公开(公告)号：US11196620B2

公开(公告)日：2021-12-07

申请号：US17094536

申请日：2020-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenxia Dong ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li ,  Wanfu Ding

IPC: H04L12/24 ,  H04L29/08

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.

公开(公告)号：US10855524B2

公开(公告)日：2020-12-01

申请号：US15449603

申请日：2017-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenxia Dong ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li ,  Wanfu Ding

IPC: H04L29/08 ,  H04L12/24

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.

公开(公告)号：US20170134233A1

公开(公告)日：2017-05-11

申请号：US15410092

申请日：2017-01-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenxia Dong ,  Chengyong Lin ,  Wanfu Ding ,  Fengkai Li

IPC: H04L12/24 ,  H04L12/771 ,  H04L12/801

CPC classification number: H04L41/0893 ,  H04L41/0886 ,  H04L41/142 ,  H04L41/5048 ,  H04L45/56 ,  H04L47/19

Abstract: This application discloses a policy conflict resolution method which includes receiving a first control policy and decomposing the first control policy into m first rules, and receiving a second control policy and decomposing the second control policy into n second rules. The method also includes performing negation on each first rule to obtain a first negation rule, performing negation on each second rule to obtain a second negation rule, and generating a corresponding first execution rule by using each first negation rule and each second negation rule according to a rule synthesis principle. Additionally, the method includes deleting an invalid rule, using a remaining one of the first execution rules as a valid first execution rule, performing negation on each valid first execution rule, and converting, according to a protocol supported by a first forwarding device, each valid first execution rule on which negation has been performed into a corresponding forwarding entry of the first forwarding device.

公开(公告)号：US09942113B2

公开(公告)日：2018-04-10

申请号：US14981412

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanfu Ding ,  Chengyong Lin

IPC: H04L12/26 ,  H04L12/819 ,  H04L12/64

CPC classification number: H04L43/04 ,  H04L12/6418 ,  H04L43/062 ,  H04L45/54 ,  H04L47/21

Abstract: An entry adding method includes: a switch receives a first group entry sent by a controller, where the first group entry includes importance indication information of the first group entry, and a first action bucket; the switch determines that the first group entry cannot be added to a group table, and that a second group entry exits in the group table, the switch deletes the second group entry and adds the first group entry to the group table. Where importance of the second group entry is lower than importance of the first group entry; the second group entry includes a second action bucket; a quantity of first action buckets is not greater than the sum of a first value and a quantity of second action buckets; and the first value is a quantity of available action buckets in the group table.

公开(公告)号：US09860180B2

公开(公告)日：2018-01-02

申请号：US14980102

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanfu Ding ,  Chengyong Lin ,  Gaogang Xie ,  Hongtao Guan ,  Kun Huang ,  Jixing Yu

IPC: H04L12/28 ,  H04L12/851 ,  H04L12/64 ,  H04L12/801 ,  H04L12/741

CPC classification number: H04L47/2441 ,  H04L12/6418 ,  H04L45/54 ,  H04L45/745 ,  H04L47/35

Abstract: A multi-level flow table search method includes extracting matching information of a data packet when the data packet is received and selecting a keyword from the matching information of the data packet according to flow-table match-field configuration information. The method also includes searching for a match field of each-level flow table in a multi-level flow table starting from a first-level flow table in the multi-level flow table by using the keyword as a search keyword, and matching the search keyword with the match field. If matching of a match field of a current-level flow table is completed, the method includes executing a corresponding instruction, and if the current-level flow table is not a last-level flow table or there is an instruction for executing an action, executing a corresponding action.

公开(公告)号：US20160112329A1

公开(公告)日：2016-04-21

申请号：US14980102

申请日：2015-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanfu Ding ,  Chengyong Lin ,  Gaogang Xie ,  Hongtao Guan ,  Kun Huang ,  Jixing Yu

IPC: H04L12/851 ,  H04L12/801

CPC classification number: H04L47/2441 ,  H04L12/6418 ,  H04L45/54 ,  H04L45/745 ,  H04L47/35

Abstract: A multi-level flow table search method includes extracting matching information of a data packet when the data packet is received and selecting a keyword from the matching information of the data packet according to flow-table match-field configuration information. The method also includes searching for a match field of each-level flow table in a multi-level flow table starting from a first-level flow table in the multi-level flow table by using the keyword as a search keyword, and matching the search keyword with the match field. If matching of a match field of a current-level flow table is completed, the method includes executing a corresponding instruction, and if the current-level flow table is not a last-level flow table or there is an instruction for executing an action, executing a corresponding action.

Abstract translation: 多级流表搜索方法包括当接收到数据分组时提取数据分组的匹配信息，并根据流表匹配字段配置信息从数据分组的匹配信息中选择一个关键字。 该方法还包括通过使用关键字作为搜索关键字，从多级流表中的第一级流表开始，在多级流表中搜索每一级流表的匹配字段，并匹配搜索 关键字与匹配字段。 如果当前级流表的匹配字段的匹配完成，则该方法包括执行相应的指令，并且如果当前级流表不是最后一级流表，或者存在用于执行动作的指令， 执行相应的动作。

公开(公告)号：US09742667B2

公开(公告)日：2017-08-22

申请号：US15173291

申请日：2016-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanfu Ding ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li

IPC: H04L12/721 ,  H04L12/755

CPC classification number: H04L45/38 ,  H04L45/021

Abstract: The present application provides a packet processing method, device and system. A controller sends a first flow entry to a network device. The first flow entry comprises first importance information used for indicating importance of a first flow entry, where the first importance information is used by the network device to determine, according to a second importance information of a second flow entry in the flow table and the first importance information of the first flow entry, whether to add the first flow entry into a flow table of the network device when there is no idle flow entry resource in the flow table.

公开(公告)号：US20160285754A1

公开(公告)日：2016-09-29

申请号：US15173291

申请日：2016-06-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wanfu Ding ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li

IPC: H04L12/721 ,  H04L12/755

CPC classification number: H04L45/38 ,  H04L45/021

Abstract: The present application provides a packet processing method, device and system. A controller sends a first flow entry to a network device. The first flow entry comprises first importance information used for indicating importance of a first flow entry, where the first importance information is used by the network device to determine, according to a second importance information of a second flow entry in the flow table and the first importance information of the first flow entry, whether to add the first flow entry into a flow table of the network device when there is no idle flow entry resource in the flow table.

Abstract translation: 本申请提供了一种分组处理方法，设备和系统。 控制器向网络设备发送第一个流条目。 第一流入口包括用于指示第一流入口的重要性的第一重要性信息，其中网络设备使用第一重要性信息来根据流表中的第二流入口的第二重要性信息和第一重要度信息 是否在流表中没有空闲流入口资源时，是否将第一流入口添加到网络设备的流表中。

公开(公告)号：US09385948B2

公开(公告)日：2016-07-05

申请号：US13873919

申请日：2013-04-30

Applicant: Huawei Technologies Co., LTD

Inventor： Wanfu Ding ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li

IPC: H04L12/721 ,  H04L12/755

CPC classification number: H04L45/38 ,  H04L45/021

Abstract: The present application provides a packet processing method, device and system. With the present application, timely processing can be performed on a received packet according to an added first flow table entry, so that the timely processing can be implemented for a flow whose importance is high, and the problem in the prior art that a forwarding device cannot add a new flow table entry to a flow table because all flow table entry resources are in use can be relieved, thereby improving the reliability of packet processing.

Abstract translation: 本申请提供了一种分组处理方法，设备和系统。 利用本申请，可以根据添加的第一流表条目对接收到的分组进行及时处理，从而可以对其重要性高的流实现及时处理，并且现有技术中的转发设备 不能将新的流表条目添加到流表中，因为所有流表入口资源都在使用中可以被释放，从而提高了数据包处理的可靠性。

公开(公告)号：US11552841B2

公开(公告)日：2023-01-10

申请号：US17493416

申请日：2021-10-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenxia Dong ,  Enhui Liu ,  Chengyong Lin ,  Fengkai Li ,  Wanfu Ding

IPC: H04L41/08 ,  H04L41/5054 ,  H04L41/00 ,  H04L41/0893 ,  H04L41/5019 ,  H04L65/40

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.