Patents by Inventor Enhui Liu

Enhui Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210058286
    Abstract: This application provides a method and an apparatus for configuring a service, which help to implement automatic configuration of a service and improve efficiency. The method provided in this application includes: obtaining, by an NaaS device, a contract of a service, where the contract includes identifier information and a condition, the identifier information is used to identify a first device group, the first device group includes a device that provides the service, and the condition is a communication requirement corresponding to the service; obtaining, by the NaaS device, information about a network device group according to the identifier information and the condition; obtaining, by the NaaS device, a first forwarding rule according to the condition, where the first forwarding rule corresponds to the network device group; and sending, by the NaaS device, the first forwarding rule and the information about the network device group to a controller.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Inventors: Wenxia DONG, Enhui LIU, Chengyong LIN, Fengkai LI, Wanfu DING
  • Publication number: 20210021490
    Abstract: Embodiments of the present invention provide a packet processing method, a forwarding plane device and a network device, the method includes: receiving, by a forwarding plane device, a first packet transmitted by a user, where an identity of the user is comprised in the first packet, and a forwarding table is comprised in the forwarding plane device; determining, by the forwarding plane device, an identity of a service according to a corresponding relationship between the identity of the user and the identity of the service as well as the identity of the user in the first packet; generating, by the forwarding plane device, a second packet by encapsulating the first packet with the identity of the service; and transmitting the second packet to a network device, to enable the network device to manage the service according to the identity of the service in the second packet.
    Type: Application
    Filed: August 4, 2020
    Publication date: January 21, 2021
    Inventors: Chengyong Lin, Enhui Liu, Wenyang Lei
  • Publication number: 20200389392
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Application
    Filed: June 2, 2020
    Publication date: December 10, 2020
    Inventors: Shihui Hu, Enhui Liu, Delei Yu, Chengyong Lin
  • Patent number: 10855524
    Abstract: This application provides a method and an apparatus for configuring a service, which help to implement automatic configuration of a service and improve efficiency. The method provided in this application includes: obtaining, by an NaaS device, a contract of a service, where the contract includes identifier information and a condition, the identifier information is used to identify a first device group, the first device group includes a device that provides the service, and the condition is a communication requirement corresponding to the service; obtaining, by the NaaS device, information about a network device group according to the identifier information and the condition; obtaining, by the NaaS device, a first forwarding rule according to the condition, where the first forwarding rule corresponds to the network device group; and sending, by the NaaS device, the first forwarding rule and the information about the network device group to a controller.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: December 1, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wenxia Dong, Enhui Liu, Chengyong Lin, Fengkai Li, Wanfu Ding
  • Patent number: 10771356
    Abstract: A packet processing method, a forwarding plane device and a network device, where the method includes receiving, by a forwarding plane device, a first packet transmitted by a user, where an identity of the user is comprised in the first packet, and a forwarding table is comprised in the forwarding plane device, determining, by the forwarding plane device, an identity of a service according to a corresponding relationship between the identity of the user and the identity of the service as well as the identity of the user in the first packet, generating, by the forwarding plane device, a second packet by encapsulating the first packet with the identity of the service, and transmitting the second packet to a network device to enable the network device to manage the service according to the identity of the service in the second packet.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 8, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chengyong Lin, Enhui Liu, Wenyang Lei
  • Patent number: 10693772
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 23, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shihui Hu, Enhui Liu, Delei Yu, Chengyong Lin
  • Patent number: 10686696
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 16, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shihui Hu, Enhui Liu, Delei Yu, Chengyong Lin
  • Publication number: 20190372881
    Abstract: A method for implementing network virtualization, and a related apparatus and a communications system are provided. The method for implementing network virtualization may include: receiving, by an SDN controller, a virtual network creation request that carries virtual network topology information; creating a virtual network in response to the virtual network creation request; establishing, by the SDN controller, a device mapping relationship; establishing, by the SDN controller, a port mapping relationship; allocating, by the SDN controller, a virtual SDN controller to the virtual network; and registering, by the SDN controller, a first virtual forwarding device and a second virtual forwarding device with the virtual SDN controller. Technical solutions of embodiments of the present invention help to improve networking flexibility, reduce service costs, and shorten a service deployment period.
    Type: Application
    Filed: August 14, 2019
    Publication date: December 5, 2019
    Applicant: HUAWEI TECHNOLOGIES CO, LTD.,
    Inventors: Shihui HU, Mingming ZHU, Guangpeng LI, Enhui LIU
  • Patent number: 10419326
    Abstract: A method for implementing network virtualization, and a related apparatus and a communications system are provided. The method for implementing network virtualization may include: receiving, by an SDN controller, a virtual network creation request that carries virtual network topology information; creating a virtual network in response to the virtual network creation request; establishing, by the SDN controller, a device mapping relationship; establishing, by the SDN controller, a port mapping relationship; allocating, by the SDN controller, a virtual SDN controller to the virtual network; and registering, by the SDN controller, a first virtual forwarding device and a second virtual forwarding device with the virtual SDN controller. Technical solutions of embodiments of the present invention help to improve networking flexibility, reduce service costs, and shorten a service deployment period.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 17, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shihui Hu, Mingming Zhu, Guangpeng Li, Enhui Liu
  • Patent number: 10419333
    Abstract: Embodiments of the present application provide a method and an apparatus for compressing a label stack. The method includes: obtaining a first label stack corresponding to a forwarding path, where the first label stack comprises node labels corresponding to each node on the forwarding path; selecting a first node label from the first label stack, where when forwarding a packet, a node corresponding to the first node label is capable of encapsulating at least two layers of labels in the packet; replacing at least two adjacent labels located after the first node label in the first label stack with a first compression label, to generate a second label stack; and instructing a source node on the forwarding path to perform packet processing according to the second label stack. In this way, a length of a label stack pushed into the packet can be shortened.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 17, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xuefeng Lin, Enhui Liu, Guoyi Chen
  • Patent number: 10411911
    Abstract: A network as a service (NaaS) service cross-domain orchestration method to implement an end-to-end NaaS service in a multi-domain network that includes multiple network domains where the method includes obtaining information about a first user-to-network interface (UNI) and information about a second UNI in a multi-domain network according to a received NaaS service request, where the NaaS service request is used to request to establish an NaaS service between a first terminal and a second terminal; querying domain resource information to obtain a cross-domain path between the first UNI and the second UNI; determining network domains that the cross-domain path passes through, and obtaining a first connection requirement and a second connection requirement of each network domain of the network domains that the cross-domain path passes through; and sending the first connection requirement and the second connection requirement to a control device in each network domain.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 10, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Fengkai Li, Enhui Liu, Chengyong Lin, Wenxia Dong
  • Publication number: 20190140941
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 9, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shihui HU, Enhui LIU, Delei YU, Chengyong LIN
  • Publication number: 20190140942
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 9, 2019
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Shihui Hu, Enhui Liu, Delei Yu, Chengyong Lin
  • Patent number: 10148562
    Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 4, 2018
    Assignee: HUAWEI TECHNOLOGY CO., LTD.
    Inventors: Shihui Hu, Enhui Liu, Delei Yu, Chengyong Lin
  • Publication number: 20180331921
    Abstract: A packet processing method, a forwarding plane device and a network device, where the method includes receiving, by a forwarding plane device, a first packet transmitted by a user, where an identity of the user is comprised in the first packet, and a forwarding table is comprised in the forwarding plane device, determining, by the forwarding plane device, an identity of a service according to a corresponding relationship between the identity of the user and the identity of the service as well as the identity of the user in the first packet, generating, by the forwarding plane device, a second packet by encapsulating the first packet with the identity of the service, and transmitting the second packet to a network device to enable the network device to manage the service according to the identity of the service in the second packet.
    Type: Application
    Filed: July 23, 2018
    Publication date: November 15, 2018
    Inventors: Chengyong Lin, Enhui Liu, Wenyang Lei
  • Patent number: 10057165
    Abstract: Embodiments disclose a packet forwarding method and device. The method includes: obtaining, by a packet forwarding device, a feature character included in a packet to be forwarded. The feature character is obtained by parsing, according to a preset packet content parsing policy, other content included in the packet to be forwarded except a 5-tuple. The method includes determining, according to a correspondence between different feature characters and corresponding routing information, routing information corresponding to the obtained feature character, and sending, according to the determined routing information, the packet to be forwarded.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: August 21, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Enhui Liu, Delei Yu, Chengyong Lin
  • Patent number: 10044574
    Abstract: Embodiments of the present invention provide a packet processing method, a forwarding plane device and a network device, the method includes: receiving, by a forwarding plane device, a first packet transmitted by a user, where an identity of the user is comprised in the first packet, and a forwarding table is comprised in the forwarding plane device; determining, by the forwarding plane device, an identity of a service according to a corresponding relationship between the identity of the user and the identity of the service as well as the identity of the user in the first packet; generating, by the forwarding plane device, a second packet by encapsulating the first packet with the identity of the service; and transmitting the second packet to a network device, to enable the network device to manage the service according to the identity of the service in the second packet.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: August 7, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chengyong Lin, Enhui Liu, Wenyang Lei
  • Patent number: 10003540
    Abstract: The present application discloses a flow forwarding method, device, and system. The method includes: receiving, by an edge node, an intelligent routing service request packet, and the packet includes a constraint condition required for establishing the intelligent routing service; if the edge node does not find, in a flow table, a corresponding matching flow table entry of characteristic information, sending, by the edge node, a first message to a controller, where the first message includes identification information of the edge node and the characteristic information and the edge node is an ingress edge-node or an egress edge-node that receives the packet; receiving, a first flow table entry sent by the controller, where the first flow table entry is generated according to the first message and meets the constraint condition; and processing, according to the first flow table entry, a packet sent by the user side device.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: June 19, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Enhui Liu, Xinping Wang, Chengyong Lin
  • Patent number: 9973443
    Abstract: The embodiments of the present invention relate to the field of computer networks, and disclose a method and an apparatus for processing a multicast packet. The method includes receiving a multicast packet, acquiring a local router interface corresponding to the multicast packet according to a multicast routing entry carried in the multicast packet, and forwarding the multicast packet through the acquired local router interface to a clustered routing system interface for further transfer. The embodiments of the present invention can cluster several routing devices into a virtual routing system which externally acts as a single routing node for supporting a multicast service, so as to implement the efficient and reliable forwarding of the multicast packet in a clustered routing system with virtual aggregation, and enable the clustered routing system to support the multicast service with high efficiency and quality.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 15, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Enhui Liu, Xinping Wang
  • Publication number: 20170302474
    Abstract: A network as a service (NaaS) service cross-domain orchestration method to implement an end-to-end NaaS service in a multi-domain network that includes multiple network domains where the method includes obtaining information about a first user-to-network interface (UNI) and information about a second UNI in a multi-domain network according to a received NaaS service request, where the NaaS service request is used to request to establish an NaaS service between a first terminal and a second terminal; querying domain resource information to obtain a cross-domain path between the first UNI and the second UNI; determining network domains that the cross-domain path passes through, and obtaining a first connection requirement and a second connection requirement of each network domain of the network domains that the cross-domain path passes through; and sending the first connection requirement and the second connection requirement to a control device in each network domain.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 19, 2017
    Inventors: Fengkai Li, Enhui Liu, Chengyong Lin, Wenxia Dong