Hi, Based on what I understand from your question, you want to find physical paths between any 2 nodes.In that case just run Shortest Path First on all the nodes? that should return you the physical path taken by any packet
Cheers! Durga On Sat, Apr 18, 2020 at 3:39 PM Priyatham Ganta <gantaprith...@gmail.com> wrote: > Thank you for your response Pedro, but I want to know the path, > irrespective of the flow rules. > > I would like to know the path of any packet from a source to destination > in the form of list of dpid when I want to know. > > Is that possible ? > > Thanks > Priyatham > > On Fri, Apr 17, 2020 at 10:32 PM Pedro Andres Aranda Gutierrez < > paag...@gmail.com> wrote: > >> HI, >> >> well, the approach depends on your environment. >> >> One way would be to get the topology of your network, pre-calculate >> routes and then reactively set the forwarding rules to implement the rules >> as the packet goes from switch to switch. In this case, the first packet's >> RTT may be miserable but then things improve dramatically. You can give the >> forwarding rules some timeouts and with this you may even get some benefit >> in terms of rules supported in your switch vs. rules needed in your network. >> >> You may want to take a simpler approach to start with: get the topology, >> precalculate your rules, install them in the switches w/o timeouts and >> there you are :-) >> >> Regards and keep safe and healthy, >> /Pedro A. >> >> On Fri, 17 Apr 2020 at 23:57, Priyatham Ganta <gantaprith...@gmail.com> >> wrote: >> >>> Hello, >>> >>> I would like to know the path taken by a packet in an SDN environment. >>> Is there a way I can know the list of dpid or the nodes any packet is >>> flowing through. Any idea or input is appreciated. >>> >>> Thanks >>> Priyatham >>> >> _______________________________________________ >>> Ryu-devel mailing list >>> Ryu-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/ryu-devel >> >> >>> >> >> -- >> Fragen sind nicht da um beantwortet zu werden, >> Fragen sind da um gestellet zu werden >> Georg Kreisler >> > _______________________________________________ > Ryu-devel mailing list > Ryu-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ryu-devel >
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