Ironically, another challenge with SDN is there's really no established definition of “software-defined networking” in the networking industry. Different vendors offer various approaches to SDN, ranging from hardware-centric models and virtualization platforms to hyper-converged networking designs and con...
SDN是Software-defined networking的缩写,意思是“软件定义(的)网络”。SDN属于涵盖性术语(umbrella term),它包括多种网络技术,这些技术的目的是通过虚拟化(Virtuliazation)使得网络更为敏捷、灵活。在现代的数据中心(Data Center)内,计算机服务器、存储设备都已率先实现了虚拟化,作为数据传输通路的网络技术却似乎落后一...
简介:“软件定义网络 (Software-Defined Networking,SDN)”是可编程网络范式 [PNSurvey99] [OF08] 的一个术语。简而言之,SDN 是指软件应用程序能够动态地对单个网络设备进行编程,从而控制整个网络的行为 [NV09]。Boucadair 和 Jacquenet [RFC7149] 指出,SDN 是一组技术,用于以确定性、动态和可扩展的方式促进网...
数据平面由若干网元组成,每个网元可以包含一个或多个SDNDatapath。每个SDNDatapath是一个逻辑上的网络设备,单纯被用来转发和处理数据,其在逻辑上代表了 SDN技术概述 1.SDN架构定义软件定义网络(SoftwareDefinedNetworking,SDN)是一种数据平面与控制分离、软件可编程的新型网络体系架构,开放网络基金会(OpenNetwork...:SDN的...
Cisco Software-Defined Networking automates, provisions, manages, and programs networks through software interfaces. SDN is an element of intent-based networking.
Software-Defined Networking (SDN) Definition-软件定义网络 目录 软件定义的网络(SDN)定义 SDN架构是 SDN革命开始了一切 ONF SDN项目 软件定义的网络(SDN)定义 https://www.opennetworking.org/sdn-definition/ 什么是SDN?网络控制平面与转发平面的物理分隔,控制平面控制多个设备。 软件定义网络(SDN)是一种动态,可...
Software-defined networking (SDN) is an architecture that abstracts different, distinguishable layers of a network to make networks agile and flexible. The goal of SDN is to improve network control by enabling enterprises and service providers to respond quickly to changing business requirements. ...
A Working Definition All networks are controlled and managed by software, in addition many forwarded plane functions may be performed by software in some devices. Hence we could say that all networks are software defined and stop further discussion. However another approach to defining SDNs from [...
参考资料为ONF的官方网站中:Software-Defined Networking (SDN) Definition, 之前也看了一些国内的网站, 然而基本上不知所云, 所以从ONF开始吧.link What is SDN? The physical separation of the network control plane from the forwarding plane, and where a control plane controls several devices. ...
SDN全称是Software Defined Networking,我在专栏里面多次提到过。不过为了本文的完整性,再来看看什么是SDN?根据Open Networking Foundation最新的解释[3],SDN是指将网络控制层与数据层物理分隔开,并且用一个控制层软件控制多个数据层设备。这里强调了2点,一是控制层和数据层的分离,另外就是分离之后采用集中的控制层来控...