Are you getting the "Fields ignored due to unspecified prerequisites" warning in the POX log?
-- Murphy On Dec 7, 2014, at 8:45 PM, Aaron Lam <aaronch....@mail.utoronto.ca> wrote: > Hello, > > I am trying to use the openflow_webservice component to install flows > matching nw_src and nw_dst. I run a POST command with match set for nw_src > and nw_dst. When I inspect the flow table for the switch and I try to ping > between the the src and dst, it doesn’t work however. I am wondering if I am > using the set_table properly? > > I am doing basically the same thing as this person > https://www.mail-archive.com/pox-dev%40lists.noxrepo.org/msg01221.html. > Initially i had that issue too but then I switched to the eel branch and I > passed that issue. But now I have run into an issue where it doesn’t seem > like the entries are being installed properly. I am on the eel branch. > > I am running pox with the following: > > ./pox.py log.level --DEBUG web.webcore openflow.webservice > > Then I run the following: > > curl -i -X POST -d '{"method": "set_table”, > "params": { "dpid": "00-00-00-00-00-01”, > "flows": [{"actions": [{"type": > "OFPAT_OUTPUT", "port": 1}], > "match": {"nw_src": > "10.0.0.1", "nw_dst": "10.0.0.2"}}]}, > "id": 1}’ http://192.168.56.103:8000/OF/ > > This runs successfully as I get the following response. > > HTTP/1.1 200 OK > Server: BaseHTTP/0.3 Python/2.7.4 > Date: Sun, 07 Dec 2014 23:01:50 GMT > Content-Type: application/json > Content-Length: 68 > > {"result": {"flowmod": true, "dpid": "00-00-00-00-00-01"}, "id": 1} > > Then I run the following command to see the flow table of the switch > 00-00-00-00-00-0: > > url -i -X POST -d '{"method": "get_flow_stats", "params": {"dpid": > "00-00-00-00-00-01"}, "id": 1}' http://192.168.56.103:8000/OF/ > HTTP/1.1 200 OK > Server: BaseHTTP/0.3 Python/2.7.4 > Date: Sun, 07 Dec 2014 23:01:55 GMT > Content-Type: application/json > Content-Length: 313 > > {"result": {"flowstats": [{"packet_count": 0, "hard_timeout": 0, > "byte_count": 0, "duration_sec": 4, "actions": [{"max_len": 0, "type": > "OFPAT_OUTPUT", "port": 1}], "duration_nsec": 652000000, "priority": 32768, > "idle_timeout": 0, "cookie": 0, "table_id": 0, "match": {}}], "dpid": > "00-00-00-00-00-01"}, "id": 1} > > As one can see above, in when I sent a POST request, i set “nw_dst”: > “10.0.0.2” and “nw_dst”: “10.0.0.2” but the flow table entry shows that the > match is empty. I tried pinging between h1 and h2 but the destination is > unreachable. > > Am I using the nw_src and nw_dst parameters correctly? What is the correct > manner to set them? > > Aaron Lam
