[ovs-discuss] Starting up Inband controller

Ben Pfaff blp at ovn.org
Thu Mar 1 16:53:58 UTC 2018

On Thu, Mar 01, 2018 at 02:16:39PM +0000, Soliman Awad Alshra´a Abdullah TU Ilmenau wrote:
> Hello everyone,
> I am trying to build my topology with In-band controller, So I started running some available script
>  On the one hand, I have no problem when I use these instructions on
>  http://tocai.dia.uniroma3.it/compunet-wiki/index.php/In-band_control_with_Open_vSwitch
> (sudo mn --topo linear,5 --switch ovsk,inband=True, --controller=remote,ip=
>  when I check the disable-in-band="true" by
> ( sudo ovs-vsctl --columns=other_config list bridge | grep "disable-in-band")
> I get nothing as it is expected, and I can run the topology well.  (pingall)
> ________________________________________
> On the other hand, when I use the other topologies in (for example)
>  https://techandtrains.com/2013/10/05/in-band-controller-with-mininet-p art-2/
> or
> https://github.com/hmd1st/mn_test/blob/master/inband_delay_link.py
> I check the disable-in-band="true"
> I get  -->   other_config        : {datapath-id="0000000000000001", disable-in-band="true"}
> OVS switches does not seem to try to connect to Ryu's host and I can't do ping betwwen all hosts.
> my ovs is 2.0.2 which support Of 1.0 as default  so I uses  simple_switch.py as a controller as well sa I upgraded my ovs and tried to use the suitable controller( simple_switch_13.py ),  but nothing happens.
> >
> I know my problem might be simple, but I have no idea why I cannot start up the controller well.
> please, Could you guide me to my problem !

Well, in general, you can't expect an in-band controller to work if you
disable in-band controllers.

But OVS 2.0 is over 4 years old and you can't really expect us to
support it anyway.

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