Hi,
Thank you for the reply.
You are right, I looked at a trace in wireshark, and looks like the
controller is sending a OFPFetaturesRequest (04 05 00 08 8a 4c 32 2d) to
the switch, but the switch does not reply to this message. Does this mean
that the switch is faulty? is there something wrong with the openflow image
on the switch?
Thanks,
-Sachin.
On Tue, Sep 17, 2013 at 2:01 AM, YAMAMOTO Takashi <[email protected]>wrote:
> hi,
>
> > Hi,
> >
> > I am new to RYU controller, so kindly pardon me if this is a basic
> > question.
> >
> > I am using the Ryu controller and a switch to setup a basic ping
> experiment
> > where I want to verify that two laptops connected to the same openflow
> > switch are able to ping each other.
> >
> > I have installed OpenFlow 1.3 on a Linksys WRT54G router. I have
> installed
> > RYU controller on my laptop. I connect my laptop to port 4 on the switch,
> > and another laptop to port 2 on the switch.
> >
> > Then I start the controller, and load the ofctl_rest.py app.
> >
> > When I connect the switch to the controller, I get a log line saying that
> > the switch has connected successfully. I am also able to verify that ping
> > from my laptop to another laptop (and vice-versa) works fine.
> >
> > Now I want to look at the stats of the switch, so I do
> >
> > curl "http://127.0.0.1:8080/stats/switches";
> >
> > but this returns me an empty json response []. Since I have at least 1
> > switch connected to the controller, I expect at least some output.
> >
> > I also look at the controller and it has the log line
> > 127.0.0.1 - - [15/Sep/2013 17:41:25] "GET /stats/switches HTTP/1.1" 200
> 109
> > 0.004117
> > so I know that my request was correct.
> >
> > I am not able to understand what am I doing wrong, so kindly help.
> >
> > If it helps in answering, I am pasting the entire controller output
> below -
> >
> > skulkrn2@skulkrn2:~/RYU/ryu/ryu/app$ ryu-manager --verbose ofctl_rest.py
> > loading app ofctl_rest.py
> > loading app ryu.controller.ofp_handler
> > creating context dpset
> > creating context wsgi
> > instantiating app ryu.controller.ofp_handler
> > instantiating app ofctl_rest.py
> > BRICK dpset
> > CONSUMES EventOFPPortStatus
> > CONSUMES EventOFPStateChange
> > CONSUMES EventOFPSwitchFeatures
> > BRICK ofp_event
> > PROVIDES EventOFPFlowStatsReply TO {'RestStatsApi': set(['main'])}
> > PROVIDES EventOFPPortStatus TO {'dpset': set(['main'])}
> > PROVIDES EventOFPPortStatsReply TO {'RestStatsApi': set(['main'])}
> > PROVIDES EventOFPDescStatsReply TO {'RestStatsApi': set(['main'])}
> > PROVIDES EventOFPStateChange TO {'dpset': set(['main', 'dead'])}
> > PROVIDES EventOFPSwitchFeatures TO {'dpset': set(['config'])}
> > CONSUMES EventOFPPortDescStatsReply
> > CONSUMES EventOFPErrorMsg
> > CONSUMES EventOFPSwitchFeatures
> > CONSUMES EventOFPEchoRequest
> > CONSUMES EventOFPHello
> > BRICK RestStatsApi
> > CONSUMES EventOFPFlowStatsReply
> > CONSUMES EventOFPDescStatsReply
> > CONSUMES EventOFPPortStatsReply
> > (7504) wsgi starting up on http://0.0.0.0:8080/
> > connected socket:<eventlet.greenio.GreenSocket object at 0xa4ff3ec>
> > address:('192.168.1.1', 36738)
> > hello ev <ryu.controller.ofp_event.EventOFPHello object at 0xa4ff6ac>
> > move onto config mode
> > 127.0.0.1 - - [15/Sep/2013 17:41:25] "GET /stats/switches HTTP/1.1" 200
> 109
> > 0.004117
>
> probably your switch didn't reply to OFPFeaturesRequest.
>
> YAMAMOTO Takashi
>
> >
> > And here is the command output -
> >
> > skulkrn2@skulkrn2:~$ curl "http://127.0.0.1:8080/stats/switches";
> > []skulkrn2@skulkrn2:~$
> >
> >
> > Thanks,
> > -Sachin.
>
------------------------------------------------------------------------------
LIMITED TIME SALE - Full Year of Microsoft Training For Just $49.99!
1,500+ hours of tutorials including VisualStudio 2012, Windows 8, SharePoint
2013, SQL 2012, MVC 4, more. BEST VALUE: New Multi-Library Power Pack includes
Mobile, Cloud, Java, and UX Design. Lowest price ever! Ends 9/20/13.
http://pubads.g.doubleclick.net/gampad/clk?id=58041151&iu=/4140/ostg.clktrk
_______________________________________________
Ryu-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ryu-devel
