On Mon, 24 Sep 2018 17:16:27 +0900, Lorenzo Mignone wrote: > > Hi, I am trying to use Ryu REST applications (ofctl_rest and rest_topology) > in my exam project. > I am not using mininet but an alternative called Kathara that was developed > at my university and it is based on docker. > > Whenever I use rest_topolgy /v1.0/topology/links and /v1.0/topology/hosts > endpoints I get back an empty array as answer. > Any other request does work (/stats/switches, /stats/desc/<dpid>, > /v1.0/topology/switches, ...). > So, I suppose the problem is thath the controller does not manage to get > links between switches. > > I edited ryu/topology/event.py to print switches and links when > EventSwitchBase and EventLinkBase are called and then I run this command: > *ryu-manager --observe-links --install-lldp-flow > <path-to-ryu>/app/rest_topology.py <path-to-ryu>/app/ofctl_rest.py* > > The lines I added to print switches and links produced these lines only: > > > *Switch<dpid=196548594862159, Port<dpid=196548594862159, port_no=1, DOWN> > Port<dpid=196548594862159, port_no=2, DOWN> Port<dpid=196548594862159, > port_no=3, DOWN> >Switch<dpid=217841702508866, Port<dpid=217841702508866, > port_no=1, DOWN> Port<dpid=217841702508866, port_no=2, DOWN> > >Switch<dpid=56026200183617, Port<dpid=56026200183617, port_no=1, DOWN> > Port<dpid=56026200183617, port_no=2, DOWN> Port<dpid=56026200183617, > port_no=3, DOWN> >* > > This information is right but links have not ben printed, so I run the same > command with the original event.py file and the *--verbose *option and I > got this: >
I guess LLDP packets are not generated or delivered for some reason. Could you confirm that? -- IWAMOTO Toshihiro _______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel
