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Archive for the ‘OpenFlow Blog’ Category

OpenFlow website updated

March 20th, 2011, Glen Gibb in OpenFlow Blog

The OpenFlow website has been updated. There are two mains goals for this update: i) to ensure that information presented is correct and up-to-date, and ii) to improve the look-and-feel of the website.

Note: You may need to force your browser to refresh the page if the website appears broken.

OpenFlow to be Showcased at Interop 2011 in Las Vegas

March 18th, 2011, capveg in OpenFlow Blog

A group of volunteers from the enterprise networking trade show Interop will be showcasing OpenFlow as part of their “InteropNet Labs” display. The lab will demonstrate OpenFlow’s cross-vendor interoperability through a series of demonstrations.

Interop is in Las Vegas on May 8-12.

For more information:

And press:

NEC provides OpenFlow switches for European research initiatives

March 10th, 2011, Glen Gibb in OpenFlow Blog

NEC has delivered OpenFlow switches to a number of European research institutions. The switches will be used to help build research infrastructure within Europe as part of two research programs: OFELIA and CHANGE.


OpenFlow 1.1 (Implemented) specification released

March 1st, 2011, Glen Gibb in Announcements, OpenFlow Blog

The OpenFlow 1.1 (Implemented) specification was released March 1st, 2011. The new version adds significant new features to OpenFlow, particularly for multipath, tags/tunnels, and the ability to exploit multiple hardware tables in chips.

The specification is available for download: openflow-spec-v1.1.0.pdf


FlowVisor version 0.7 released

February 13th, 2011, capveg in OpenFlow Blog

An updated version of FlowVisor has been released that adds a small number of features and addresses a number of bugs.

Switch donation jumpstarts new OpenFlow deployments

February 9th, 2011, srini in OpenFlow Blog

The GENI Project Office (GPO), in an effort to grow the OpenFlow networking substrate for GENI, funded Stanford Unviersity to distribute OpenFlow-enabled switches to campuses to help them create or grow their existing OpenFlow networks for both research and production use. We distributed approximately 30 Pronto 3290 switches among the following campuses:

MAX Gigapop
(PIs: Abdella Battou,
Balasubramania N. Pillai)

RENCI (Renaissance Computing Institute)’
(PI: Ilia Baldine)

Kansas State University (ECE Dept)
(PIs: Caterina Scoglio,
Don Gruenbacher)

North Carolina State University
(PI: Rudra Dutta)

Duke University
(PI: Jeff Chase)

University of North Carolina
(PI: Don Smith)

North Carolina Central University
(PIs: R. N. Uma, Donghyun David Kim,
and Alade Tokuta)

Clemson University
(PIs: Kuang-Ching Wang,
Richard Brooks, Haiying Shen,
and Sebastien Goasguen)

Georgia Institute of Technology
(PIs: Nick Feamster, Russell Clark)

University of Arizona
(PI: Srini Ramasubramanian)

We are excited about the participation of 8 new institutions in the OpenFlow trials through this donation. We look forward to successful deployment of OpenFlow networks at all these campuses and exciting research enabled by them.

OpenFlow at GEC9

November 7th, 2010, Guido Appenzeller in OpenFlow Blog

At the GENI Engineering Conference 9 last week in Washington DC there were a number of demos based on OpenFlow in both the demo session on Tuesday evening as well as during the plenary on Wednesday morning . In fact, it was very exciting to see how the majority of the demos at least in the plenary session were using OpenFlow as well as the Slicing infrastructure that GENI uses to manage its OpenFlow based networks. In the research community, OpenFlow is on its way to becoming the tool of choice for innovative new networking research and large scale experimentation.


Guru Parulkar on stage at GEC9

For a complete list, have a look at the List of Plenary Demos and the List of Posters on the GPO Web Site. One of the most amazing demos from the demo floor was Indiana Universitie’s GlobalNOC WorldView in 3D. If Minority Report meets network management, this is how it would look like.

The Stanford OpenFlow team was present with two demos. The updated Load Balancing demo used VoIP to allow the audience to participate vie their cell phones. It also used a much larger topology spanning 10 local networks that spanned the continent and the National Lambda Rail backbone. It was followed by a new mobile handover demo from Stanford. It showed video streaming from a golf cart driving around the Stanford Campus. Stanford’s OpenFlow Network allowed the mobile client to make simultaneous use of multiple WiFi base stations and the Stanford WiMax deployment, without needing Mobile IP or any other similar solution. Demo pages for both demos should be up in the next weeks and we’ll post here again.

Congratulations to all the teams at GEC9! This was definitely the most impressive set of demos I have ever seen at GEC, and possibly at any networking conference.

CPqD Ports OpenFlow to New Platform

October 13th, 2010, dtalayco in OpenFlow Blog

CPqD is a private non-profit Brazilian R&D foundation.  Recently they announced the first switch in South America to support the OpenFlow 1.0 specification. The switch uses Broadcom L2/L3 silicon with 24 x 1Gb ports and 2 x 10Gb ports.  It has a high performance CPU running the Indigo-beta-4 release from Stanford.

Tens of these OpenFlow switches will be deployed in Project GIGA´s High-speed Experimental Network, an IP/Ethernet/WDM network testbed run by CPqD and RNP (Brazilian NREN). Today the GIGA network connects 66 research labs at multigigabit per second rates in the southeast region of Brazil, but will soon be upgraded to support 100Gb/s bit rates, using technology developed in project GIGA, and expanded to all the other regions of the country, using RNP´s network resources.

This large-scale OpenFlow infrastructure will be fundamental to the national initiative on Future Internet that CPqD and RNP, amongst others, are leading, as well as to support collaborative experiments related to projects GIGA and GENI.

The development of the OpenFlow switch and the development of an IP routing stack solution that runs outside the switches on top of NOX (stay tuned!) are under the Future Internet umbrella of CPqD´s current R&D program, which includes a number of projects, such as Project GIGA.

CPqD was the R&D branch of Brazil´s telephony monopoly system until 1997, when the whole system was privatized. Since then CPqD is a private foundation with the goal of bridging the gap between university research and product development, helping (mainly) local companies to innovate and compete in the market. Today CPqD has more than 30 years of existence and 1200 employees carrying out R&D activities on various ICT sectors.

Pantou : OpenFlow 1.0 for OpenWrt now available! (alpha release)

August 18th, 2010, yiannisy in OpenFlow Blog

Pantou is the code name for the OpenFlow 1.0 software release for the OpenWrt platform. It can be used with a variety of wireless routers supported by the OpenWrt project, and allows you to get an OpenFlow-enabled device with less than $100. Look at the release notes regarding supported devices, upgrade process and other details.

This is an alpha release but should be good enough to start experimenting with. We welcome any feedback to help us towards a stable release!

Upcoming OpenFlow Tutorial at HOT-Interconnects 2010

August 12th, 2010, yiannisy in Announcements, OpenFlow Blog

Update : The tutorial was held with great success! Slides are available here. You can go through the tutorial on your own following these instructions.

The next OpenFlow tutorial will take place on August 20 in Mountain View, CA as part of HOT Interconnects Symposium.

This tutorial is an opportunity to gain hands-on experience with the platforms and debugging tools most useful for developing network control applications on OpenFlow. Following an introduction, each participant will create a flow-based Ethernet switch. Along the way, attendees will learn the full suite of OpenFlow debugging tools: view flow tables with dpctl, dissect packets with Wireshark, slice with FlowVisor, simulate a multi-switch, multi-host network with Mininet on their laptops, and control a network with real switches.
The only requirement is to bring a laptop; no experience is required.

For further details regarding HOT-I 2010 and registration, click here !