Oh lord! It is working with OpenvSwitch too! Back to original openflow, when I ping from one VM to another, the GUI shows 8 flows in one dot and 0 in the other.. OpenvSwitch works fine, showing 2 flows in each dot.
Another thing, after some time, the log scrollbar in GUI stops going down. It stays in the middle.. Maybe it's a known issue too.. Thanks a lot!!! 2011/9/15 Murphy McCauley <jam...@nau.edu> > Amin mentioned this to me yesterday -- there appears to be a bug in Open > vSwitch 1.2.1 where packet outs get dropped when the input port is none or > controller (which are the two that make any sense for the LLDP packets that > discovery sends). This actually should be showing up on Open vSwitch's log. > > A workaround is to just set the port to some large number. In discovery.py > something like line 331 is: > self.send_openflow_packet(dp, packets[dp][port].tostring(), port) > > Try changing it to: > self.send_openflow_packet(dp, packets[dp][port].tostring(), port, 100) > > With any luck, that'll fix it. > > -- Murphy > > On Sep 15, 2011, at 10:25 AM, Lucas Henrique Mauricio wrote: > > Hello guys, > > One of the interfaces in each VM is configured as internal network in > VirtualBox. This means that if these interfaces are in the same internal > network, I only net to put them in the same subnet to connect them. So, what > I do in OpenvSwitch is the following: > - Create a bridge br0 and put eth2 of VM1 in it. > - Set the controller (NOX, that is in the physical machine) of br0 > - Set a ip for br0 > - Next, I do the same for the other VM, putting br0 in the same subnet of > the previous machine. > > Doing this, one machine can ping the other. I put some prints in > gui/topology.py as Kyriakos told me to do. I printed links and srcid and > it's empty. I took a look at spanning_tree messages in NOX GUI and it said > that could not find the srcid. This makes me think that openvswitch is not > telling NOX some information about topology. > > I have installed original openflow in these VMs as well and when I ran it.. > Suprise.. Links showed up! And those prints in topology.py informed me about > links and srcid. > > Maybe I am configurating something wrong in openvswitch.. =(( > > 2011/9/14 Kyriakos Zarifis <kyr.zari...@gmail.com> > >> The error message you get when you close the application is a known issue >> (it doesn't really affect anything) >> >> You are correct about flowtracer.py. (I didn't remember we had separated >> the feature into its own component). Try running that one, I just tested it >> on my end. >> It won't show anything too meaningful until we figure out why the links >> are not drawn. This might require some debugging on your side: >> 1) First, are you sure there are indeed links there? Have you tried to >> test connectivity? >> 2) If pings etc work, then try to take a look at LAVI's messages to see >> that it actually sees the links. (LAVI is the backend that advertises the >> topology to the gui). >> 3) On the gui side, you can add some print statements in "got_topo_msg()" >> in the file src/gui/topology.py (around line 755), to make sure that link >> advertisement messages are received. I.e. add a "print jsonmsg" and make >> sure messages with the field "links" are received. >> >> >> >> On Wed, Sep 14, 2011 at 5:04 AM, Lucas Henrique Mauricio < >> lhmauri...@poli.ufrj.br> wrote: >> >>> Hello! >>> >>> I don't have physical access to the computer I'm working on it now but >>> the error messages I have are: >>> - Something with a qt4 sql library (Solved downloading libqt4-sql-sqlite) >>> - When exiting the NOX GUI, it shows an error message telling something >>> about it didn't finish a connection (maybe I'm wrong), something will cease >>> to work. I don't remember clearly the correct error message. =( >>> - When I try to use spanning tree without executing it with nox it gives >>> a series of python errors that I think that can be easily solved executing >>> spanning_tree. >>> >>> There is a flowtracer.py but you told me to run sample_routing instead. >>> Is it correct? >>> >>> >>> >>> 2011/9/13 Murphy McCauley <jam...@nau.edu> >>> >>>> Oh, duh, of course the spanning tree component needs to be running. >>>> Haha, thanks Kyriakos. >>>> >>>> One more note is that if you run sample_routing, *don't* run pyswitch. >>>> >>>> -- Murphy >>>> >>>> >>>> On Sep 13, 2011, at 6:15 PM, Kyriakos Zarifis wrote: >>>> >>>> Hi there, >>>> >>>> for stp and flowtracer, the respective relevant NOX components need to >>>> be running >>>> If I recall correctly, the names of these components are 'spanning_tree" >>>> and "sample_routing" >>>> >>>> The haven't been thoroughly tested, but worked fine last time I >>>> checked. They won't do much anyway if the links don't show up. Do you get >>>> any error messages in the terminal where you started the GUI? >>>> >>>> On Tue, Sep 13, 2011 at 10:21 PM, Murphy McCauley <jam...@nau.edu>wrote: >>>> >>>>> I had a vague memory about components, so I looked it up. Maybe this >>>>> applies? >>>>> http://noxrepo.org/pipermail/nox-dev/2011-August/007951.html >>>>> >>>>> For links -- did you add "discovery" to your NOX commandline? >>>>> >>>>> STP and Flowtracer... I am not sure if these are implemented. You >>>>> might take a glance at the code to see if you can tell. I'm not an expert >>>>> in the GUI. Maybe Kyriakos can jump in here. :) >>>>> >>>>> -- Murphy >>>>> >>>>> On Sep 13, 2011, at 9:44 AM, Lucas Henrique Mauricio wrote: >>>>> >>>>> Hello Murphy. >>>>> >>>>> You were right about debugging messages as well.. Using -v -v did make >>>>> these messages to show up in the GUI. >>>>> >>>>> But I still have problems with the links and the components.. >>>>> >>>>> STP and Flowtracer are not working as well but maybe I only need to run >>>>> some functions with nox, right? >>>>> >>>>> Thanks >>>>> >>>>> 2011/9/12 Murphy McCauley <jam...@nau.edu> >>>>> >>>>>> The quick answer about -v -v can be gotten with "./nox_core --help": >>>>>> -v, --verbose make console log verbose (shows INFO >>>>>> messages -- use twice for DBG) >>>>>> >>>>>> The longer answer is that -v -v puts it into "very verbose" mode. >>>>>> NOX's logging can actually be configured with quite a lot of flexibility >>>>>> through several mechanisms, including at runtime... but the GUI doesn't >>>>>> currently know anything about that. In general, you probably DO want all >>>>>> levels of log messages to be sent to the GUI so that you can then use the >>>>>> GUI's filtering mechanism (which lets you filter them after the fact). >>>>>> This >>>>>> really should be the default for the GUI, and I have a local branch which >>>>>> does this, so it's quite possible we'll see it in a future version of >>>>>> NOX. >>>>>> >>>>>> About the Components section being empty... if I recall correctly (and >>>>>> it's entirely possible that I don't), the Components section is >>>>>> populated by >>>>>> watching the DBG messages about component loading when NOX starts up. >>>>>> With >>>>>> only one -v, they never get to the GUI. >>>>>> >>>>>> -- Murphy >>>>>> >>>>>> On Sep 12, 2011, at 7:34 PM, Lucas Henrique Mauricio wrote: >>>>>> >>>>>> I figured it out how to solve the missing library. You were right, >>>>>> it's libqt4-sql-sqlite. >>>>>> >>>>>> About this -v -v, what's the point? hehe I'll try tomorrow but I don't >>>>>> understand what it's gonna change.. Could you explain, please? >>>>>> >>>>>> One last thing, what do you think about the fact that components >>>>>> button doesn't show anything? >>>>>> >>>>>> Thanks for your replies! >>>>>> >>>>>> 2011/9/12 Murphy McCauley <jam...@nau.edu> >>>>>> >>>>>>> It looks like you're missing Qt's sqlite interface. Try installing >>>>>>> it. On Ubuntu I think this is in the libqt4-sql-sqlite package. >>>>>>> >>>>>>> I think to get links to show up, you'll need to run discovery as >>>>>>> well, and you should probably run nox_core with -v -v: >>>>>>> ./nox_core -v -v -i ptcp:2525 monitoring discovery pyswitch >>>>>>> >>>>>>> Hope that helps. >>>>>>> >>>>>>> -- Murphy >>>>>>> >>>>>>> On Sep 12, 2011, at 12:58 PM, Lucas Henrique Mauricio wrote: >>>>>>> >>>>>>> > Hello everybody, >>>>>>> > >>>>>>> > I have NOX running at my host pc and two openvswitch switches >>>>>>> running on two different VirtualBox virtual machines. I created a bridge >>>>>>> between the two VMs and set NOX as controller of this bridge. >>>>>>> > >>>>>>> > At my host, I run "./nox_core -v -i ptcp:2525 monitoring pyswitch" >>>>>>> and "./nox-gui". The NOX GUI shows the two VMs but don't link than, even >>>>>>> when I am pinging one another. When I look at the terminal, I see this: >>>>>>> > root@meier:~/nox/src# ./nox-gui.py >>>>>>> > QSqlDatabase: QSQLITE driver not loaded >>>>>>> > QSqlDatabase: available drivers: QMYSQL3 QMYSQL >>>>>>> > QSqlQuery::exec: database not open >>>>>>> > QSqlQuery::exec: database not open >>>>>>> > >>>>>>> > I think that maybe that's why NOX GUI doesn't show links between >>>>>>> switches and no debugging messages. If I click "component" button, it >>>>>>> shows >>>>>>> a list without any components.. >>>>>>> > >>>>>>> > What am I doing wrong? >>>>>>> > >>>>>>> > Best regards >>>>>>> > >>>>>>> > - >>>>>>> > Lucas Henrique Mauricio >>>>>>> > >>>>>>> > Universidade Federal do Rio de Janeiro >>>>>>> > Escola Politécnica >>>>>>> > Engenharia Eletrônica e de Computação >>>>>>> > _______________________________________________ >>>>>>> > nox-dev mailing list >>>>>>> > nox-dev@noxrepo.org >>>>>>> > http://noxrepo.org/mailman/listinfo/nox-dev >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Lucas Henrique Mauricio >>>>>> >>>>>> Universidade Federal do Rio de Janeiro >>>>>> Escola Politécnica >>>>>> Engenharia Eletrônica e de Computação >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Lucas Henrique Mauricio >>>>> >>>>> Universidade Federal do Rio de Janeiro >>>>> Escola Politécnica >>>>> Engenharia Eletrônica e de Computação >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> nox-dev mailing list >>>>> nox-dev@noxrepo.org >>>>> http://noxrepo.org/mailman/listinfo/nox-dev >>>>> >>>>> >>>> >>>> >>> >>> >>> -- >>> Lucas Henrique Mauricio >>> >>> Universidade Federal do Rio de Janeiro >>> Escola Politécnica >>> Engenharia Eletrônica e de Computação >>> >> >> > > > -- > Lucas Henrique Mauricio > > Universidade Federal do Rio de Janeiro > Escola Politécnica > Engenharia Eletrônica e de Computação > > > -- Lucas Henrique Mauricio Universidade Federal do Rio de Janeiro Escola Politécnica Engenharia Eletrônica e de Computação
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