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Is an OpenFlow switch the only option for SDN?

The protocol most frequently associated with software-defined networking (SDN) is OpenFlow, but other options may lure you elsewhere. SDN puts switch intelligence and other functions on a virtualized ... read more

OpenFlow SDN Inventor Martin Casado on SDN, VMware, and Software Defined Networking Hype [VIDEO]

"SDN and OpenFlow came out of work we were doing at Stanford," Casado said. OpenFlow, one of the defining protocols of SDN, was actually a byproduct of the open-source NOX controller. NOX was built as ... read more

SDN is not OpenFlow, but OpenFlow is a real disruption

I’m sure that many people will declare me wrong, but the promise of SDN and the promise of OpenFlow ... the underlying networking hardware in the same way OpenFlow can. However, OpenFlow — the ... read more

What is OpenFlow? Definition and How it Relates to SDN

OpenFlow (OF) is considered one of the first software-defined networking (SDN) standards. It originally defined the communication protocol in SDN environments that enables the SDN Controller to ... read more

Cisco On Board with SDN, OpenFlow

One such transition occurring is the emergence of software defined networking (SDN) and the OpenFlow protocol and it's a transition that Cisco doesn't plan to miss. While some have speculated that SDN ... read more

Goodbye SDN Controller, Hello Infrastructure Controller: Creating a Hardware Abstraction Layer for the Cloud

Nicira's recent proposal for the Open vSwitch Database Management Protocol (OVSDB) indicated that perhaps that OpenFlow is too low ... changed by the momentum that SDN has gained. My Take: I think the ... read more

OpenFlow SDN protocol flaw affects all versions, could lead to DoS attack

OpenFlow, a protocol used widely in software-defined networking (SDN), suffers from a serious security bug: Important authentication and authorization steps are missing from its handshake process. ... read more

What risks does the OpenFlow protocol vulnerability present?

What does the OpenFlow vulnerability entail and what risks does it present to enterprises using the SDN protocol? The vulnerability in the OpenFlow protocol is due to the absence of an authentication ... read more

ONF envisioning a more wireless-friendly OpenFlow

He stressed that the group's approach revolves around maintaining the 3GPP control and signaling that already exists in the cellular system in order to enable operators to start using SDN and the ... read more

What is an OpenFlow Controller?

An OpenFlow Controller is a type of SDN Controller that uses the OpenFlow Protocol. An SDN Controller is the strategic point in software-defined network (SDN). An OpenFlow Controller uses the OpenFlow ... read more

How Much Do You Really Know About Network Virtualization, SDN and OpenFlow?

There is much more to SDN though then OpenFlow. Network protocols you already use like SNMP for instance is an example of an SDN protocol. SDN is long on potential and promise right now, but still in ... read more