> On Nov 15, 2015, at 9:35 PM, Sree Vidya S D <vidya...@gmail.com> wrote: > > Hey, > > Snap of *sudo ovs-dpctl show *output for a random topology > > > system@ovs-system: > lookups: hit:2069 missed:2861 lost:0 > flows: 0 > masks: hit:7849 total:1 hit/pkt:1.59 > port 0: ovs-system (internal) > port 1: s38 (internal) > port 2: s38-eth1 > port 3: s38-eth2 > port 4: s38-eth3 > port 5: s45 (internal) > port 6: s45-eth1 > *port 7: s45-eth2* > port 8: s45-eth3 > port 9: s36 (internal)
Those "ovs-dpctl" commands are showing you the datapath port numbers, not the OpenFlow ones. You need to use a command like "ovs-ofctl show" to see the OpenFlow port numbers. > Is there any way to detect from the floodlight controller what will be the > openflow pot number I don't know enough about FloodLight to say whether it exposes that information, but it's available through OVSDB. You can use an OVSDB CLI utility like ovs-vsctl to get that information. Here's the relevant information from the FAQ: -=-=-=-=-=-=-=-=-=- Q: How can I figure out the OpenFlow port number for a given port? A: The OFPT_FEATURES_REQUEST message requests an OpenFlow switch to respond with an OFPT_FEATURES_REPLY that, among other information, includes a mapping between OpenFlow port names and numbers. From a command prompt, "ovs-ofctl show br0" makes such a request and prints the response for switch br0. The Interface table in the Open vSwitch database also maps OpenFlow port names to numbers. To print the OpenFlow port number associated with interface eth0, run: ovs-vsctl get Interface eth0 ofport You can print the entire mapping with: ovs-vsctl -- --columns=name,ofport list Interface but the output mixes together interfaces from all bridges in the database, so it may be confusing if more than one bridge exists. In the Open vSwitch database, ofport value -1 means that the interface could not be created due to an error. (The Open vSwitch log should indicate the reason.) ofport value means that the interface hasn't been created yet. The latter is normally an intermittent condition (unless ovs-vswitchd is not running). -=-=-=-=-=-=-=-=-=- --Justin _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
