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
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