Hey Haleema,
thank you for your reply!
You are right, the nodes were not connected, that is why I tried to
create a learning switch as before in the tutorial via
controller ptcp:
or
controller ptcp:6634
but the first one didn't create a functioning learning switch ( pinging
didn't work, contrary to when running without the '--switch user' option)
and the latter gave me the error message
Sep 10 00:00:15|00001|vconn_tcp|ERR|ptcp:6634: bind: Address
already in use
Sep 10 00:00:15|00002|controller|ERR|ptcp:6634: connect: Address
already in use
.
What has worked was manually adding flows between h1 and h3.
Why doesn't the learning switch work anymore or how can I get it to work
with '--switch user' enabled?
The tutorial didn't say anything about why that wouldn't work.
Thank you
Alex
On 09/08/2015 10:32 AM, Haleema Sadia wrote:
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
<mailto: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
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