Hi,
I could not reproduce the problem again.
I experimented in the following procedures:
1) run mininet
# sudo mn --custom videoNet5-7.py --topo mytopo --switch ovsk --controller
remote
2) copy HListener.c for each host
# cp HListener.c H1Listener.c
# cp HListener.c H2Listener.c
# ...
# cp HListener.c H6Listener.c
3) modify HxListener.c for each host
for h2, IP address in lines 62 of H2Listener.c is '10.0.0.2'.
4) compile HxListener.c for each host
# cc H1Listener.c -o h1
# cc H2Listener.c -o h2
# ...
# cc H6Listener.c -o h6
5) run hx for each host
h1 # ./h1
h2 # ./h2
...
h6 # ./h6
6) modify HSender.c for h7
IP address in lines 47 of HSender.c is '10.0.0.7'.
7) compile HSender.c
# cc HSender.c -o HSender
8) modify ryu/app/simple_switch_igmp.py
dpid = 0000000000000005, server_port=3 in lines 38 of simple_switch_igmp.py.
9) run ryu/app/simple_switch_igmp.py
# ryu-manager ryu/app/simple_switch_igmp.py
10) run HSender and wait for several minutes
h7 # ./HSender
it works fine.
11) stop h6 and wait for several minutes
send Ctrl+C on h6
h6 stops and others work fine yet.
12) start h6 and wait for several minutes
h6 # ./h6
h6 works fine again.
By the way, is your Ryu the latest version?
There is a bug about IGMP in Ryu before the version 3.8.
On Wed, 4 Jun 2014 18:37:14 -0400
Md. Amjad Hossain wrote:
> Hello,
>
> I have tried with a little bit large topology too. Please find the log file
> and topology in the attachment. I have set dpid = 00000.......05, port =3 in
> igmp.py.
>
> Could you please run the topology for me? Use the sender & Listener file in
> the attachment. After running all hosts ( at least on host per switch),
> sender at host 7, everyone will get the message. Stop receiving on Host 6 (
> press ctrl +C) and run again. This time running the receiver again on host6
> stop other host to receive and after few seconds/ minutes others also start
> receiving again.
>
> Is that above situation a problem?
>
> Thanks for your kind help
>
>
> Amjad
>
>
>
>
> On Wed, Jun 4, 2014 at 5:32 PM, Md. Amjad Hossain <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi Yuichi,
>
> I have tried with 4 host and 2 switch. I see that no flow entry in the
> switch is being send:
> root@ryu-vm:~# ovs-ofctl dump-flows s2
> NXST_FLOW reply (xid=0x4):
> root@ryu-vm:~# ovs-ofctl dump-flows s1
> NXST_FLOW reply (xid=0x4):
>
> So, switches are always flooding the message. Everyone receiving message
> but multicasting is not working.
> Please find the topology and igmp log file in the attachment.
>
>
>
>
>
> On Tue, Jun 3, 2014 at 10:11 PM, Yuichi Ito <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hi Amjad,
>
>
> Thank you for providing information.
> Unfortunately, I could not reproduce the problem.
> Looking at the log file you attached, I think the program worked good.
>
>
> > >> [snoop][DEBUG]
> igmp(address='225.0.1.37',csum=2010,maxresp=0,msgtype=22)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [REPORT]
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Member Changed: [225.0.1.37] querier:[1]
> hosts:[1, 2]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=0000b25eadcac643 PORT=1 IGMP received.
> [QUERY]
> > >> packet in 196119712417347 02:53:3a:5a:65:fa
> 33:33:00:00:00:01 1
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [QUERY]
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:53:3a:5a:65:fa
> 33:33:00:00:00:01 1
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 28695830094665 02:53:3a:5a:65:fa 33:33:00:00:00:01
> 4
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Removed: [225.0.1.37] querier:[1] hosts:[]
>
> It seems that host 1 and 2 did not reply IGMP REPORT messages.
> This is not under control of Ryu IGMP.
> Could you try on smaller topology for locating a problem?
>
>
>
> On Tue, 3 Jun 2014 14:56:24 -0400
> Md. Amjad Hossain wrote:
>
> > hello Yuichi,
> >
> > I was doing that experiment on GENI Testbed. I have tried same
> experiment using mininet. Previously on mininet I got same problem as I was
> getting using GENI. But today I see that mininet always flood messages when I
> run using ryu Igmp.
> >
> > Please find the attachments:
> > 1. Command outputs
> > 2. Mininet topology I am using, ( running controller as remotely
> with loopback IP)/ so, consider the topology without VM in the previous
> topology in PNG file.
> > 3. Output log file : igmp.log
> > 4. The multicast sender & Listner I am using for test
> >
> > Please let me know if you need anything else.
> >
> > Best regards
> > Amjad
> >
> >
> >
> >
> > On Tue, Jun 3, 2014 at 3:08 AM, Yuichi Ito <[email protected]
> <mailto:[email protected]> <mailto:[email protected]
> <mailto:[email protected]>>> wrote:
> >
> > Hi,
> >
> > I will construct the same environment you use using mininet.
> > Could you tell me the following informations?
> >
> > - result of 'sudo ovs-vsctl list Bridge'
> > - result of 'sudo ovs-vsctl list Port'
> > - results of 'sudo ovs-ofctl dump-ports-desc (each switches)'
> > - results of 'ifconfig' of each hosts
> > - network topology (same as former topology.png?)
> >
> > And could you give me a whole log file?
> > To output a log file, please append options as follows:
> >
> > # ryu-manager ryu.app.simple_switch_igmp --verbose
> --log-file=igmp.log
> >
> > On Tue, 03 Jun 2014 15:15:51 +0900
> > Yuichi Ito <[email protected]
> <mailto:[email protected]> <mailto:[email protected]
> <mailto:[email protected]>>> wrote:
> >
> > > Hmm, I can't reproduce this situation yet.
> > > Please give me a little time.
> > >
> > > On Tue, 3 Jun 2014 00:56:36 -0400
> > > Md. Amjad Hossain wrote:
> > >
> > >> Hi Yuichi,
> > >>
> > >> Thanks I found dpid and port and updated as you told me in
> .....igmp.py file. But still getting same problem. Initially everyone was
> getting multicast message but after few seconds some of them stopped
> receiving. I can't make everyone to receive message at the same time. Could
> you please help me with this problem?
> > >>
> > >> Do I have to change anything else? This is the part of
> console output in ryu controller I am getting:
> > >>
> > >> packet in 28695830094665 02:8a:bb:7f:54:5c 33:33:00:00:00:01
> 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:8a:bb:7f:54:5c
> 33:33:00:00:00:01 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 196119712417347 02:8a:bb:7f:54:5c
> 33:33:00:00:00:01 2
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Removed: [225.0.1.37] querier:[2] hosts:[]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='225.0.1.37',csum=2010,maxresp=0,msgtype=22)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=2 IGMP received.
> [REPORT]
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Added: [225.0.1.37] querier:[2] hosts:[]
> > >> Multicast Group Member Changed: [225.0.1.37] querier:[2]
> hosts:[2]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 28695830094665 02:8f:24:90:61:96 33:33:00:00:00:01
> 2
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:8f:24:90:61:96
> 33:33:00:00:00:01 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 196119712417347 02:8f:24:90:61:96
> 33:33:00:00:00:01 2
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=0000b25eadcac643 PORT=3 IGMP received.
> [QUERY]
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 196119712417347 02:e6:66:06:56:88
> 33:33:00:00:00:01 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [QUERY]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:e6:66:06:56:88
> 33:33:00:00:00:01 1
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 28695830094665 02:e6:66:06:56:88 33:33:00:00:00:01
> 4
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='225.0.1.37',csum=2010,maxresp=0,msgtype=22)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [REPORT]
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Member Changed: [225.0.1.37] querier:[1]
> hosts:[1, 2]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=0000b25eadcac643 PORT=1 IGMP received.
> [QUERY]
> > >> packet in 196119712417347 02:53:3a:5a:65:fa
> 33:33:00:00:00:01 1
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [QUERY]
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:53:3a:5a:65:fa
> 33:33:00:00:00:01 1
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 28695830094665 02:53:3a:5a:65:fa 33:33:00:00:00:01
> 4
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Removed: [225.0.1.37] querier:[1] hosts:[]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='225.0.1.37',csum=2010,maxresp=0,msgtype=22)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=1 IGMP received.
> [REPORT]
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Added: [225.0.1.37] querier:[1] hosts:[]
> > >> Multicast Group Member Changed: [225.0.1.37] querier:[1]
> hosts:[1]
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=2 IGMP received.
> [QUERY]
> > >> packet in 138641775921991 02:21:ab:1b:7e:b2
> 33:33:00:00:00:01 2
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='0.0.0.0',csum=61083,maxresp=100,msgtype=17)
> > >> [snoop][INFO] SW=0000b25eadcac643 PORT=2 IGMP received.
> [QUERY]
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 196119712417347 02:21:ab:1b:7e:b2
> 33:33:00:00:00:01 2
> > >> packet in 28695830094665 02:21:ab:1b:7e:b2 33:33:00:00:00:01
> 4
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 28695830094665 02:8a:bb:7f:54:5c 33:33:00:00:00:01
> 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 138641775921991 02:8a:bb:7f:54:5c
> 33:33:00:00:00:01 3
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> EVENT igmplib->SimpleSwitchIgmp EventPacketIn
> > >> packet in 196119712417347 02:8a:bb:7f:54:5c
> 33:33:00:00:00:01 2
> > >> EVENT ofp_event->igmplib EventOFPPacketIn
> > >> [snoop][DEBUG]
> igmp(address='225.0.1.37',csum=2010,maxresp=0,msgtype=22)
> > >> [snoop][INFO] SW=00007e180dce0b47 PORT=2 IGMP received.
> [REPORT]
> > >> EVENT igmplib->SimpleSwitchIgmp
> EventMulticastGroupStateChanged
> > >> Multicast Group Member Changed: [225.0.1.37] querier:[2]
> hosts:[1, 2]
> > >>
> > >>
> > >> Best Regards
> > >> Amjad
> > >>
> > >>
> > >>
> > >>
> > >> On Tue, Jun 3, 2014 at 12:35 AM, Yuichi Ito
> <[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, I'm glad you got well again.
> > >>
> > >> ovs-vsctl helps you to know datapath id, name, ports,
> and so on:
> > >>
> > >> # sudo ovs-vsctl list Bridge
> > >>
> > >> To know port numbers, please use ovs-ofctl:
> > >>
> > >> # sudo ovs-ofctl dump-ports-desc (datapath name)
> > >>
> > >> For more information, please refer to manpages of these
> commands.
> > >>
> > >>
> > >> On Mon, 2 Jun 2014 23:40:12 -0400
> > >> Md. Amjad Hossain wrote:
> > >>
> > >> > Hello Yuichi Ito,
> > >> >
> > >> > Sorry for replying after long time. Actually I had to
> stop working for my physical condition and other reasons.
> > >> >
> > >> > Thank you for your suggestions. I want to start my
> work again. Could you please tell me How can I know the datapath ID of a OVS
> ? Manually I can find the port number of the VM-2 where VM-7 is connected, Do
> you know any easy way to find that port?
> > >> >
> > >> > Best Regards
> > >> > Amjad
> > >> >
> > >> >
> > >> > On Thu, Mar 6, 2014 at 8:50 PM, Yuichi Ito
> <[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.
> > >> >
> > >> > simple_switch_igmp.py requires rewriting according
> to environments when a querier does not exist.
> > >> >
> > >> > please set the followings:
> > >> > - the datapath id of VM-2 switch
> > >> > - the port number of VM-2 switch that is linked
> to VM-7
> > >> >
> > >> >
> https://github.com/osrg/ryu/blob/master/ryu/app/simple_switch_igmp.py#L38
> > >> >
> > >> >
> > >> > On Thu, 6 Mar 2014 00:06:04 -0500
> > >> > Md. Amjad Hossain <[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,
> > >> > >
> > >> > > I am trying to do video streaming using ryu
> controller's multicast module " simpe_switch_igmp.py". My topology is
> attached. when video streamer start streaming , video should be received by
> everyone listening in the multicasting group. But most of the cases its not
> happening. Seems like when H4 is receiving video, no other hosts getting it;
> when H4 is not listening other host can receive video but sometimes need to
> flush switch forwarding table manually.
> > >> > >
> > >> > >
> > >> > > My question is, can anyone please let me know
> whether the implementation of the IGMP module perfect. I mean, is there
> anyone who has been successful doing multicasting with this existing IGMP
> module?
> > >> > >
> > >> > > Any suggestion for doing video streaming by
> multicasting would be greatly appreciated.
> > >> > >
> > >> > >
> > >> > > Thanks
> > >> > > Amjad
> > >> > >
> > >> > >
> > >> > >
> ------------------------------------------------------------------------------
> > >> > > Subversion Kills Productivity. Get off
> Subversion & Make the Move to Perforce.
> > >> > > With Perforce, you get hassle-free workflows.
> Merge that actually works.
> > >> > > Faster operations. Version large binaries.
> Built-in WAN optimization and the
> > >> > > freedom to use Git, Perforce or both. Make the
> move to Perforce.
> > >> > >
> http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk
> > >> > >
> > >> > >
> > >> > >
> > >> > > _______________________________________________
> > >> > > 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
> > >> > >
> > >> >
> > >> >
> > >>
> > >>
> >
> >
>
>
>
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