[ovs-discuss] OpenVSwitch - "OFPBRC_BAD_VERSION" error packet not received when there is version mismatch between stats request and stats reply

[Ben Pfaff]

On Mon, May 21, 2012 at 10:50:19AM +0000, Varun Gupta wrote:
> Switch is not notifying the controller for OFPBRC_BAD_VERSION, /*
> ofp_header.version not supported. */ when there is version mismatch
> between stats request and stats reply. The switch was resetting the
> connection and only a warning message was generated on switch in log
> (/var/log/messages) before resetting connection.

It's hard for me to consider this a serious bug, because it's a bug
in the controller to send an OpenFlow message of a version that was
not negotiated in the OpenFlow version negotiation.  I don't know why
you'd do that.