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[mininet-discuss] Controlling

Bob Lantz rlantz at
Wed May 23 23:53:56 PDT 2012

Miniedit is mainly intended as a demonstration rather than a full-featured application, but you are welcome to enhance it! 

1) miniedit currently uses the OpenFlow reference controller.
Have you changed it somehow to use RemoteController() instead of Controller()?
In any case, I would test your NOX-based controller outside of miniedit to make sure that it works.

2) Currently miniedit does not have a save (or load) function, but you could add one! I would recommend saving the topology you create as Python code (i.e. a Topo() subclass) so that you can easily reuse it.

3) In current Mininet, datapath ID uniquely identifies a switch to its controller; in the current Topo() implementation it also encodes a default IP address for a hosts's default interface. This is not an ideal design and will probably be changed to something better.


On May 23, 2012, at 6:50 PM, Salman Malik wrote:

> Hi Guys,
> One problem and three questions:
> Problem:
> 1) I made a simple network in miniedit (two host and one switch) and ran the nox controller. Afterwards I ran the network itself. Though switch seems to be registering with the controller, I am unable to ping between hosts and am getting unknown host error.
> Questions:
> 1) How to solve the above problem?
> 2) Is there a possibility of saving the network that I make via miniedit ?
> 3) I am a little confused about the term datapathid. Does it identify the connection between the controller and each switch it is controlling ?
> Thanks,
> Salman
> _______________________________________________
> mininet-discuss mailing list
> mininet-discuss at

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