Hi everyone, I'm relative new in the SDN world, specificaly in openflow, for that I have a some questions about the statistic data that the controller give me. My network right now have a 2 OVS (configured with openvswitch 1.7) and three host how you can see in attachment. I'm using the floodlight controller. Well, relatively about my questions are: 1- When I execute this command http://localhost:8080/wm/topology/links/json i obtained this:"src-switch": "00:00:00:1b:11:b4:16:80", "src-port": 1, "src-port-state": 0, "dst-switch": "00:00:00:02:44:a9:b5:34", "dst-port": 1, "dst-port-state": 0, "type": "internal" But I don't understand what meaning about src/dst-port-state,i.e, 0 = up or 0 = down for example? 2- When I execute this command http://localhost:8080/wm/core/controller/switches/json i obtained this information: "uplinkPorts": null, What this mean? "connectedSince": 1362594430044, "actions": 4095, "dpid": "00:00:00:1b:11:b4:16:80", "attributes": { "supportsOfppFlood": true, "supportsNxRole": true, "FastWildcards": 4194303, "supportsOfppTable": true }, "ports": [{ "currentFeatures": 130, "advertisedFeatures": 0, "supportedFeatures": 0, "peerFeatures": 0, "name": "br0", "state": 0, "portNumber": 65534, "hardwareAddress": "00:1b:11:b4:16:80", "config": 0 }, In this case I don't understand what is the meaning about currentFeatures, advertisedFeatures and supportedFeatures and why once time is 130 and other times 192 or 703, I read the openflow specification but I continue without understand.On the other hand, the state and config = 0 meaning that no physical link present and port is administrative down, I don't know why this value. Besides the tables=-1 don't have much sense to me because this parameter mean supported tables of datapath right? Finally the parameter harole = master mean that the controller was master mode? and the parameters supports OfppFlood=true, supportsNxRole=true and supportsOfppTable=true mean what? 3- The last question is how can I restart the value of counters and controller? Thanks so much for your time and you help.
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