Hi,
On 2015年06月01日 15:09, Hm Balarama wrote: > Hi, > > Mine doesn't work with Mininet. > Which version do you use? > I downloaded github.com/osrg/ryu.git <http://github.com/osrg/ryu.git> and > installed it. Git branch is the master. > I could get link events when I run $ ryu-manager --observe-links --verbose > ryu.app.gui_topology.gui_topology > > EVENT switches->WebSocketTopology EventLinkAdd > EVENT ofp_event->switches EventOFPPacketIn > EVENT ofp_event->switches EventOFPPacketIn > EVENT switches->WebSocketTopology EventLinkAdd > EVENT switches->WebSocketTopology EventLinkAdd > EVENT ofp_event->switches EventOFPPacketIn > EVENT switches->WebSocketTopology EventLinkAdd > EVENT ofp_event->switches EventOFPPacketIn > EVENT ofp_event->switches EventOFPPacketIn > EVENT ofp_event->switches EventOFPPacketIn > > But h1 can't reach to other hosts. > In your case, was same. The same. $ sudo python test_topo.py *** Configuring hosts h1 h2 h3 *** Starting CLI: mininet> h1 ping h2 ^CPING 10.0.0.2 (10.0.0.2) 56(84) bytes of data. --- 10.0.0.2 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2016ms mininet> Because gui_topology is the sample application, installs the flow for link discovery only, but does not install the flow for the communications between hosts. If you want to discover links and enable to communicate each other at the same time, I recommend you to write your Ryu application. Thanks, Iwase > > Thanks, > Tsogbayar > > > On Mon, Jun 1, 2015 at 10:11 AM, Yusuke Iwase <[email protected] > <mailto:[email protected]>> wrote: > > Hi, > > On 2015年05月29日 17:46, Hm Balarama wrote: > > Hi Iwase, > > > > It didn't work because I used loop topology. > > s1 > > / \ > > / \ > > s2----s3 > > > > On my mininet environment, I made a looped topology, > gui_topology worked fine and I could get EventLinkAdd/EventLinkDelete > events. > > > $ sudo python test_topo.py > Unable to contact the remote controller at 127.0.0.1:6633 > <http://127.0.0.1:6633> > *** Configuring hosts > h1 h2 h3 > *** Starting CLI: > mininet> net > h1 h1-eth0:s1-eth1 > h2 h2-eth0:s2-eth1 > h3 h3-eth0:s3-eth1 > s1 lo: s1-eth1:h1-eth0 s1-eth2:s2-eth2 s1-eth3:s3-eth3 > s2 lo: s2-eth1:h2-eth0 s2-eth2:s1-eth2 s2-eth3:s3-eth2 > s3 lo: s3-eth1:h3-eth0 s3-eth2:s2-eth3 s3-eth3:s1-eth3 > c0 > mininet> > > > $ ryu-manager --observe-links --verbose ryu.app.gui_topology.gui_topology > ... > > > # input 'ifconfig s1-eth2 down' on s1: > --- > EVENT ofp_event->switches EventOFPPortStatus > EVENT ofp_event->dpset EventOFPPortStatus > EVENT switches->WebSocketTopology EventLinkDelete > EVENT switches->WebSocketTopology EventLinkDelete > DPSET: A port was modified.(datapath id = 0000000000000001, port number = > 2) > EVENT ofp_event->switches EventOFPPortStatus > EVENT ofp_event->dpset EventOFPPortStatus > DPSET: A port was modified.(datapath id = 0000000000000002, port number = > 2) > --- > > Thanks, > Iwase > > > > I'm sorry if I didn't let you know. > > In this case, what should I do? > > > > Thanks, > > Tsogbayar. > > > > > > On Fri, May 29, 2015 at 2:10 PM, Yusuke Iwase <[email protected] > <mailto:[email protected]> <mailto:[email protected] > <mailto:[email protected]>>> wrote: > > > > Hi, > > > > How about using gui_topology.py with --verbose option? > > > > $ ryu-manager --observe-links --verbose > ryu.app.gui_topology.gui_topology > > > > With --verbose option, you will get many messages, > > but please check only EventLinkAdd/EventLinkDelete events, > > when a link goes up or down. > > > > eg.) > > EVENT switches->WebSocketTopology EventLinkDelete > > EVENT switches->WebSocketTopology EventLinkDelete > > > > Thanks, > > Iwase > > > > > > On 2015年05月29日 13:54, Hm Balarama wrote: > > > Hi Iwase, > > > > > > I purposed just using Ryu's official apps. Not user's developed > one. > > > Are there anyway to test a link failure in Ryu? > > > > > > Thanks, > > > Tsogbayar. > > > > > > On Fri, May 29, 2015 at 1:23 PM, Yusuke Iwase > <[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > <mailto:[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>>>> wrote: > > > > > > Hi, > > > > > > > So, did you mean I should run like that ryu-manager > simple_switch_stp.py --observe-links? > > > > > > No, you don't have to use simple_switch_stp.py, > > > but you should write your Ryu application and > > > catch EventLinkAdd/EventLinkDelete events as followings. > > > > > > ----------------- > > > Snippet of code: > > > ----------------- > > > ... > > > from ryu.topology import api > > > from ryu.topology.event import EventLinkAdd, EventLinkDelete > > > ... > > > > > > class SampleApp(app_manager.RyuApp): > > > ... > > > @set_ev_cls(EventLinkAdd, MAIN_DISPATCHER) > > > def _link_add_handler(self, ev): > > > self.logger.info <http://self.logger.info> > <http://self.logger.info> <http://self.logger.info>('EventLinkAdd = %s', ev) > > > ... > > > > > > @set_ev_cls(EventLinkDelete, MAIN_DISPATCHER) > > > def _link_del_handler(self, ev): > > > self.logger.info <http://self.logger.info> > <http://self.logger.info> <http://self.logger.info>('EventLinkDelete = %s', > ev) > > > ... > > > ----------------- > > > > > > And start your app with --observe-links option. > > > > > > $ ryu-manager --observe-links ryu.app.sample_app > > > loading app ryu.app.sample_app > > > loading app ryu.topology.switches > > > loading app ryu.controller.ofp_handler > > > instantiating app ryu.app.sample_app of SampleApp > > > instantiating app ryu.topology.switches of Switches > > > instantiating app ryu.controller.ofp_handler of OFPHandler > > > ... > > > > > > if you input "ifconfig s1-eth2 down" on switch, your app will > show the following messages. > > > ... > > > EventLinkDelete = EventLinkDelete<Link: Port<dpid=1, > port_no=2, DOWN> to Port<dpid=2, port_no=2, LIVE>> > > > EventLinkDelete = EventLinkDelete<Link: Port<dpid=2, > port_no=2, LIVE> to Port<dpid=1, port_no=2, LIVE>> > > > ... > > > > > > > > > For more information about developing your app, > > > please refer to the Ryu-Documentation. > > > http://ryu.readthedocs.org/en/latest/developing.html > > > > > > > > > Thanks, > > > Iwase > > > > > > > > > On 2015年05月29日 12:26, Hm Balarama wrote: > > > > Thank you, Iwase. > > > > Yes, I used simple_switch_stp.py. > > > > I see timeout_check_period and others in switches.py. > > > > So, did you mean I should run like that ryu-manager > simple_switch_stp.py --observe-links? > > > > I'm sorry, I'm a newbee in Ryu. > > > > > > > > Thank you, > > > > Tsogbayar. > > > > > > > > On Fri, May 29, 2015 at 11:16 AM, Yusuke Iwase > <[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > <mailto:[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>>> > <mailto:[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > <mailto:[email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>>>>> wrote: > > > > > > > > Hi, > > > > > > > > First, what Ryu application are you using? > simple_switch_stp.py? > > > > If so, simple_switch_stp.py is one of the sample > application of Ryu. > > > > In other words, Ryu does not require to use BPDU, > > > > just performing like STP switch by using > simple_switch_stp.py. > > > > > > > > If you want to recover a link failure with Ryu, > > > > I recommend you to use ryu.topology modules with > --observe-links option of ryu-manager. > > > > https://github.com/osrg/ryu/tree/master/ryu/topology > > > > > > > > Thanks, > > > > Iwase > > > > > > > > On 2015年05月29日 10:55, Hm Balarama wrote: > > > > > Hello, > > > > > > > > > > I tested Ryu with loop topology. I used 3 switches > and those are OF enabled. > > > > > I wanted how much time does Ryu recover a link > failure when I remove cable. > > > > > So I changed DEFAULT_MAX_AGE in bpdu.py. Also I set > DEFAULT_HELLO_TIME=1. > > > > > I tested 4 times. > > > > > DEFAULT_MAX_AGE =1 and average recovery time was 74 > seconds > > > > > DEFAULT_MAX_AGE =2 and average recovery time was 72 > seconds > > > > > DEFAULT_MAX_AGE =3 and average recovery time was 71 > seconds > > > > > DEFAULT_MAX_AGE =5 and average recovery time was 74 > seconds > > > > > It seems to me a little bit strange. I don't know why. > > > > > I expected DEFAULT_MAX_AGE=1 takes very short time > than DEFAULT_MAX_AGE =2,3,5 but it doesn't. > > > > > Could you please tell me why it happened? > > > > > > > > > > Thank you, > > > > > Tsogbayar. > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Ryu-devel mailing list > > > > > [email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>> > <mailto:[email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>>> > <mailto:[email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>> > <mailto:[email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>>>> > > > > > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > > > > > > > > > > > > > _______________________________________________ > > > > Ryu-devel mailing list > > > > [email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>> > <mailto:[email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>>> > > > > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > > > > > > > > > _______________________________________________ > > > Ryu-devel mailing list > > > [email protected] > <mailto:[email protected]> > <mailto:[email protected] > <mailto:[email protected]>> > > > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > > > > > _______________________________________________ > > Ryu-devel mailing list > > [email protected] <mailto:[email protected]> > > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > > > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > ------------------------------------------------------------------------------ _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
