Hi, (2013/04/04 10:20), Karthik Sharma wrote: > Hi, > > I'm new to openVswitch and Ryu. There is a description about using Ryu Network > Operating System with OpenStack as Openflow controller in Ryu 1.2 > documentation. > However, this instruction is a little bit complicated for anewbie like me, > so I'm thinking about using openVswitch directly with Ryu without > OpenStack. Hence I follow the following steps. > > 1. I install Ryu using source from github. > 2. I also install openvswitch on my system. > 3. Then I setup a secure channel between ryu and the openvswitch as > mentioned in > http://osrg.github.com/ryu/doc/tls.html > > 4. sudo ovs-vsctl show gives the following output. > > df19569b-d38b-41a5-a723-fb80504cd5e5 > Bridge "br0" > Controller "127.0.0.1:6633" > Port "br0" > Interface "br0" > type: internal > ovs_version: "1.4.0+build0" > > 5. I run ryu-manager with two applications > a) simple_switch.py > b) rest.py > as shown below. > > sudo ryu-manager ryu/app/simple_switch.py ryu/app/rest.py > > The output that I get is as follows. > > [sudo] password for karthik.sharma: > loading app ryu/app/simple_switch.py > loading app ryu/app/rest.py > loading app ryu.controller.ofp_handler > creating context wsgi > creating context network > instantiating app ryu/app/rest.py > instantiating app ryu.controller.ofp_handler > instantiating app ryu/app/simple_switch.py > > My question is as follows. > > I would like to write an application that does topology discovery of > openvswitches. > > I tried running sudo ryu-manager ryu/topology/dumper.py again it gave > similar output as above. > > - this apps dumps discovery events? (what are discovery events?) Yes. Discovery events are generated by ryu/topology/switches.py, so you should run this together.
> - where does it dump it? > - do I have to trigger something inorder for the app to produce an output? > LOG.debug(). Probably it is stdout, with --verbose option of ryu-manager. Please see following link. http://sourceforge.net/mailarchive/forum.php?thread_name=1363256167-4406-1-git-send-email-yamada.hideki%40po.ntts.co.jp&forum_name=ryu-devel Thanks, YAMADA Hideki > How can I see the output? > > Kind Regards, > Karthik > ------------------------------------------------------------------------------ Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
