On Thu, Nov 22, 2012 at 05:26:44PM +0200, Jarno Rajahalme wrote:
> This is the 4th patch of a series of 4 patches:
> 
> 1/4: OpenFlow 1.2 bug fixes
> 2/4: Initial OpenFlow 1.3 support
> 3/4: OF13 TUNNEL_ID support (also on OF12 protocol)
> 4/4: NXPIF_OPENFLOW13 to allow OF13 packet_in to be used over OF12 (adds 
> support for the matching flow cookie)
> 
>     Added NXPIF_OPENFLOW13, to allow OF 1.3 packet_in format to be used with 
> OF 1.2.
>     Made packet in format validation to allow NXPIF_OPENFLOW10 and NXPIF_NXM 
> only on
>     OpenFlow 1.0 protocol, and NXPIF_OPENFLOW13 on OpenFlow 1.2 protocol.
> 
> Note that OF 1.3 packet_in packets will be sent using the OF version value of 
> 1.3, even if the connection is otherwise using
> version of 1.2. Should probably add also NXPIF_OPENFLOW12 to allow the 
> controller to switch back to the normal OF12 format?

I'm not sure of the value of this.  Why not have clients connect as
OF1.3 if they need this feature?  The differences between OF1.2 and
OF1.3 are not huge.  One of my long-term goals for Open vSwitch is to
try to reduce the number of departures from the standard, and this
continues to go in the other direction.
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