Hi Shivaram
(and thanks Suresh!)
You mean you want to defined own stats message structure?
I think you can use OFPExperimenterMultipart (or inherit it) to describe your
own message, but also need to implement your switch to send that message.
https://github.com/osrg/ryu/blob/master/ryu/ofproto/ofproto_v1_3_parser.py#L5672
Then I don't recommend to use experimenter message way. As Suresh(knet solutions
<knetsolutio...@gmail.com>) said, how about running small "agent" application on
your switch and then calling its API (via REST, RPC or so) from your Ryu app?
Thanks,
Iwase
On 2018年03月08日 14:53, knet solutions wrote:
I think, you are trying to implement the openflow agent for the NIC card. In
my perspective ,its not related to Controller stuff.
On Thu, Mar 8, 2018 at 10:14 AM, Shivaram Mysore <shivaram.mys...@gmail.com
<mailto:shivaram.mys...@gmail.com>> wrote:
Hi Iwase,
Let me clarify the use case a little bit more.
Lets say, you run on Linux
# ethtool -S enp1s0
you will get a bunch of NIC stats. I want to wrap the same in an openflow
message and send it to a Ryu controller running my special Ryu App which
will connect to this client and
* ask for
http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPPortStatsRequest
<http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPPortStatsRequest>
* and I want to wrap the NIC stats and send response via
http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPPortStatsReply
<http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ryu.ofproto.ofproto_v1_3_parser.OFPPortStatsReply>
So, I want to use the Ryu Openflow API to do this.
Does this help?
Thanks
/Shivaram
On Wed, Mar 7, 2018 at 8:27 PM, Iwase Yusuke <iwase.yusu...@gmail.com
<mailto:iwase.yusu...@gmail.com>> wrote:
Hi Shivaram,
You mean you need to send some (stats?) message from Ryu controller to
another
Ryu controller, right?
Hmmmm... Ryu implements the OpenFlow parsers as "Controller side",
parsers for
"from switch" messages have no "serialize()" method (some of messages
have both
"serialize()" and "parser()" for unit tests though). So you need to
implement
"serialize()" method on the stats "reply" message parser class to send
them to
another controller.
Thanks,
Iwase
On 2018年03月08日 13:02, Shivaram Mysore wrote:
Hi,
I am looking for example Ryu API usage where Ryu framework is used
to construct a Openflow message sent to Ryu controller.
Use case is that I just want to send say, network statistics to Ryu
Openflow controller where I have a Ryu application that is listening
to Openflow stats and meter messages.
Any pointers?
Thanks
/Shivaram
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/*
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