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[mininet-discuss] Help reg. error - Unable to contact the remote controller

Radhika Hirannaiah radhikamh at gmail.com
Tue Mar 24 21:01:34 PDT 2015


Hi Kali,

Thanks for your reply. I have installed openflow plugin-services feature.
Also, opendaylight is running before I run Mininet. I am still getting the
same error message.

Thanks,
Radhika

On Tue, Mar 24, 2015 at 8:49 PM, Kaliyaperumal Ramalingam <rkaliss at gmail.com
> wrote:

> Hi,
>
> I had the same issue last week.
> You need to bringup the open flow plugin service in the opendaylight
> command prompt. Did you bring up the opendaylight ? Otherwise you have to
> install and bringup the open daylight. Once it is up, you will get command
> prompt. There you have to run the feature::install openflow plugin-services
> on the prompt. I don't remember the exact syntax but u can Google it to
> bring up openflow plugin in opendaylight. If u still need the syntax, let
> me know. I can provide the syntax once I go to offc.
>
> Thanks
> Kali
> On Mar 25, 2015 8:55 AM, "Radhika Hirannaiah" <radhikamh at gmail.com> wrote:
>
>> Hello,
>>
>> I am trying to use Mininet to connect to OpenDaylight controller.
>> Whenever I run Mininet, it says Unable to contact the remote controller.
>> However when I check dump-flows, it shows it is connected to the
>> controller.
>>
>> Can you please check the output below and help me why Mininet is not able
>> to connect to the controller? And how to fix this issue.
>> Thanks for help in advance.
>>
>> mn --topo=tree,2 --mac --switch ovsk
>> --controller=remote,ip=10.125.136.40, protocols=OpenFlow13
>> *** Creating network
>> *** Adding controller
>> Unable to contact the remote controller at 10.125.136.40:6633
>> *** Adding hosts:
>> h1 h2 h3 h4
>> *** Adding switches:
>> s1 s2 s3
>> *** Adding links:
>> (h1, s2) (h2, s2) (h3, s3) (h4, s3) (s1, s2) (s1, s3)
>> *** Configuring hosts
>> h1 h2 h3 h4
>> *** Starting controller
>> *** Starting 3 switches
>> s1 OVSswitch opts:
>> s2 OVSswitch opts:
>> s3 OVSswitch opts:
>>
>> *** Starting CLI:
>> mininet> pingall
>> *** Ping: testing ping reachability
>> h1 -> X X X
>> h2 -> X X X
>> h3 -> X X X
>> h4 -> X X X
>> *** Results: 100% dropped (0/12 received)
>> mininet> dump-flows
>> <Host h1: h1-eth0:10.0.0.1 pid=24099>
>> <Host h2: h2-eth0:10.0.0.2 pid=24100>
>> <Host h3: h3-eth0:10.0.0.3 pid=24101>
>> <Host h4: h4-eth0:10.0.0.4 pid=24102>
>> <OVSSwitch s1: lo:127.0.0.1,s1-eth1:None,s1-eth2:None pid=24110>
>> <OVSSwitch s2: lo:127.0.0.1,s2-eth1:None,s2-eth2:None,s2-eth3:None
>> pid=24115>
>> <OVSSwitch s3: lo:127.0.0.1,s3-eth1:None,s3-eth2:None,s3-eth3:None
>> pid=24120>
>> <RemoteController c0: 10.125.136.40:6633 pid=24092>
>>
>> mininet> dpctl dump-flows s1
>> *** s1
>> ------------------------------------------------------------------------
>> ovs-ofctl: field s1 missing value
>> *** s2
>> ------------------------------------------------------------------------
>> ovs-ofctl: field s1 missing value
>> *** s3
>> ------------------------------------------------------------------------
>> ovs-ofctl: field s1 missing value
>> mininet>
>>
>> Thanks,
>> Radhika
>>
>>
>> _______________________________________________
>> mininet-discuss mailing list
>> mininet-discuss at lists.stanford.edu
>> https://mailman.stanford.edu/mailman/listinfo/mininet-discuss
>>
>>
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