Luis and Jamo,
Attached is defining the controller part of my mininet script. If you would
like to full script please let me know:
c1 = RemoteController( 'c1', ip='127.0.0.1', port=6653 )
c2 = RemoteController( 'c2', ip='127.0.0.1', port=7753 )
c3 = RemoteController( 'c3', ip='127.0.0.1', port=8853 )
and I use cmap to map my switches to their respective controllers:
cmap = { 's1': c1, 's2': c1, ‘s3’: c1, 's4': c1, 's5': c1, ‘s6’: c1, 's7': c1,
's8': c1, 's9': c2, 's10': c2, 's11': c2, 's12': c2, 's13': c2, 's14': c3,
's15': c3, 's16': c3, 's17': c3, 's18': c3}
net.addController(c1)
net.addController(c2)
net.addController(c3)
From: Mohamed Abdel Metaal<mailto:m.alaa...@hotmail.com>
Sent: Thursday, February 8, 2018 2:11
To: Jamo Luhrsen<mailto:jluhr...@gmail.com>; Luis Gomez<mailto:ece...@gmail.com>
Cc: disc...@lists.opendaylight.org<mailto:disc...@lists.opendaylight.org>;
openflowplugin-dev<mailto:openflowplugin-dev@lists.opendaylight.org>
Subject: Re: [OpenDaylight Discuss] Multiple Controller implementation
Luis,
This could not be possible as all controllers in this case will connect to the
same openflow ports, RESTCONF, Jolokia ports 8081 and 8080 along with other
ports too, so the other 2 controllers will address ports which is already being
addressed by the first controller. It would only be possible to work if these
ports are changed in each of the other controllers so they don’t collide using
the same ports, eg. Openflow ports 6633 / 6653. Just to clarify, as I have
forgot, I am implementing this using my Ubuntu machine without the use of
virtual machines. That’s another question, could this be implemented using only
my local machine without virtual machines and tweaking the ports in each
OpenDaylight folder (for each controller)?
Jamo,
I am currently implementing the controllers in one machine so they have the
same address to address the controllers (which is the loopback address in my
case). So the controllers in my mininet script have the same ip address but
different openflow ports 6653, 7753 and 8853. Again, probably the same question
arises, is multiple controllers only possible to implement using different
virtual machines per controller?
Thanks 😊
P.S. I have implemented the same implementation before using Floodlight and
there was a certain number of ports, including openflow ports, that needs to be
changed. All using my local machine without the need for virtual machines.
If this is possible then it could be also a great idea to benchmark
OpenDaylight with other SDN controllers for behavior using a physically
distributed control plane.
From: Jamo Luhrsen<mailto:jluhr...@gmail.com>
Sent: Thursday, February 8, 2018 1:53
To: Luis Gomez<mailto:ece...@gmail.com>; Mohamed Abdel
Metaal<mailto:m.alaa...@hotmail.com>
Cc: disc...@lists.opendaylight.org<mailto:disc...@lists.opendaylight.org>;
openflowplugin-dev<mailto:openflowplugin-dev@lists.opendaylight.org>
Subject: Re: [OpenDaylight Discuss] Multiple Controller implementation
On 2/7/18 4:24 PM, Luis Gomez wrote:
>
>> On Feb 7, 2018, at 4:09 PM, Mohamed Abdel Metaal <m.alaa...@hotmail.com
>> <mailto:m.alaa...@hotmail.com>> wrote:
>>
>> Hello Jamo,
>>
>> Yes exactly, I have one instance of mininet running that should be connected
>> to 3 opendaylight controllers. In my
>> mininet python script i have defined that controllers should connect on
>> 6653, 7753 and 8853 openflow ports. This
>> should be somehow configured also in my opendaylight controllers for it to
>> connect. I have tried changing port numbers
>> in default(and legacy)-openflow-connection-config.xml for the 3 different
>> opendaylight controllers and ports 8081/8080
>> for jetty.xml so they don’t collide but still I get the errors and the 2
>> other controllers cannot connect to my
>> mininet instance.
Luis,
is there a config we can tweak to tell OFP which port to listen on?
Mohamed
can you tweak your mininet python script to use the actual ip addresses of your
controllers? seems that those would be different. In that case, why can't they
all be listening on 6633?
Thanks,
JamO
>> As a brief example just to make sure that my idea is clear: i run a mininet
>> instance of 6 switches where each
>> controller should only see/monitor/connect to 2 of the switches.
>
> I am not sure I full follow here: is this as simple as connect 2 switches to
> a first controller, the next 2 switches to
> a second controller and finally the last 2 switches to a third controller? if
> so there is nothing to do in controller,
> juts need to set mininet or OVS to do this, right?
>
>>
>> Thank you for your response.
>>
>> ------------------------------------------------------------------------------------------------------------------------
>> *From:* Jamo Luhrsen <jluhr...@gmail.com <mailto:jluhr...@gmail.com>>
>> *Sent:* Thursday, February 8, 2018 12:57:26 AM
>> *To:* Mohamed Abdel Metaal; disc...@lists.opendaylight.org
>> <mailto:disc...@lists.opendaylight.org>; openflowplugin-dev
>> *Subject:* Re: [OpenDaylight Discuss] Multiple Controller implementation
>>
>> adding the openflowplugin-dev list here as well.
>>
>> Mohamed,
>>
>> I don't get the impression that your OpenDaylight controllers are in a
>> clustering
>> setup. Is that correct?
>>
>> I'm not totally following what you are trying to accomplish. You have just
>> one
>> mininet instance connecting to a single IP address, but you want the switches
>> in that single mininet instance to somehow be distributed across multiple (3)
>> OpenDaylight controllers?
>>
>> Can you elaborate a little more please?
>>
>> Thanks,
>> JamO
>>
>>
>> On 2/7/18 3:38 PM, Mohamed Abdel Metaal wrote:
>> > I have a question regarding the implementation of multiple controllers
>> > using OpenDaylight.
>> > If I want to implement 3 controllers, each responsible for a certain
>> > number of nodes in the topology (so we have 3
>> > domains) which are not overlapping, how can this be implemented? I have
>> > experience with Floodlight controllers and I
>> > could implement this by changing openflow port number along with other
>> > ports in some properties file but in OpenDaylight
>> > I always get errors when I run 3 instances of controllers and only the
>> > first one gets connected to Mininet topology that
>> > I implement with the controllers defined.
>> >
>> > _______________________________________________
>> > Discuss mailing list
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