公开(公告)号：US20170048153A1

公开(公告)日：2017-02-16

申请号：US15337081

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Feng ,  Huan Zhang ,  Jiang Tan

IPC: H04L12/851 ,  H04L12/715 ,  H04L12/721 ,  H04L12/741

CPC classification number: H04L47/2441 ,  H04L45/38 ,  H04L45/64 ,  H04L45/745

Abstract: A data packet processing method, Where the method includes matching a received data packet in a flow table, and determining the received data packet as a newly-established data packet, where the newly-established data packet is a data packet that needs to be reported to a controller to determine a processing manner, determining a target priority of the newly-established data packet, and reporting the newly-established data packet to the controller according to the target priority. Priorities of data packets entering an OPENFLOW switch are determined, and for unsuccessfully matched data packets, a data packet having a high priority is forwarded preferentially according to the priorities, thereby ensuring that data having a high priority is not discarded.

Abstract translation: 一种数据分组处理方法，其中所述方法包括：匹配流表中的接收数据分组，并将接收到的数据分组确定为新建立的数据分组，其中新建立的数据分组是需要报告的数据分组 向控制器确定处理方式，确定新建立的数据分组的目标优先级，并根据目标优先级将新建立的数据分组报告给控制器。 确定进入OPENFLOW交换机的数据分组的优先级，对于未成功匹配的数据分组，根据优先级优先转发具有高优先级的数据分组，从而确保不丢弃具有高优先级的数据。

公开(公告)号：US10541914B2

公开(公告)日：2020-01-21

申请号：US15812642

申请日：2017-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Feng ,  Jianyao Liang ,  Huibin Luo

IPC: H04L12/801 ,  H04L12/721 ,  H04L12/707 ,  H04L12/723 ,  H04L12/46 ,  H04L12/733 ,  H04L12/741 ,  H04L29/12

Abstract: A data packet forwarding method and a network device, where the method includes, receiving a data packet, obtaining a local physical address and a destination physical address of the data packet when the entry matching the data packet does not exist in the first match table, determining whether the local physical address is the same as the destination physical address, searching a second match table for an entry in which a physical address matches the destination physical address when the local physical address is different from the destination physical address, generating a layer 2 forwarding entry according to the entry matching the destination physical address, and forwarding the data packet according to the layer 2 forwarding entry. Therefore, processing efficiency of the new data packet and network performance are improved.

公开(公告)号：US10461986B2

公开(公告)日：2019-10-29

申请号：US15700174

申请日：2017-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Zhang ,  Weifeng Shen ,  Qiang Feng

IPC: H04L29/06

Abstract: A data transmission method in software-defined networking (SDN) environment using transmission control protocol (TCP). An application server sends a transmission resource allocation request to a controller. The request carries an address of a sending device and an address of a receiving device. The controller determines a first transmission path and a second transmission path between the sending device and the receiving device according to the request. The first transmission path is used by the sending device to transmit data to the receiving device, and the second transmission path is used by the receiving device to transmit an acknowledgment to the sending device. The controller sends a transmission resource allocation response to the application server. The application server determines, according to the response, an initial value of a transmit window for transmitting data. The sending device transmits the data to the receiving device according to the transmit window.

公开(公告)号：US09887912B2

公开(公告)日：2018-02-06

申请号：US15198268

申请日：2016-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang Feng ,  Weifeng Shen ,  Xiuchu Zhao

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

CPC classification number: H04L45/38 ,  H04L45/745 ,  H04L69/22

Abstract: The present disclosure discloses a flow table matching method and apparatus and an OpenFlow switching system to implement matching of any field in any data flow without changing existing hardware logic or a standard protocol. The method includes: receiving a jump instruction and a match instruction that are delivered by a controller for a first flow table; creating a first flow entry in the first flow table; receiving a flow mode message delivered by the controller for a second flow table; and creating a second flow entry in the second flow table. The present disclosure lays a foundation for implementing really flexible and programmable software-defined networking, assists a network service operator in reducing capital expenditures and operation expenditures, and enables a traditional IP network to have more flexible network abstraction and management capabilities for a real-time service.

公开(公告)号：US20170373915A1

公开(公告)日：2017-12-28

申请号：US15700174

申请日：2017-09-10

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Fengwei Zhang ,  Weifeng Shen ,  Qiang Feng

IPC: H04L29/06

CPC classification number: H04L29/06136 ,  H04L69/163 ,  H04L69/166

Abstract: A data transmission method in software-defined networking (SDN) environment using transmission control protocol (TCP). An application server sends a transmission resource allocation request to a controller. The request carries an address of a sending device and an address of a receiving device. The controller determines a first transmission path and a second transmission path between the sending device and the receiving device according to the request. The first transmission path is used by the sending device to transmit data to the receiving device, and the second transmission path is used by the receiving device to transmit an acknowledgment to the sending device. The controller sends a transmission resource allocation response to the application server. The application server determines, according to the response, an initial value of a transmit window for transmitting data. The sending device transmits the data to the receiving device according to the transmit window.

公开(公告)号：US10693731B2

公开(公告)日：2020-06-23

申请号：US15293376

申请日：2016-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang ,  Qiang Feng

IPC: G06F15/173 ,  H04L12/24 ,  H04L29/06 ,  H04L12/721

Abstract: A flow entry management method comprises receiving a management instruction for any flow entry, where the management instruction is initiated by a controller connected to a switch, wherein the switch may first determine, according to an obtained management authority level of the the controller relative to the switch and a security level of the any flow entry, when the management authority level of the any controller relative to the the switch is not lower than the security level of the a flow entry corresponding to the management instruction initiated by the any controller, that the controller has an authority to perform corresponding management on the any flow entry, and perform corresponding management on the any flow entry according to the management instruction initiated by the controller.

公开(公告)号：US20180069789A1

公开(公告)日：2018-03-08

申请号：US15812642

申请日：2017-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Feng ,  Jianyao Liang ,  Huibin Luo

IPC: H04L12/721 ,  H04L12/723 ,  H04L12/707 ,  H04L12/741

Abstract: A data packet forwarding method and a network device, where the method includes, receiving a data packet, obtaining a local physical address and a destination physical address of the data packet when the entry matching the data packet does not exist in the first match table, determining whether the local physical address is the same as the destination physical address, searching a second match table for an entry in which a physical address matches the destination physical address when the local physical address is different from the destination physical address, generating a layer 2 forwarding entry according to the entry matching the destination physical address, and forwarding the data packet according to the layer 2 forwarding entry. Therefore, processing efficiency of the new data packet and network performance are improved.

公开(公告)号：US20170034005A1

公开(公告)日：2017-02-02

申请号：US15293376

申请日：2016-10-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianyao Liang ,  Qiang Feng

IPC: H04L12/24 ,  H04L12/721 ,  H04L29/06

CPC classification number: H04L41/12 ,  H04L45/38 ,  H04L69/08

Abstract: A flow entry management method comprises receiving a management instruction for any flow entry, where the management instruction is initiated by a controller connected to a switch, wherein the switch may first determine, according to an obtained management authority level of the the controller relative to the switch and a security level of the any flow entry, when the management authority level of the any controller relative to the the switch is not lower than the security level of the a flow entry corresponding to the management instruction initiated by the any controller, that the controller has an authority to perform corresponding management on the any flow entry, and perform corresponding management on the any flow entry according to the management instruction initiated by the controller.

Abstract translation: 流入口管理方法包括接收任何流入口的管理指令，其中所述管理指令由连接到交换机的控制器发起，其中所述交换机可以首先根据获得的所述控制器相对于所述控制器的管理权限级别来确定 交换机和任何流入口的安全级别，当任何控制器相对于交换机的管理权限级别不低于与任何控制器发起的管理指令相对应的流入口的安全级别时， 控制器有权对任何流条目执行相应的管理，并根据控制器发起的管理指令对任意流条目进行相应的管理。

公开(公告)号：US10230647B2

公开(公告)日：2019-03-12

申请号：US15337081

申请日：2016-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Feng ,  Huan Zhang ,  Jiang Tan

IPC: H04L12/851 ,  H04L12/715 ,  H04L12/741 ,  H04L12/721

Abstract: A data packet processing method, Where the method includes matching a received data packet in a flow table, and determining the received data packet as a newly-established data packet, where the newly-established data packet is a data packet that needs to be reported to a controller to determine a processing manner, determining a target priority of the newly-established data packet, and reporting the newly-established data packet to the controller according to the target priority. Priorities of data packets entering an OPENFLOW switch are determined, and for unsuccessfully matched data packets, a data packet having a high priority is forwarded preferentially according to the priorities, thereby ensuring that data having a high priority is not discarded.