You are right Murphy, in the case of simplerouting, I receive error messages by all switches along the path except for the first (as it is the only having a non empty buffer-id for that packet). I didn't know that those OF errors could be ignored.
I solved also the question for the send_openflow_packet() instruction. Since the reason of my packet-in events is "explicitely send to controller", then packets are never buffered in switches. However I've a little question more: When I configure the action OFPP_CONTROLLER using ofp_action, is there a way to tell the switch to send the whole packet to the controller, using the ofp_action::set_action_output()? Thank you very much 2011/10/17 Murphy McCauley <jam...@nau.edu> > Assuming you're installing a route along multiple switches, all of them > except maybe one should probably have an empty (0xffffffff) buffer_id. This > doesn't seem like it should be the problem. > > I can't even hazard a guess without knowing more about the situation. > > What version of NOX are you running? > What kind of switch? > What does the NOX log show? > Can you provide a capture of the OpenFlow traffic between a switch that > sends an error and the controller? > > -- Murphy > > On Oct 17, 2011, at 6:33 AM, andrea simeoni wrote: > > > Hi guys, > > > > I'm trying to run the simplerouting component, and found that when > installing the route it receives "Malformed packet error" messages back from > the switches. > > The same happens when calling send_openflow_packet(..). If i go in > wireshark to analyse the controller->switches openflow packets, I find that > the field buffer-id has "None" value in both cases. > > > > Any suggestions? How can I make things working properly? > > > > -- > > Andrea Simeoni > > _______________________________________________ > > nox-dev mailing list > > nox-dev@noxrepo.org > > http://noxrepo.org/mailman/listinfo/nox-dev > > -- Andrea Simeoni
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