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OpenFlow News

Archive for the ‘Announcements’ Category

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

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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 !

OpenFlow 1.0 Released

December 31st, 2009, Guido Appenzeller in Announcements, OpenFlow Blog

Today we are releasing version 1.0 of the OpenFlow Switch Specification as well as the OpenFlow Switch Reference Implementation. You can find it on the download page or pull it directly from the public git repository.

Unlike previous releases, OpenFlow 1.0 is the first release of the standard that we feel is ready to be implemented in generally available products. We have been running OpenFlow in our Stanford network over the past months, and it has proven itself for both production use as well as experimentation.

OpenFlow 1.0 adds a number of key features. The largest addition is Slicing, a simple QoS mechanism that allows the isolation of traffic in OpenFlow networks. Smaller changes include matching IP addresses in ARP packets, Flow Cookies to identify flows, selective port statistics and matching on the ToS bits in the IP header. The release also includes a large number of small changes to the specification and bug fixes in the reference implementation. For a complete list of changes read the Release Notes or the more detailed Wiki Page.

Hardware accelerated OpenFlow 1.0 capable switches are expected to become available over the next months and we will keep you updated on the OpenFlow Blog and the OpenFlow-Announce Mailing List. On the controller side the reference controller supports 1.0 and there is a version of NOX with partial support available. If you deploy OpenFlow 1.0, feedback and bug reports are highly welcome via Trac or the openflow-discuss mailing list.

This release would not have been possible without the work of (in alphabetical order) Guido Appenzeller, Peter Balland, Martin Casado, David Erickson, Glen Gibb, Brandon Heller, Mikio Hara, Bob Lantz, Masayoshi Kobayashi, Nick McKeown, Justin Pettit, Ben Pfaff, Rob Sherwood, Srini Seetharaman, Dan Talayco, Jean Tourrilhes, Tatsuya Yabe, KK Yap, Yiannis Yiakoumis as well as to the many other members of the OpenFlow community that provided valuable suggestions, feedback and testing.

Thanks to all of you!

Brandon, Glen and Guido

FlowVisor Tech Report and New Version Released

October 15th, 2009, capveg in Announcements, OpenFlow Blog

FlowVisor is a network virtualization layer built on top of OpenFlow.¬† The FlowVisor allows a single physical network to be sliced into multiple logical OpenFlow networks, allowing researchers to run multiple OpenFlow controllers on the same set of devices.¬† The technical report details the FlowVisor’s design and slicing mechanisms as well as an evaluation of how well the FlowVisor enforces isolation between slices.

The features described in the tech report have been included in the newly released FlowVisor version 0.4, including:

* preliminary bandwidth isolation between slices

* improved OpenFlow message rate limting for switch CPU isolation

* per-slice virtual topologies

Both the technical report and the new version are available from the FlowVisor’s webpage:

http://www.openflow.org/wk/index.php/FlowVisor

OpenFlow 0.9 Released

July 20th, 2009, Guido Appenzeller in Announcements, OpenFlow Blog

Today we released version 0.9 of the OpenFlow Switch Specification as well as the OpenFlow Switch Reference Implementation. You can find it on the download page or pull it directly from the public git repository.

OpenFlow 0.9 is a major step towards the 1.0 release, and it incorporates a large number of bug fixes, clarifications and new features including  failover, emergency flow entries, VLAN Priority Matching and support for ToS field re-writing. For a complete list of changes read the Release Notes or the more detailed Wiki Page.

For OpenFlow deployments, we recommend to use OpenFlow 0.8.9 for now. Nox, the NetFPGA and other OpenFlow Hardware at this point is not yet compatible with 0.9. We will post on the OpenFlow Blog as these get updated. Feedback and bug reports are highly welcome via Trac or the openflow-discuss mailing list.

This release would not have been possible without the work of (in alphabetical order) David Erickson, Glen Gibb, Brandon Heller, Mikio Hara, Bob Lantz, Justin Pettit, Ben Pfaff, Jean Tourrilhes and David Underhill, Tatsuya Yabe, Yiannis Yiakoumis as well as to the many other members of the OpenFlow community that provided valuable suggestions, feedback and testing.

Thanks to all of you!

Guido, Brandon & Mikio

OpenFlow mailing lists

November 26th, 2008, Glen Gibb in Announcements

We’ve created a couple of mailing lists for all things OpenFlow. If you’re interested in OpenFlow or are actively using OpenFlow then we encourage you to join one or more of the lists.

The new lists are:

  • OpenFlow-announce — a low-volume list for OpenFlow announcements including new versions of the specification and reference design releases
  • OpenFlow-discuss — a list for general discussion of OpenFlow related topics including deployment, use, applications, controller development

OpenFlow Test Suite v0.8.1-r2

July 8th, 2008, Guido Appenzeller in Announcements

Version 0.8.1-r2 of the OpenFlow Reference Test Suite has been added to downloads. Tests are easier to port, and require no external hardware.

OpenFlow Test Suite v0.8.1-r1

June 12th, 2008, Guido Appenzeller in Announcements

Version 0.8.1-r1 of the OpenFlow Reference Test Suite has been added to downloads. Now with instructions for Debian install.

OpenFlow Test Suite v0.8.1-r0

June 11th, 2008, Guido Appenzeller in Announcements

Version 0.8.1-r0 of the OpenFlow Reference Test Suite has been added to downloads. Now supports v0.8.1 of the OF spec.

OpenFlow NetFPGA Reference v0.2.1.2

June 8th, 2008, Guido Appenzeller in Announcements

Version 0.2.1.2 (Preview Release) of the OpenFlow reference NetFPGA implementation has been added to downloads.