Hi
Look at this example
<https://sourceforge.net/p/ryu/mailman/ryu-devel/thread/[email protected]/#msg34758419>
.
It was suggested by Iwase and I used it to trigger & catch event and it is
very useful.
Hope it helps ...
Kind regards
2016-03-04 0:14 GMT-08:00 俊 赵 <[email protected]>:
> Yes, I agree with you.
>
> Usually I use twisted to send and receive tcp message, and twisted is also
> driven by event.
>
> But I did not know how to integrate ryu and twisted together.
>
> So I have no idea about receiving data using tcp socket.
>
> Thanks.
>
>
> *Zhao Jun*
>
> ------------------------------
> From: [email protected]
> Date: Fri, 4 Mar 2016 16:06:58 +0800
>
> To: [email protected]
> CC: [email protected]
> Subject: Re: [Ryu-devel] how to connect to another tcp server in ryu
> application?
>
> Maybe, it concerns about network programming using python.
>
> On Fri, Mar 4, 2016 at 4:02 PM, 俊 赵 <[email protected]> wrote:
>
> Thanks for your reply.
>
> Yes, I can connect to tcp server.
>
> But I do not know how to receive the message sent from that tcp server and
> handle this message.
>
> I only know how to sending message to tcp server.
>
> So can you give me some advices?
>
> Thanks.
>
>
> *Zhao Jun*
>
> ------------------------------
> From: [email protected]
> Date: Fri, 4 Mar 2016 15:56:19 +0800
> To: [email protected]
> CC: [email protected]
> Subject: Re: [Ryu-devel] how to connect to another tcp server in ryu
> application?
>
>
> Ryu App is driven by the event. So, it depend on what you want to do when
> receiving event.
>
> For example. you can connect TCP server when receiving PACKET-IN.
>
> @set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
> def _packet_in_handler(self, ev):
> # establish TCP connection with the TCP server.
>
> On Wed, Mar 2, 2016 at 10:02 PM, 俊 赵 <[email protected]> wrote:
>
> Hi all,
>
> I write a RYU application, and several openvswitch connect to it.
>
> class OVSRouter(app_manager.RyuApp): OFP_VERSIONS =
> [ofproto_v1_3.OFP_VERSION] def __init__(self, *args, **kwargs):
> super(OVSRouter, self).__init__(*args, **kwargs)
>
>
> And I run this application using ryu-manager.
>
> At the same time, I want the ryu controller connecting to another TCP
> server, acting as a client, and receive data message from that server.
>
> I didn't know how to achieve this. Does anyone have any ideas?
>
> Thanks!
>
> *Zhao Jun*
>
>
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> --
> Shuoling Deng
> Dept. of Computer Science and Technology
> Xi'an Jiaotong University
> Xi'an, 710049, P.R. China
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>
> --
> Shuoling Deng
> Dept. of Computer Science and Technology
> Xi'an Jiaotong University
> Xi'an, 710049, P.R. China
>
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