hi,

> Hi, I have a question of ryu topology
> 
> 
> 1.After the ryu get the topology information(including the 
> ports,links,switches etc.) ,how does it store them and how can I read them?  
> I read the code of switchs.py(ryu/topology/switches.py). And I didn't find 
> how to store them.

it's just kept in-memery.

> 
> 
> 
> 
> 2.The gui_topology (ryu/app/gui_topology). Where does it get the topology 
> information?

although i'm not familiar with it, iirc it uses websocket to
communicate with ryu.app.ws_topology, which is basically a proxy for
ryu.topology.switches.

YAMAMOTO Takashi

> 
> 
> Very thanks for your help!

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