Afer create flow message successly, how to send it to specific DataPath?

harcy — Mon, 15 Sep 2014 14:48:41 GMT

Hi,ALL!

Where's the problem with below codes? The codes can't send flow message to specific DataPath! Why function "sendFlowMode" return null? How can i send flow to specific DataPath?

// Construct OfmMutableFlowMod

OfmMutableFlowMod mod = (OfmMutableFlowMod) MessageFactory .create(pv, MessageType.FLOW_MOD);

// Assemble the match fields

// Add the values to flow mod

//Convert to Immutable

OfmFlowMod flow = (OfmFlowMod)mod.toImmutable();

…

//Call the method, below codes don't work!

DataPathId dpid=DataPathId.valueof("00:03:9c:b6:54:cb:c6:80");

ControllerService cs =new ControllerServiceAdapter();

MessageFuture mf=cs.sendFlowMod(flow,dpid); //return mf is null

Re: Afer create flow message successly, how to send it to specific DataPath?

sdnindia — Fri, 19 Sep 2014 06:47:41 GMT

Hello harcy,

Since sendFlowMod() function is returning null so please check if the argument for this function i.e. flow as well as dpid have proper values.

As per Programming guide page 31 you can use

private ControllerService cs = ...;

You can have private static ControllerService mControllerService; in your class and initialize that member and call sendFlowMod function.

If you still face the issue please share the exact code for flow creation and for dpid initialization.

Thanks,

HP SDN Team

topic Afer create flow message successly, how to send it to specific DataPath? in Software Defined Networking

Afer create flow message successly, how to send it to specific DataPath?

Re: Afer create flow message successly, how to send it to specific DataPath?