Thank you for suggestion.
I would like avoid stp. Openflow protocol can work in network without stp.
Maybe is other solution?
On 7/30/15, Yi Tseng <a86487...@gmail.com> wrote:
> 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
>>
>>
>> ------------------------------------------------------------------------------
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>> 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
>
--
Krzysiek
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