[pox-dev] Bad OpenFlow version (4) on connection with ovs switches

[david jhon]

I just  replaced RiplPox with your version and it worked with carp. Thanks
a lot Murphy :)

I am using 2.1.0 version of mininet, Ripl from brandonheller branch and it
is working pretty fine with latest PoX code.

Regards,

On Thu, Apr 16, 2015 at 3:39 PM, Murphy McCauley <murphy.mccauley at gmail.com>
wrote:

> My fork, which I attempted to update for modern POX:
> https://github.com/MurphyMc/riplpox
>
> It might run on carp, but it was done for dart (and will probably work on
> eel).
>
> See my pull request against Brandon's repo for more info:
> https://github.com/brandonheller/riplpox/pull/5
>
> (I think the short of it was that my updated riplpox works fine, but there
> seemed to be some incompatibilities with ripl and current versions of
> Mininet.)
>
> -- Murphy
>
> On Apr 16, 2015, at 3:31 AM, david jhon <djhon9813 at gmail.com> wrote:
>
> Thank you very much for your response Murphy,
>
> I have decided to use pox carp branch and running it with the
> brandonheller(git://github.com/brandonheller/ripl.git, git://
> github.com/brandonheller/riplpox.git) version of ripL and ripLpox but
> getting following error on pox controller:
>
> Traceback (most recent call last):
>   File "/root/pox/pox/lib/revent/revent.py", line 231, in
> raiseEventNoErrors
>     return self.raiseEvent(event, *args, **kw)
>   File "/root/pox/pox/lib/revent/revent.py", line 278, in raiseEvent
>     rv = event._invoke(handler, *args, **kw)
>   File "/root/pox/pox/lib/revent/revent.py", line 156, in _invoke
>     return handler(self, *args, **kw)
>   File "/root/riplpox/riplpox/riplpox.py", line 344, in _handle_PacketIn
>     self._handle_packet_reactive(event)
>   File "/root/riplpox/riplpox/riplpox.py", line 240, in
> _handle_packet_reactive
>     self._install_reactive_path(event, out_dpid, out_port, packet)
>   File "/root/riplpox/riplpox/riplpox.py", line 160, in
> _install_reactive_path
>     IDLE_TIMEOUT)
>   File "/root/riplpox/riplpox/riplpox.py", line 90, in install
>     self.connection.send(msg)
>   File "/root/pox/pox/openflow/of_01.py", line 692, in send
>     data = data.pack()
>   File "/root/pox/pox/openflow/libopenflow_01.py", line 2320, in pack
>     self.flags)
> error: integer out of range for 'L' format code
> INFO:.root.riplpox.riplpox:route: ['0_1_1', '0_2_1', '0_0_1']
>
> could you please let me know if it is the right version to be used? I
> couldn't find RipL and RipLPOX at POX git repository. Or could you please
> suggest me a fix for this problem? Thanks a lot for your help/suggestions.
>
> Regards,
> David
>
>
>
>
> On Thu, Apr 16, 2015 at 12:47 PM, Murphy McCauley <
> murphy.mccauley at gmail.com> wrote:
>
>> Is the version of POX you're using more than two years old?  I think more
>> recent versions are unlikely to have this happen.
>>
>> If your POX is old, you could update it (in which case, you'd probably
>> want to run  my fork of ripl/riplpox), or you could make the relevant
>> change in your local POX (I think it was a change to HELLO message
>> processing in of_01.py in early 2013).
>>
>> Another way to fix this would be to configure OVS to use OpenFlow 1.0
>> only.  This should be something like...
>> ovs-vsctl set bridge br0 protocols=openflow10
>>
>> Except instead of br0, you'll want to do it for every switch that Mininet
>> creates.  There may be an easy way to get Mininet to do this, but I don't
>> know it off the top of my head; you might try the Mininet list.  Or maybe
>> there's a way to make it the default for OVS; I don't know a way to do that
>> off the top of my head either; you might try the OVS list.
>>
>> -- Murphy
>>
>> On Apr 16, 2015, at 12:32 AM, david jhon <djhon9813 at gmail.com> wrote:
>>
>> > Hi everyone,
>> >
>> > I am working with openvswitch 2.3.90 and made some changes in vswitch
>> code. I am trying to use ripl and riplpox along with the pox controller but
>> pox throws this error:
>> >
>> > WARNING:openflow.of_01:Bad OpenFlow version (4) on connection [Con
>> 19/None]
>> > INFO:openflow.of_01:[Con 19/None] closing connection
>> >
>> > and does not process any packets. I am building and running ovs by
>> compiling from its source available at its git repository.
>> >
>> > P.S. I am using following command to start the topology: sudo mn
>> --custom ~/ripl/ripl/mn.py --topo ft,4 --controller=remote --mac
>> >
>> > and ~/pox/pox.py riplpox.riplpox --topo=ft,4 --routing=hashed
>> --mode=reactive to start the controller.
>> >
>> > It seems POX does not support 2.3.90 version of openvswitch or what
>> else? Pls let me know if there exist a work around for this. Many thanks!
>> >
>> > Regards,
>> > Jhon
>> >
>> >
>>
>>
>
>
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