Sounds unrelated to ryu, but let's go on...

On Fri, 28 Sep 2018 19:35:18 +0900,
Imen Souidene via Ryu-devel wrote:
> Hi, I created a hierarchical control plane for SDN with a central controller 
> and several local controllers.The local agent is run on ryu, and the topology 
> can be based on mininet. I followed the PARC project on github 
> (https://github.com/ppgirl/PARC) , but when i run lc_level_topo.py , it show 
> me an error that : 
> Traceback (most recent call last):
>   File "lc_level_topo.py", line 11, in <module>    LC_LEVEL_TOPO.add_node(1, 
> {'type': 'controller', 'win_dpid': [3]})TypeError: add_node() takes exactly 2 
> arguments (3 given)
> Despite , I wrote correctly

Please fix the error.

> Also ,  when i run the (ryu-manager --observe-links layer_2_switch.py) , it 
> show me : cc_agent: connection failed, maybe the central controller doesn't 
> start, retry .
> 
> 
> PLease , how can i solve it ?

This is possibly due to the above error.

--
IWAMOTO Toshihiro


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