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Posts Tagged ‘standard’

Towards OpenFlow 0.9

September 21st, 2008, Guido Appenzeller in OpenFlow Blog

The OpenFlow v0.8.1 spec was released way back in May of 2008.  Since then, a number of vendors have joined the OpenFlow Consortium.  These implementations have identified a number of areas where the current OpenFlow spec is underspecified, inconsistent, or missing useful features.

Thanks to Justin, Ben and Brandon, we are nearing the release of OpenFlow 0.9, which will fix many bugs and provide a number of new features. Our hope is that OpenFlow 0.9 will contain all the features desired for the big OpenFlow 1.0 release, and only small changes will be described in 0.9.X spec releases.

Some of the most important new features include:

  • Vendor extensions. This is necessary to keep 3rd party implementations of OpenFlow backwards compatible while allowing vendors to implement features they want to test.
  • Better capability reporting.  Now a switch reports the features and wildcard fields it supports, for each table.
  • IP subnetting support.  This enables OpenFlow switches to act as IP routers on some commodity switches.

For a more complete list of the proposed v0.9 changes, take a look at the 0.9 release notes draft on the wiki.

OpenFlow Standard v0.8.1

May 27th, 2008, Guido Appenzeller in Announcements

Version 0.8.1 of the OpenFlow specification has been added to documents. Many message formats have changed.

OpenFlow Standard v0.5.1

March 28th, 2008, Guido Appenzeller in Announcements

Version 0.5.1 of the OpenFlow specification has been added to documents. The only substantive change is that tables no longer maintain “miss” counters.

OpenFlow Standard 0.5

March 4th, 2008, Guido Appenzeller in Announcements

Version 0.5 of the OpenFlow specification has been uploaded to the documents page.

OpenFlow Standard v0.0.2 and Reference Implementation v0.1.3

January 8th, 2008, Guido Appenzeller in Announcements

Version 0.1.3 of the reference implementation and version 0.2.2 of the specification released. Find them in downloads and documents.

OpenFlow Standard v0.2.1

December 19th, 2007, Guido Appenzeller in Announcements

Version 0.1.1 of the reference implementation and version 0.2.1 of the specification released. Find them in downloads and documents.

OpenFlow Standard v0.2 and Whitepaper

November 30th, 2007, Guido Appenzeller in Announcements

The Consortium has published a Whitepaper and Version 0.2 (Draft) of the OpenFlow Switch Specification. This version is for public comment only, and should not be used to build an OpenFlow Switch. Version 1.0 will be the first version suitable for building an OpenFlow Switch, and is scheduled for publication in early 2008.