很多做网络的同仁在初次了解SDN(Software Defined Networking)的架构后都会产生一系列的疑问：1)SDN真正的客户需求在哪里，它到底能解决什么问题?2)集中控制和集中网管的本质区别是什么?3)它是不是和软交换差不多?这些疑问也不无道理，简单地将控制和转发分离之后 ...

Big Switch Networks推出一款称为Big Network Controller(大网络控制器)的OpenFlow控制器。该控制器用于与支持OpenFlow的第三方网络设备互动，并为应用程序提供编程接口。控制器是OpenFlow SDN(软件定义网络)架构的重要组件，而这种架构旨在提高自动化水平和优化网络设置。

SDN诞生于美国GENI项目资助的斯坦福大学Clean Slate课题，斯坦福大学Nick McKeown教授为首的研究团队提出了Openflow的概念用于校园网络的试验创新，后续基于Openflow给网络带来可编程的特性，SDN的概念应运而生。 2006年，SDN诞生于美国GENI项目资助的斯坦福大学Clean Slate ...

SDN控制器就像是一个整个架构的中间件。控制器必须整合网络中所有物理和虚拟设备。控制器会从与设备一起工作的SDN软件中提取物理网络设备。控制器与网络设备之间高度融合。在OpenFlow环境中，控制器会使用OpenFlow协议和NETCONF协议与交换机联系。(OpenFlow是将 ...

Over the past couple of years, software-defined networking (SDN) has emerged as a strong alternative to traditional networking approaches in the areas of WAN, data center networks, and network overlay ...

CTI论坛(ctiforum)9月14日消息（记者 李文杰):2015年9月8日在美国加利佛尼亚，开放网络基金会（ONF）执行主席Dan Pitt在2015年ONF Member Workday上正式宣布华三通信的S6800和S5130 SDN交换机正式通过OpenFlow v1.3协议一致性认证测试，成为全球首批通过该认证设备的厂商之一 ...

* OpenFlow enables Ethernet network controllers to determine the path of network packets across a network of switches via software (SDN), not hardware. It is a standard supported by major switch ...

The future of networking will be defined by software. That was the overriding theme after the first day of the inaugural Open Networking Summit, a conference dedicated to software-defined networking ...

Brocade this week announced broad support for OpenFlow 1.3 across its IP product line to extend SDNs beyond research and academia and into commercial and enterprise networks. Brocade’s new 2x100G ...

Are We Now In The Post-OpenFlow SDN Wave? It feels like that even OpenFlow could play a role in SDN (as also OpenDaylight seems to support it) when either more custom ASICs (likely) or more scalable ...