04L45/302 ,  H04L45/02 ,  H04L47/80 ,  H04L47/76

Abstract: The application discloses a packet transmission method, an apparatus, and a network device. In an embodiment, a first network device obtains identification information corresponding to a service flow, and reserves a forwarding resource based on the identification information. The forwarding resource is used by the first network device to forward the service flow to a second network device. The first network device further sends a packet including the identification information to the second network device, and the second network device reserves a corresponding forwarding resource based on the identification information in the packet. Network devices perform resource reservation hop by hop by sending the packet including the identification information, and do not need to perform resource reservation based on a transmission path that is pre-calculated and planned, so that load of the network device or a controller is reduced, and resource reservation flexibility is improved.