Interesting. I used Open vSwitch's ovs-ofctl dump-flows and I can see the flow. I am waiting three seconds after installing the flow before requesting the flow stats, so that should be enough time...

-Derek

On 12/01/2010 10:40 AM, Kyriakos Zarifis wrote:
Can you look at the flowtable using dpctl to verify that it is empty?
( could it be the timing? are you sending the request right after you send the flowmod?)

On Tue, Nov 30, 2010 at 5:33 PM, Derek Cormier <derek.corm...@lab.ntt.co.jp <mailto:derek.corm...@lab.ntt.co.jp>> wrote:

    Oh, and I forgot to mention that I am sending a flow stats request.


    On 12/01/2010 10:30 AM, Derek Cormier wrote:

        Hello,

        I am trying to add a flow to a switch in my Nox component.
        After the switch joins the datapath, I create a simple flow to
        test that it works:

        flow = dict()
        flow[NW_PROTO] = UDP_PROTOCOL
        self.install_datapath_flow(dpid, flow, OFP_FLOW_PERMANENT,
        OFP_FLOW_PERMANENT, [[OFPAT_OUTPUT, [0, OFPP_CONTROLLER]]])

        I then receive a flow stats reply event in my handler, but
        event.flows = [] and event.flowcount = 0. Do you know what I
        am doing wrong?

        Thank you,
        Derek



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