Hello everyone, I´m using mininet and POX and I have two questions: II) How do I add a flow_mod without being involved in an event? I want to install proactively rules in the switches, but I only have achieved this when listening events. I didn't find any such thing on Internet. When I make simple applications like the one below, it works, but I need to install rules proactively. (Using: sudo mn --topo single,3 --mac --switch ovsk --controller remote) .... class Simples (object): def __init__ (self): core.openflow.addListeners(self) def _handle_ConnectionUp (self, event): self._install(event.connection.dpid,1,(2,3)) self._install(event.connection.dpid,2,(1,3)) self._install(event.connection.dpid,3,(1,2)) def _install(self,switch,in_port,out_port): msg = of.ofp_flow_mod() match = of.ofp_match() match.in_port = in_port msg.match = match msg.idle_timeout = 0 msg.hard_timeout = 0 for i in range(len(out_port)): msg.actions.append(of.ofp_action_output(port = out_port[i])) core.openflow.sendToDPID(switch,msg) def launch (): core.registerNew(Simples)
II)How do I add a rule which sends a flow to two or more ports? Using dpctl just put the ports and it works well (e.g. in_port=2,actions=output:1,output:3), and in a application, how would I do that? I tried as above, which works weel when I have two ports, but when I need to install rules that sends flows to one and more ports together : ... self._install(event.connection.dpid,2,(1,3)) self._install(event.connection.dpid,1,2)) ... it doesn't work: File "/home/mininet/pox/pox/lib/revent/revent.py", line 234, in raiseEventNoErrors return self.raiseEvent(event, *args, **kw) File "/home/mininet/pox/pox/lib/revent/revent.py", line 281, in raiseEvent rv = event._invoke(handler, *args, **kw) File "/home/mininet/pox/pox/lib/revent/revent.py", line 159, in _invoke return handler(self, *args, **kw) File "/home/mininet/pox/ext/swbasico2.py", line 36, in _handle_ConnectionUp self._install(event.connection.dpid,3,1) File "/home/mininet/pox/ext/swbasico2.py", line 46, in _install for i in range(len(out_port)): TypeError: object of type 'int' has no len() Please, could you help me with that? Many thanks in advance, Yona Lopes -- Esta mensagem foi verificada pelo sistema de antivírus e acredita-se estar livre de perigo.
