[ovs-dev] how ovs sends port-shut message to controller ?

[Ben Pfaff]

On Tue, Nov 03, 2015 at 04:02:59PM +0530, tech_kals Kals wrote:
> Just want to understand how port shut message sent by OVS to the controller
> when any one of the port admin state is set to down through CLI
> command......
> 
> As per openflow specification, when a port state is changed to down state,
> the switch should send  OFPT_PORT_STATUS message to notify the controller
> of the change.

It works for me.  When I type "ifconfig eth0 down", the controllers get
OFPT_PORT_STATUS messages.