Did you check the flow entries? You can list them by 'sudo ovs-ofctl dump flows' .. it is probably because the nodes are not connected.
On Tue, Sep 8, 2015 at 1:29 AM, Alexander Rehbein < a.rehb...@mailbox.tu-berlin.de> wrote: > Hi, > > I've been successful following the steps until "Benchmark Controller > w/iperf". > > There, the first 'iperf' command works as one would expect. > > But after exiting and creating the switch in userspace via > > sudo mn --topo single,3 --mac --controller remote --switch user > > I'm stuck. > > The tutorial doesn't state anything about adding flows or proceeding as > before. > So I tried 'iperf' right after creating the mininet topology as above. > And obviously, since no flows have been created, this happens: > > mininet> iperf > *** Iperf: testing TCP bandwidth between h1 and h3 > Waiting for iperf to start up...Waiting for iperf to start > up...Waiting for iperf to start up...Waiting for iperf to start > up...Waiting for iperf to start up...Waiting for iperf to start up... ... > > you get the idea. > But running > controller ptcp: > in a console prior to this doesn't help, either ( the same outputs result > on running iperf). > > Also, > > $ sudo controller ptcp:6634 > Sep 07 22:26:30|00001|vconn_tcp|ERR|ptcp:6634: bind: Address already > in use > Sep 07 22:26:30|00002|controller|ERR|ptcp:6634: connect: Address > already in use > controller: no active or passive switch connections > > and the same happens with port-number 6635, for example. > > What am I supposed to do? > I don't think the tutorial is clear enough, if not faulty. > > I'd be glad if somebody helped me... > > Regards > Alex > > _______________________________________________ > openflow-discuss mailing list > openflow-discuss@lists.stanford.edu > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss >
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