Tag Archives: sdn

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

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Casado noted that the term SDN was coined in 2009, and at the time, it did mean something fairly specific.

“Now it is just being used as a general term for networking, like all networking is SDN,” Casado said. “SDN is now just an umbrella term for cool stuff in networking.”

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

I wondered this after seeing almost every other article in networking blogs like Light Reading with SDN in the title.  Click out the sdn tag to see all that made it here.

OpenDaylight SDN Group Breaks Cover

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The OpenDaylight members plan to work on a standardized SDN controller and develop OpenDaylight APIs that sit between the controller platform and the network applications and user interfaces. The common, open source platforms will be developed using technology contributed by member companies and utilizing existing industry standards such as OpenFlow.

via Light Reading – OpenDaylight SDN Group Breaks Cover.

SDN’s Killer App: More Network Control

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When I pressed him for a real-life application that could be the result of the simpler networks that SDN promises, he didn’t disappoint. “You know how you have network neutrality now,” he asked. “What if the customer could flip it around and tell the service provider: ‘I’d like to give preference in my home network to Netflix.'”

via Light Reading – SDN’s Killer App: More Network Control.

What if the customer enforced that preference on their firewall?  They wouldn’t necessarily need this feature from their service provider.

A wireless router that tracks user activity—but for a good reason

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The optimal policies for each application are then packaged into periodic firmware updates sent back to routers. People who sign up for the cloud service and contribute data will get the updated policies in automatic updates. Even those who want nothing to do with the cloud service can get the benefits by updating their router whenever they’d like.

via A wireless router that tracks user activity—but for a good reason | Ars Technica.

What could possibly go wrong with this plan?  🙂

APAC’s Telcos Take SDN for a Spin

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NTT Com says its infrastructure-as-a-service (IaaS) offering, called Enterprise Cloud, launched in June, utilized the OpenFlow SDN protocol that enables remote controllers to modify the behaviour of network devices and was the world’s first to use network virtualization technology.

Developed using OpenFlow-enabled devices from NEC Corp., it enables users to add and control virtual appliances such as firewalls and load balancers to their networks as and when they need them, according to the operator.

via APAC’s Telcos Take SDN for a Spin – 4G/LTE – Telecom News Analysis – Light Reading Service Provider IT.

Alcatel-Lucent Has a Top-Secret SDN Startup!

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Overlay networks as proposed by companies such as Nicira Networks Inc. , now owned by VMware Inc. (NYSE: VMW), are “an important step, but what if you had a data center that had to serve 10,000 customers, and every customer had a complex topology? That’s the real world, and that’s not easy,” Alwan says.

via Alcatel-Lucent Has a Top-Secret SDN Startup! – IP & Convergence – Telecom News Analysis – Light Reading Service Provider IT.

Plexxi’s SDN Really Flattens the Data Center

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It’s all run by a controller that’s centralized but also includes a federated piece distributed to each switch. The setup is similar to the way OpenFlow gets deployed, but the inner workings are very different (and no, OpenFlow itself isn’t supported yet). Plexxi uses algorithms and a global view of the network to decide how to configure the network.

In other words, rather than programming route tables, the controller looks at the needs of the workloads and calculates how the network ought to be getting used. Some of this can even happen automatically.

via Plexxi’s SDN Really Flattens the Data Center – Mobile Backhaul – Telecom News Analysis – Light Reading.