I guess Opendaylight implement STP, so there will be no broad storm in this
network.
You can try "simple_switch_stp" app, it implement STP.
--
Yi
2015-07-30 17:25 GMT+08:00 _ _ <krzysiek.zalew...@gmail.com>:
> Question is why?.
> Earlier I used opendaylight controller and works fine with this topology.
>
>
> On 7/30/15, 牧紫星 <350959...@qq.com> wrote:
> > broadstorm。
> >
> > ---原始邮件---
> > 发件人: "_ _"<krzysiek.zalew...@gmail.com>
> > 发送时间: 2015年07月30日 17:13:17
> > 收件人: "ryu-devel"<ryu-devel@lists.sourceforge.net>;
> > 主题: [Ryu-devel] Ryu controller have problem with forward packets
> intopology
> > with two links between switches
> >
> >
> > Welcome
> > Ryu controller have problem with forward packets in topology with two
> > links between switches. Below simple topology and logs from
> > controllers. Maybe you know how to solve this?
> >
> > ---
> > mininet topology
> > ---
> > """Custom topology example
> >
> > Two directly connected switches plus a host for each switch:
> >
> > host --- switch === switch --- host
> >
> > Adding the 'topos' dict with a key/value pair to generate our newly
> defined
> > topology enables one to pass in '--topo=mytopo' from the command line.
> > """
> > from mininet.topo import Topo
> > class MyTopo( Topo ):
> > "Simple topology example."
> > def __init__( self ):
> > "Create custom topo."
> > # Initialize topology
> > Topo.__init__( self )
> > # Add hosts and switches
> > leftHost = self.addHost( 'h1' )
> > rightHost = self.addHost( 'h2' )
> > leftSwitch = self.addSwitch( 's3' )
> > rightSwitch = self.addSwitch( 's4' )
> > # Add links
> > self.addLink( leftHost, leftSwitch )
> > self.addLink( leftSwitch, rightSwitch )
> > self.addLink( leftSwitch, rightSwitch )
> > self.addLink( rightSwitch, rightHost )
> > topos = { 'mytopo': ( lambda: MyTopo() ) }
> > ---
> > mininet test ping fail
> > ---
> > mininet> pingall
> > *** Ping: testing ping reachability
> > h1 -> X
> > h2 -> X
> > *** Results: 100% dropped (0/2 received)
> >
> > ---
> > ryu log
> > ---
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 1
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 1
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 3
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 3
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 3
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 1
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 1
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 1
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 3
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > EVENT ofp_event->SimpleSwitch13 EventOFPPacketIn
> > packet in 3 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 3
> > packet in 4 9a:ba:d1:da:57:ab ff:ff:ff:ff:ff:ff 2
> >
> > --
> > Krzysiek
> >
> >
> ------------------------------------------------------------------------------
> > _______________________________________________
> > Ryu-devel mailing list
> > Ryu-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
>
> --
> Krzysiek
>
>
> ------------------------------------------------------------------------------
> _______________________________________________
> Ryu-devel mailing list
> Ryu-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
--
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab
------------------------------------------------------------------------------
_______________________________________________
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel
