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公开(公告)号：US10999194B2
公开(公告)日：2021-05-04
申请号：US16279401
申请日：2019-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changjiang Yan , Shunwan Zhuang , Nan Wu , Guoyi Chen , Zhenbin Li , Baohua Song
IPC: H04L12/741 , H04L12/715 , H04L12/803 , H04L12/851
Abstract: An information synchronization method includes sending, by a controller, a first message to a network device, where the first message carries control routing protocol (CRP) routing entry information, and is used to advertise a CRP route, and the first message includes first identification information, and after receiving the first message, storing, by a forwarding device, the CRP routing entry information into a CRP routing table of the network device as indicated by the first identification information. Hence, because a route advertised by the controller and a route advertised using a routing protocol between forwarding devices are stored in different routing tables, a related application of the route advertised using the routing protocol between the forwarding devices is not affected.
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公开(公告)号：US10911354B2
公开(公告)日：2021-02-02
申请号：US16120014
申请日：2018-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changjiang Yan
IPC: H04L12/741 , H04L12/721 , H04L12/725 , H04L12/715 , H04L12/723 , H04L12/801 , H04L29/12
Abstract: The application disclose a packet processing method that includes: receiving, by a service distribution node, service routing information sent by a controller, where the service routing information includes a flow identifier, a service identifier, and a next-hop address, the flow identifier is used to identify a packet flow, the service identifier is used to identify a sequence of a service node instance that processes the packet flow, and the next-hop address is used to identify the service node instance that processes the packet flow; receiving a first packet; acquiring a first flow identifier according to the first packet, and searching the service routing information according to the first flow identifier to acquire a matched service identifier and a matched next-hop address; and sending a second packet to a first service node instance that has the matched next-hop address, which implements service processing on a packet flow.
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公开(公告)号：US20190182152A1
公开(公告)日：2019-06-13
申请号：US16279401
申请日：2019-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changjiang Yan , Shunwan Zhuang , Nan Wu , Guoyi Chen , Zhenbin Li , Baohua Song
IPC: H04L12/741
Abstract: An information synchronization method includes sending, by a controller, a first message to a network device, where the first message carries control routing protocol (CRP) routing entry information, and is used to advertise a CRP route, and the first message includes first identification information, and after receiving the first message, storing, by a forwarding device, the CRP routing entry information into a CRP routing table of the network device as indicated by the first identification information. Hence, because a route advertised by the controller and a route advertised using a routing protocol between forwarding devices are stored in different routing tables, a related application of the route advertised using the routing protocol between the forwarding devices is not affected.
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公开(公告)号：US20190182145A1
公开(公告)日：2019-06-13
申请号：US16279398
申请日：2019-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changjiang Yan , Shunwan Zhuang , Nan Wu
IPC: H04L12/733 , H04L12/741 , H04L12/66 , H04L12/46
Abstract: An information management method includes that a controller generates a first message carrying an address of a first next hop of a network device. The first message includes first identification information. The first identification information instructs the network device to delete, from a next hop table stored in the network device, an entry of the first next hop corresponding to the address of the first next hop. The network device receives the first message, and deletes the entry of the first next hop as indicated by the first identification information. The controller withdraw an unavailable next hop by separately sending information about the next hop to the network device without route prefix information, effectively saving a system resource occupied for route withdrawal message exchanging between the controller and the network device, and improving service processing efficiency.
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公开(公告)号：US20190020584A1
公开(公告)日：2019-01-17
申请号：US16120014
申请日：2018-08-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Changjiang Yan
IPC: H04L12/741 , H04L12/721 , H04L29/12 , H04L12/723 , H04L12/725 , H04L12/801 , H04L12/715
Abstract: The application disclose a packet processing method that includes: receiving, by a service distribution node, service routing information sent by a controller, where the service routing information includes a flow identifier, a service identifier, and a next-hop address, the flow identifier is used to identify a packet flow, the service identifier is used to identify a sequence of a service node instance that processes the packet flow, and the next-hop address is used to identify the service node instance that processes the packet flow; receiving a first packet; acquiring a first flow identifier according to the first packet, and searching the service routing information according to the first flow identifier to acquire a matched service identifier and a matched next-hop address; and sending a second packet to a first service node instance that has the matched next-hop address, which implements service processing on a packet flow.
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Patent Agency Ranking
公开(公告)号：US20150146571A1
公开(公告)日：2015-05-28
申请号：US14575386
申请日：2014-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yi Xiong , Xiaoqian Wu , Changjiang Yan , Jiehui Hu
IPC: H04L12/24
Abstract: Embodiments of the present invention provide a method, a device, and a system for controlling a network path, where the method includes: the first control device generates path information for a first AP according to network topology information, and generates first forwarding information for the first AP according to acquired forwarding resource information of the first AP and the path information, and sends the first forwarding information to the first AP; the first control device determines that a second AP which is not managed by the first control device is included in the path information, sends the path information to a second control device for managing the second AP, so that the second control device generates second forwarding information for the second AP according to the path information and the acquired forwarding resource information of the second AP, and sends the second forwarding information to the second AP.
Abstract translation: 本发明的实施例提供了一种控制网络路径的方法，装置和系统，其中该方法包括：第一控制装置根据网络拓扑信息生成第一AP的路径信息，并且生成用于 第一AP根据获取的第一AP的转发资源信息和路径信息，并将第一转发信息发送给第一AP; 第一控制装置确定未被第一控制装置管理的第二AP被包括在路径信息中，将路径信息发送到用于管理第二AP的第二控制装置，使得第二控制装置生成第二转发信息 对于第二AP，根据路径信息和所获取的第二AP的转发资源信息，将第二转发信息发送给第二AP。
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公开(公告)号：US11658905B2
公开(公告)日：2023-05-23
申请号：US16985695
申请日：2020-08-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Zhou , Yi Xiong , Shunwan Zhuang , Changjiang Yan
IPC: H04L45/44 , H04L45/64 , H04L45/02 , H04L45/00 , H04L47/125
CPC classification number: H04L45/44 , H04L45/02 , H04L45/04 , H04L45/38 , H04L45/64 , H04L47/125 , H04L45/54
Abstract: A controller, including a processor and a non-transitory computer-readable storage medium storing a program to be executed by the processor for managing a first autonomous system (AS), the program including instructions to receive a first Border Gateway Protocol (BGP) routing message, determine a destination node, the destination node belonging to the first AS, determine, according to a node that sends the first BGP routing message, whether to perform incoming-traffic adjustment and control, allocate a source node from a second AS directly connected to the first AS, obtain a preferred path between the source and destination nodes according to a network topology, determine a first BR and a second BR on the preferred path, and send a routing control message to a specified BR belonging to the first AS instructing the specified BR to use the first BR as a next hop for packet forwarding of the second BR.
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公开(公告)号：US11528216B2
公开(公告)日：2022-12-13
申请号：US17035239
申请日：2020-09-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shunwan Zhuang , Changjiang Yan , Fengqing Yu , Fei Chen , Lili Wang , Yuanbin Ouyang
Abstract: A method and an apparatus for controlling a network traffic path are provided. The method includes: receiving routing advertisement information from a first network to a second network; determining all routing nodes included in a path through which data pass when flowing from the second network to the first network according to the routing advertisement information; and configuring a next hop routing node for each determined routing node, where the next hop routing node is a node in all the routing nodes included in the path and is adjacent to the routing node for which the next hop routing node is configured, and the routing node for which the next hop routing node is configured does not include a routing node of the first network or a routing node of the second network.
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公开(公告)号：US20210083974A1
公开(公告)日：2021-03-18
申请号：US17107909
申请日：2020-11-30
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Changjiang Yan
IPC: H04L12/741 , H04L12/725 , H04L12/721 , H04L12/723 , H04L29/12 , H04L12/801 , H04L12/715
Abstract: The application disclose a packet processing method that includes: receiving, by a service distribution node, service routing information sent by a controller, where the service routing information includes a flow identifier, a service identifier, and a next-hop address, the flow identifier is used to identify a packet flow, the service identifier is used to identify a sequence of a service node instance that processes the packet flow, and the next-hop address is used to identify the service node instance that processes the packet flow; receiving a first packet; acquiring a first flow identifier according to the first packet, and searching the service routing information according to the first flow identifier to acquire a matched service identifier and a matched next-hop address; and sending a second packet to a first service node instance that has the matched next-hop address, which implements service processing on a packet flow.
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公开(公告)号：US20200344153A1
公开(公告)日：2020-10-29
申请号：US16927585
申请日：2020-07-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dongjun Wu , Changjiang Yan , Shibi Huang
IPC: H04L12/707 , H04L12/24 , H04L12/725 , H04L12/26
Abstract: A packet processing method including a traffic classifier receives a first packet; the traffic classifier determines, in policy information in the traffic classifier and according to a first filtering rule that matches the first packet, a first service identifier that matches the first filtering rule, and an address, which matches the first filtering rule, of a first service routing trigger. The traffic classifier sends a second packet to the first service routing trigger. The policy information includes a filtering rule, an address of a service routing trigger, and a service identifier corresponding to the filtering rule. The filtering rule is used to identify a packet, and the service identifier is used to represent a sequence of a service node that processes the packet. The second packet is formed by adding the first service identifier to the first packet.
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