Software-defined networking(SDN)technology is an approach to(71)management thatEnables dynamic,programmatically efficient network configuration in order to improve networkperformance and monitoring,in a manner more akin to(72)computing than to traditiona1 networkmanagement,SDN architectures decouple network control and forwarding functions,enabling thenetwork control to beconediret1y(73)and the underlying infrastructure to be abstractedFrom applications and network services.SDN was commonly associated with the(74)protocolSince the protocol's emergence in 2011.When using an SDN based mode1 for transmittingMultimedia traffic,an important aspect to take account is the(75)of Experience(QoE)estimation,To estimate the QoE,first we have to be able to classify the traffic and thenit's recommended that the system can solve critical problems on its own by analyzing thetraffic.
configurable
programmable
transformable
adaptable
(71)A. 资源 B. 设备 C.存储 D. 网 络
(72)A. 并行 B. 网格 C.分布式 D. 云
(73)A. 可配置的 B. 可编程的 C.可变换的 D. 可适应的
(74)A.OpenFlow B.OpenVPN C.OpenNet D.OpenAl
(75)A. 质量 B. 查询 C. 队列 D. 数量
软件定义网络 (SDN) 技术是一种管理方法,它能够实现动态、可编程高效的网络配置,从而改善【网 络】性能和监控,更类似于【云】计算而不是传统的网络管理。SDN 架构解耦了网络控制和转发功能, 使网络控制可以直接变得【可编程】,并且将底层基础设施与应用程序和网络服务抽象出来。自2011 年该协议出现以来, SDN最初常与【OpenFlow】 协议相关联。在使用基于SDN的模型传输多媒体流量时, 需要重点考虑体验【质量】 (QoE) 估计。要估计QoE, 首先我们必须能够对流量进行分类,然后建议 系统通过分析流量自行解决关键问题。