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    Service link selection control method and device
    1.
    发明授权
    Service link selection control method and device 有权

    公开(公告)号：US11240159B2

    公开(公告)日：2022-02-01

    申请号：US16529325

    申请日：2019-08-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shibi Huang ,  Yong Tian ,  Linda Dunbar

    IPC: G01R31/08 ,  H04L12/851 ,  H04L12/24 ,  H04L12/725 ,  H04L29/08 ,  H04L12/721 ,  H04M15/00 ,  H04L12/859

    Abstract: Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.

    Method for implementing service chain, device, and system
    3.
    发明授权
    Method for implementing service chain, device, and system 有权

    公开(公告)号：US10700891B2

    公开(公告)日：2020-06-30

    申请号：US15835603

    申请日：2017-12-08

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Weiguo Hao ,  Qiandeng Liang ,  Shibi Huang

    IPC: H04L12/46 ,  H04L12/24 ,  H04L12/735 ,  H04L12/721 ,  H04L12/715 ,  H04L12/851 ,  H04L12/725

    Abstract: A method of implementing a service chain in a service chain-enabled domain network includes: receiving, by an intermediate service node (SN), an extended first Border Gateway Protocol (BGP) packet from a downstream SN that is on a service chain path and immediately adjacent to the intermediate SN, the extended first BGP packet including a service chain path identifier identifying the service chain path and a first service chain path including a service chain path from an ingress SN to the intermediate SN, determining an upstream SN that is on the first service chain path and immediately adjacent to the intermediate SN, and sending an extended second BGP packet to the upstream SN, the extended second BGP packet including the service chain path identifier and a second service chain path including a service chain path from the ingress SN to the upstream SN.

    Method, apparatus, and system for load balancing of service chain
    4.
    发明授权
    Method, apparatus, and system for load balancing of service chain 审中-公开

    公开(公告)号：US10673760B2

    公开(公告)日：2020-06-02

    申请号：US15336287

    申请日：2016-10-27

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Shibi Huang ,  Yong Huang ,  Yong Tian ,  Linda Dunbar

    IPC: H04L12/46 ,  H04L12/833 ,  H04L12/24 ,  H04L12/803 ,  H04L29/08 ,  H04L12/721

    Abstract: A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function PCRF unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.

    Method, system, and entity for exercising policy control
    5.
    发明授权
    Method, system, and entity for exercising policy control 有权

    公开(公告)号：US10306073B2

    公开(公告)日：2019-05-28

    申请号：US14635819

    申请日：2015-03-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weihua Qiao ,  Xinfa Wang ,  Cheng Chen ,  Shiyong Tan ,  Yan Li ,  Shibi Huang ,  Peng Zhao ,  Yuxin Mao

    IPC: H04M15/00 ,  H04L12/801 ,  H04L12/813 ,  H04L12/859 ,  H04L12/14

    Abstract: A method and a system for exercising policy control, a policy and charging enforcement function (PCEF) are provided, which can solve the problem that no policy control can be exercised over application service flows without an application function (AF). In the method, a PCRF receives information about an application event sent by a PCEF after subscribing the application event from the PCEF; and the PCRF generates a control policy for a service flow of the application according to the information about the application event. In the present invention, the PCEF sends the obtained information about the application event to the PCRF, so that even when no AF is involved, the PCRF can still generate a control policy according to policy contexts including the information about the application event and the like.

    Method and Apparatus for Forwarding Packet
    7.
    发明申请
    Method and Apparatus for Forwarding Packet 审中-公开
    转发数据包的方法和装置

    公开(公告)号：US20160359745A1

    公开(公告)日：2016-12-08

    申请号：US15243108

    申请日：2016-08-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weiguo Hao ,  Yizhou Li ,  Hui Ni ,  Shibi Huang

    IPC: H04L12/741 ,  H04L29/12 ,  H04L12/715 ,  H04L12/46

    CPC classification number: H04L45/745 ,  H04L12/46 ,  H04L12/4633 ,  H04L12/4641 ,  H04L12/4645 ,  H04L45/64 ,  H04L61/103 ,  H04L61/6022

    Abstract: A method and an apparatus for forwarding a packet, where a first network virtualization edge (NVE) receives a first packet sent by a first tenant end system (TES), where a destination Internet Protocol (IP) address of the first packet is an IP address of a second TES, a destination media access control (MAC) address of the first packet is a gateway MAC address corresponding to the first NVE. The first NVE acquires an access virtual network identifier (VN ID) and a layer 3 virtual private network (VPN) instance identifier of the first TES, and searches a routing and forwarding table, to obtain an entry corresponding to the IP address of the second TES. Then the first NVE encapsulates the first packet into a network virtualization overlays (NVO3) packet according to the entry, and forwards the NVO3 packet to a second NVE to forward to the second TES.

    Abstract translation: 一种用于转发分组的方法和装置，其中第一网络虚拟化边缘（NVE）接收由第一租户端系统（TES）发送的第一分组，其中第一分组的目的地因特网协议（IP）地址是IP 第二TES的地址，第一分组的目的地媒体访问控制（MAC）地址是对应于第一NVE的网关MAC地址。 第一NVE获取第一TES的接入虚拟网络标识符（VN ID）和第三层虚拟专用网（VPN）实例标识符，并且搜索路由和转发表，以获得对应于第二TIP的IP地址的条目 TES。 然后，第一个NVE根据条目将第一个数据包封装到网络虚拟化覆盖（NVO3）数据包中，并将NVO3数据包转发到第二个NVE，以转发到第二个TES。

    Service processing method and system, and policy control and charging rules function
    8.
    发明授权
    Service processing method and system, and policy control and charging rules function 有权
    服务处理方法和系统，策略控制和计费规则功能

    公开(公告)号：US09438522B2

    公开(公告)日：2016-09-06

    申请号：US14069546

    申请日：2013-11-01

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Shibi Huang ,  Peng Zhao ,  Yuxin Mao ,  Shiyong Tan ,  Yan Li ,  Weihua Qiao

    IPC: G06F15/173 ,  H04L12/851 ,  H04L12/14 ,  H04L12/66 ,  H04L12/24 ,  H04M15/00

    CPC classification number: H04L47/2433 ,  H04L12/14 ,  H04L12/66 ,  H04L41/0893 ,  H04L41/0896 ,  H04L41/5003 ,  H04M15/66

    Abstract: A service processing method, a service processing system, and a PCRF entity are disclosed to overcome this defect in the prior art: The prior art is unable to handle services discriminatively according to the policy context information when different services require the same QoS level. The method includes: receiving bearer priority information from a PCRF entity, where the bearer priority information includes: bearer priority information of a service data stream, bearer priority information of an IP-CAN session, and/or bearer priority information of an IP-CAN bearer; and handling services according to the bearer priority information. In the embodiments of the present disclosure, the policy context information is converted into bearer priority information so that the PCEF handles services according to the bearer priority information. In this way, different services that require the same QoS level are handled discriminatively according to the policy context information.

    Abstract translation: 公开了一种服务处理方法，服务处理系统和PCRF实体来克服现有技术中的这种缺陷：当不同的服务需要相同的QoS级别时，现有技术不能根据策略上下文信息区别地处理服务。 该方法包括：从PCRF实体接收承载优先级信息，其中承载优先级信息包括：业务数据流的承载优先级信息，IP-CAN会话的承载优先级信息和/或IP-CAN承载优先级信息 承载人 并根据承载优先级信息处理业务。 在本公开的实施例中，策略上下文信息被转换为承载优先级信息，使得PCEF根据承载优先级信息处理业务。 以这种方式，根据策略上下文信息来区别地处理需要相同QoS级别的不同服务。

    Traffic Classifier, Service Routing Trigger, and Packet Processing Method and System
    9.
    发明申请
    Traffic Classifier, Service Routing Trigger, and Packet Processing Method and System 审中-公开
    流量分类器，服务路由触发器和数据包处理方法和系统

    公开(公告)号：US20160050141A1

    公开(公告)日：2016-02-18

    申请号：US14924499

    申请日：2015-10-27

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Dongjun Wu ,  Changjiang Yan ,  Shibi Huang

    IPC: H04L12/707 ,  H04L12/26

    Abstract: A packet processing method includes: 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. Where the policy information includes: a filtering rule, an address of a service routing trigger, and a service identifier corresponding to the filtering rule. Where 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. Where the second packet is formed by adding the first service identifier to the first packet.

    Abstract translation: 分组处理方法包括：流分类器接收第一分组; 流分类器在流分类器的策略信息中，根据与第一分组匹配的第一过滤规则，确定与第一过滤规则匹配的第一服务标识符和与第一过滤规则匹配的第一服务标识符， 服务路由触发。 流分类器向第一个业务路由触发发送第二个报文。 策略信息包括：过滤规则，业务路由触发地址，以及与过滤规则对应的业务标识符。 其中使用过滤规则来识别分组，并且服务标识符用于表示处理分组的服务节点的序列。 其中通过将第一服务标识符添加到第一分组而形成第二分组。

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