Hi Iwase, and thanks for your answer

So, It was what I thought. But in case I would like to create flow tables, the 
only way to do it, is by using the OFPTableFeaturesStatsRequest class to send 
the request, and use  the OFPTableFeaturesStats class to create the body. To Do 
all this process has to be done from scratch, or is there any function that 
take a json file to generate the body of the request? (because I saw some json 
files on the folder "ryu/test/unit/ofproto_13" with the structure of the 
OFPTableFeaturesStatsRequest object).

Regards
Marco Rojas

-----Original Message-----
From: Yusuke Iwase [mailto:iwase.yusu...@gmail.com] 
Sent: Thursday, September 10, 2015 6:46 PM
To: Rojas, Marco Ney
Cc: ryu-devel@lists.sourceforge.net
Subject: Re: [Ryu-devel] Question about pipeline

Hi Marco,

On 2015年09月11日 08:21, Rojas, Marco Ney wrote:
> Hi, I’m Marco and nice to meet you
> 
>  
> 
> I’ve been using Ryu SDN framework to program an app that will be connected to 
> an OpenFlow switch (using OpenFlow version 1.3). But, I got some question 
> that I need to answer  to go on, and I was hoping that you could help me.
> 
>  
> 
> After see all the examples incorporated on the Ryu’s last version, I realized 
> that no one of them create or modify the pipeline. So I was asking myself, if 
> do I have to assume that the pipeline is already created before execute any 
> example?  Because the gre_tunnel.py example declare an array called 
> FLOW_TABLE, which contains the table ids of the pipeline, but in no place 
> it’s use to create tables.  
> 
>  
> 
> I mean, do I have to configure the pipeline manually, or does Ryu configure 
> it automatically?

Ryu does not get or maintain the flow table entries automatically.
In case of the gre_tunnel.py example, FLOW_TABLES just stores the table_id of 
the flow table on the switches which are the targets to send FlowMod messages.

Thanks,
Iwase

> 
>  
> 
> Thank you and regards
> 
> Marco Rojas
> 
>  
> 
>  
> 
>  
> 
>  
> 
> 
> 
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