If you want to do it yourself, just monitor datapath_join events. These are fired whenever a switch connects, and the event object holds the dpid of the switch. Store these in a list.
Or you can just make use of the topology component, which does pretty much exactly this (along with some other stuff), and then has a method to get a list of all connected switches. Hope that helps. -- Murphy On Jul 23, 2011, at 11:04 PM, ali ahmad wrote: > hi! > i am using multiple switches with a single controller than if i want > to flood the message at all the ports of all the switches than how would i > know > that what are the dpids of the switches. like i have to call this fuction to > flood the message > on all the switches. > > def send_openflow(self, dp_id, buffer_id, packet, actions, > inport=openflow.OFPP_CONTROLLER): > """ > Sends an openflow packet to a datapath. > > This function is a convenient wrapper for send_openflow_packet > and send_openflow_buffer for situations where it is unknown in > advance whether the packet to be sent is buffered. If > 'buffer_id' is -1, it sends 'packet'; otherwise, it sends the > buffer represented by 'buffer_id'. > > dp_id - datapath to send packet to > buffer_id - id of buffer to send out > packet - data to put in openflow packet > actions - list of actions or dp port to send out of > inport - dp port to mark as source (defaults to Controller > port) > _______________________________________________ > nox-dev mailing list > nox-dev@noxrepo.org > http://noxrepo.org/mailman/listinfo/nox-dev
_______________________________________________ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
