公开(公告)号：US20190356596A1

公开(公告)日：2019-11-21

申请号：US16529325

申请日：2019-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi HUANG ,  Yong TIAN ,  Linda DUNBAR

IPC: H04L12/851 ,  H04L12/725 ,  H04L12/24 ,  H04L29/08

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.

公开(公告)号：US20170048148A1

公开(公告)日：2017-02-16

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: H04L12/803 ,  H04L12/833

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.

Abstract translation: 提供了一种用于服务链的负载平衡的方法，装置和系统。 该方法包括：由流分类器接收策略发送的业务链选择和控制策略以及计费规则功能PCRF单元; 通过流分类器根据哈希量对与服务链标识符相对应的服务流进行散列，以获得多个子流，以及将服务链标识符和散列因子添加到子流的分组，其中不同的子流对应于不同的散列因子 ; 并且通过流分类器将服务链标识符和散列因子之后的子流的分组发送到转发设备。

公开(公告)号：US20200351204A1

公开(公告)日：2020-11-05

申请号：US16876784

申请日：2020-05-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi HUANG ,  Yong HUANG ,  Yong TIAN ,  Linda DUNBAR

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

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.

公开(公告)号：US20170019341A1

公开(公告)日：2017-01-19

申请号：US15280682

申请日：2016-09-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibi HUANG ,  Yong TIAN ,  Linda DUNBAR

IPC: H04L12/851 ,  H04L12/859 ,  H04L29/08

CPC classification number: H04L47/2441 ,  H04L41/0893 ,  H04L45/306 ,  H04L45/38 ,  H04L47/2475 ,  H04L67/327 ,  H04M15/66

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.

Abstract translation: 公开了流分类器，策略和计费规则功能单元和控制器。 流分类器接收策略和计费规则功能单元发送的服务链选择控制策略。 服务链选择控制策略包括应用类型和服务链标识符之间的对应关系。 服务链是由转发设备和增值服务设备形成的路径，其中应用类型的服务流都需要通过。 流分类器基于服务链选择控制策略检测具有应用类型的服务流，并将服务链的标识符添加到服务流的消息。 流分类器将具有业务链附加标识符的业务流消息发送给直接连接流分类器的转发设备。