Thanks for the suggestions, I was able to see an Openflow 1.4 PacketOut message in Wireshark from tcpdump and a TCP message from port 6633 to port 49020. And there were no error messages in Ryu logs when verbose mode is enabled.
But still, `n_packets=0, n_bytes=0` for all the tables out there. So the packet doesn't actually hit the switch. Do you have any ideas why this might be happening? Thanks again for your help. Best, Martin On Thu, Aug 15, 2019 at 6:19 AM Yusuke Iwase <iwase.yusu...@gmail.com> wrote: > Hi, > > First, please verify whether the packets you sent ware forwarded or not. > For example, tcpdump or wireshark are useful to check it. Also please > confirm the log messages with log-level=debug. "ryu-manager --verbose" > option should work to set log-level. With this option, please check > whether any error message will be output or not. > > Regards, > Iwase > > On 2019/08/14 13:34, Martin Mirakyan wrote: > > Thanks! > > > > I'm trying to do as you suggested, but interestingly whenever I execute > > `ovs-ofctl dump-flows gtp_br0` I see that all the tables have > > `n_packets=0, n_bytes=0`. So, as far as I understand, the PacketOut is > > getting called but that doesn't reach the switch. Do you have any > > suggestions on what might be the problem? > > > > Thanks again for your time. > > > > Best, > > Martin > > > > On Tue, Aug 13, 2019 at 8:58 PM Yusuke Iwase <iwase.yusu...@gmail.com > > <mailto:iwase.yusu...@gmail.com>> wrote: > > > > Hi, > > > > Yes, you can send the Packet-Out messages without any Packet-In > > messages, but it is required to confirm that Ryu and your switch are > > connected and "datapath" instance for the target switch is given. > > > > If you need to send a Packet-Out message at the initialization step, > > how about sending the message in "switch_features_handler"? > > > > > https://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPSwitchFeatures > > > > This handler should be invoked at the initialization step for the > > target switch and "datapath" instance will be given. > > > > Regards, > > Iwase > > > > > > 2019年8月14日(水) 3:08 Martin Mirakyan <mirakyanmar...@gmail.com > > <mailto:mirakyanmar...@gmail.com>>: > > > > Dear Ryu developer support team, > > > > Is it possible to send a packet to the switch from a Ryu app > > without having any kind of PacketIn events? I want to initiate a > > packet-send from a Ryu app so that the trigger of the event is > > the Ryu app itself not something external. > > > > I've tried to do (in `def start`): > > > > datapath.send_packet_out(in_port=ofp.OFPP_LOCAL, > > actions=[], > > data=pkt.data) > > > > > > But when I print `ovs-ofctl dump-flows gtp_br0` all the tables > > show n_packets=0 (they aren't 0 if I initiate traffic not from a > > Ryu app). > > > > Is there something I might be missing? > > > > Thanks. > > Best, > > Martin > > _______________________________________________ > > Ryu-devel mailing list > > Ryu-devel@lists.sourceforge.net > > <mailto:Ryu-devel@lists.sourceforge.net> > > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > >
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