公开(公告)号：US10135725B2

公开(公告)日：2018-11-20

申请号：US15240232

申请日：2016-08-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Qi ,  Bailin Wen ,  Fengwei Zhang

IPC: H04L12/741 ,  H04L12/703 ,  H04L12/26 ,  H04L12/715 ,  H04L12/931

Abstract: A data packet forwarding solution, which relates to the field of network transmission. A virtual switch in the solution saves a flow entry as an aging flow entry deleted from a flow table in a switch, and receives a reporting data packet generated according to a forwarding data packet when the forwarding data packet fails to match each flow entry in the flow table in the switch and a secure channel between the switch and the controller is faulty, delivers an aging flow entry matching the reporting data packet from an aging flow table to the switch, where the aging flow table includes one or more flow entries that are deleted as aging flow entries from a flow table in the switch.

公开(公告)号：US09742656B2

公开(公告)日：2017-08-22

申请号：US15137963

申请日：2016-04-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiuli Zheng ,  Bailin Wen ,  Rong Wang

IPC: H04L12/66 ,  H04L12/28 ,  H04L12/751 ,  H04L12/721 ,  H04L12/715 ,  H04L12/717 ,  H04L12/741 ,  H04L29/06

CPC classification number: H04L45/02 ,  H04L45/26 ,  H04L45/38 ,  H04L45/42 ,  H04L45/54 ,  H04L45/64 ,  H04L69/16

Abstract: Embodiments of the present invention disclose a method for acquiring, by an SDN switch, an exact flow entry, applied to an SDN network, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller communicates with each SDN switch in an inband communication manner, and the method includes: first establishing, by a first SDN switch, a reliable connection to the SDN controller; then, sending a first control message based on a packet corresponding to a protocol for the reliable connection; adding path information of the first SDN switch to the control message; and subsequently, also adding, by each SDN switch that receives the first control message, path information of each SDN switch to the first control message, so that finally, the SDN controller knows an entire path, so as to deliver a flow table to the first SDN switch.

公开(公告)号：US20160241459A1

公开(公告)日：2016-08-18

申请号：US15137963

申请日：2016-04-25

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Xiuli Zheng ,  Bailin Wen ,  Rong Wang

IPC: H04L12/751 ,  H04L29/06 ,  H04L12/741 ,  H04L12/721

CPC classification number: H04L45/02 ,  H04L45/26 ,  H04L45/38 ,  H04L45/42 ,  H04L45/54 ,  H04L45/64 ,  H04L69/16

Abstract: Embodiments of the present invention disclose a method for acquiring, by an SDN switch, an exact flow entry, applied to an SDN network, where the SDN network includes an SDN controller and multiple SDN switches, the SDN controller communicates with each SDN switch in an inband communication manner, and the method includes: first establishing, by a first SDN switch, a reliable connection to the SDN controller; then, sending a first control message based on a packet corresponding to a protocol for the reliable connection; adding path information of the first SDN switch to the control message; and subsequently, also adding, by each SDN switch that receives the first control message, path information of each SDN switch to the first control message, so that finally, the SDN controller knows an entire path, so as to deliver a flow table to the first SDN switch.

Abstract translation: 本发明的实施例公开了一种通过SDN交换机获取应用于SDN网络的SDN网络的精确流入口的方法，其中SDN网络包括SDN控制器和多个SDN交换机，SDN控制器与SDN交换机进行通信， 带内通信方式，该方法包括：首先通过第一SDN交换机建立与SDN控制器的可靠连接; 然后，基于与用于可靠连接的协议相对应的分组发送第一控制消息; 将所述第一SDN交换机的路径信息添加到所述控制消息; 并且随后，还通过接收到第一控制消息的每个SDN交换机将每个SDN交换机的路径信息添加到第一控制消息，使得最后，SDN控制器知道整个路径，以便将流表传送到 第一个SDN开关。

公开(公告)号：US20210406062A1

公开(公告)日：2021-12-30

申请号：US17469248

申请日：2021-09-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiulin Chen ,  Bailin Wen ,  Xicai Chen

IPC: G06F9/48 ,  G06F12/02

Abstract: An application start method includes obtaining a target application list when a size of free memory is greater than a preset threshold. The target application list is used to store one or more application identifiers of one or more applications whose memory is released. The application start method further includes starting, in the background, a process of an application identified in the target application list.

公开(公告)号：US20190327246A1

公开(公告)日：2019-10-24

申请号：US16458718

申请日：2019-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shanxi Chen ,  Bailin Wen

IPC: H04L29/06

Abstract: An information security verification method comprises obtaining, by a terminal, abstract information of to-be-verified information and an identification code, where the identification code is used to identify a sender that sends the to-be-verified information to the terminal, then sending an information security verification request to the sender of the to-be-verified information based on the identification code, where the information security verification request includes the abstract information of the to-be-verified information, and finally receiving a verification result from the sender, where the verification result indicates whether the sender has ever sent information same as the to-be-verified information.

公开(公告)号：US20170111259A1

公开(公告)日：2017-04-20

申请号：US15394352

申请日：2016-12-29

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Bailin Wen ,  Fangping Liu ,  Weifeng Shen ,  Hongkuan Liu

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L45/02 ,  H04L45/306 ,  H04L45/38 ,  H04L45/64

Abstract: A flow entry configuration method, apparatus, and system are disclosed. The method includes: reporting, by a switch, information about a data packet of a first service to a controller, receiving a flow entry delivered by the controller according to the information and a flow table structure, determining a first target service path matching the flow entry of the first service, determining a target hardware flow table according to a preconfigured correspondence between the service path and a hardware flow table of the switch, and configuring a flow entry of the target hardware flow table according to the flow entry of the first service. Therefore, no matter to which controller the switch is connected, the switch can successfully configure, in the hardware flow table, the flow entry used to implement the first service, so as to successfully process the first service, thereby reducing a probability of failure in service processing.

公开(公告)号：US20170070427A1

公开(公告)日：2017-03-09

申请号：US15353924

申请日：2016-11-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yulong Zeng ,  Bailin Wen ,  Jianfei Li

IPC: H04L12/741 ,  H04L12/803 ,  H04L12/707

CPC classification number: H04L45/54 ,  H04L45/24 ,  H04L45/64 ,  H04L47/125

Abstract: A method for constructing a multipath forwarding rule, an apparatus, and a system. A controller invokes a multipath algorithm to generate multiple paths for a data stream; the controller generates a multiport rule of a forwarding device according to the multiple paths; the controller generates metadata according to the multiport rule of each forwarding device, where the metadata includes information for indicating at least one forwarding port of the forwarding device; the controller generates a flow entry establishment indication; the controller sends the flow entry establishment indication to a forwarding device, such that each forwarding device selects the at least one forwarding port of the forwarding device according to the flow entry establishment indication, to forward the data stream.

Abstract translation: 一种用于构建多路径转发规则，装置和系统的方法。 控制器调用多径算法为数据流生成多个路径; 控制器根据多路径生成转发设备的多端口规则; 控制器根据每个转发设备的多端口规则生成元数据，其中元数据包括用于指示转发设备的至少一个转发端口的信息; 所述控制器生成流入口建立指示; 所述控制器向所述转发设备发送所述流入口建立指示，使得每个转发设备根据所述流入口设置指示来选择所述转发设备的所述至少一个转发端口，以转发所述数据流。

公开(公告)号：US20160359736A1

公开(公告)日：2016-12-08

申请号：US15240232

申请日：2016-08-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Qi ,  Bailin Wen ,  Fengwei Zhang

IPC: H04L12/741 ,  H04L12/26 ,  H04L12/703

CPC classification number: H04L45/54 ,  H04L43/026 ,  H04L43/10 ,  H04L45/28 ,  H04L45/64 ,  H04L49/70

Abstract: A data packet forwarding solution, which relates to the field of network transmission. A virtual switch in the solution saves a flow entry as an aging flow entry deleted from a flow table in a switch, and receives a reporting data packet generated according to a forwarding data packet when the forwarding data packet fails to match each flow entry in the flow table in the switch and a secure channel between the switch and the controller is faulty, delivers an aging flow entry matching the reporting data packet from an aging flow table to the switch, where the aging flow table includes one or more flow entries that are deleted as aging flow entries from a flow table in the switch.

Abstract translation: 一种涉及网络传输领域的数据包转发解决方案。 解决方案中的虚拟交换机将流入口作为从交换机的流表中删除的老化流入口保存，并且当转发数据包未能匹配每个流入口时，接收根据转发数据包生成的报告数据包 交换机中的流表和交换机与控制器之间的安全通道故障，将与老化流表对应的报告数据包的老化流入口传递给交换机，老化流表包括一个或多个流条目， 从交换机的流表中删除作为老化流条目。