Hi Marvin,
one approach to do this is to catch dpset.EventDP events like in
this example:
@set_ev_cls(dpset.EventDP)
def dispatcher_change(self, ev):
"""
For monitoring, print out the status of the connected datapath.
Helpful for recognizing when Mininet was terminated and has left
over
switch instances that create problems.
:type ev: dpset.EventDP
:param ev: The event
"""
LOG.info('%s: dpset change for %s: enter=%s', __name__,
ev.dp.id, ev.enter)
For reference see my similar question from february:
http://comments.gmane.org/gmane.network.ryu.devel/1868
2013/6/22 Marvin Dsouza <[email protected]>
> Hi,
>
>
> I want to know if it is possible to send a custom packet from the
> controller to the switch and ask the switch to flood this to all other
> switches. This would be something similar to STP BPDU being transmitted to
> all neighbors.
>
> I have been unable to do this so far. I want to send a packer from
> controller to switch when the switch has successfully reached the
> MAIN_DISPATCHER phase. I am using the ofp_event.EventOFPStateChange.
>
> Im stuck on this , any help is appreciated.
>
> --
> Thanks and Regards,
>
> *Marvin D'souza*
> 408-429-0257
>
>
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