[ovs-discuss] ovs-vswitchd usage

Martin Casado casado at nicira.com
Sun Nov 15 21:04:37 UTC 2009


What command line args are you passing to Nox when you run it?
> Thanks, Justin.
>
> It works without any controller and also works with ovs-controller. I
> guess it's a NOX issue. Do I have to do anything special with NOX? I'm
> just using the same NOX that works with openflow reference
> implementation 0.8.9. I tried compiling NOX again by giving
> openvswitch to --with-openflow option, but didn't work because some
> header files mismatch.
>
> One more thing - I noticed that I have to bring up interfaces for the
> switch manually, e.g., "ifconfig eth1 up". I wanted to verify if this
> is the case, since I don't do it when I run openflow reference
> implementation.
>
> - Steve
>
> On Sat, Nov 14, 2009 at 6:06 PM, Justin Pettit <jpettit at nicira.com> wrote:
>   
>> On Nov 13, 2009, at 3:15 PM, Steven Y. Ko wrote:
>>
>>     
>>> face.mybr.internal=true
>>>       
>> I don't think you need to set this key.
>>
>>     
>>> NOX is configured as an out-of-band controller, and connectivity is
>>> fine. With this configuration file, I run ovs-vswitchd with -v, then I
>>> get the log copied at the end of this email. It seems that there is no
>>> error. However, when I actually bring up 2 hosts and try to ping each
>>> other, ARP requests never pass through. I used tcpdump to verify that
>>> either eth1 or eth2 receives the ARP requests, and they do receive the
>>> packets.
>>>       
>> What NOX applications are you running?  I'd recommend first trying to run ovs-vswitchd without connecting to a controller.  That way, you can at least determine whether ovs-vswitchd is receiving traffic.  Without a controller, it should just work like a learning switch.  If that looks okay, try running ovs-controller (it's available in the "utilities" directory), since it's much simpler than NOX.  If that looks okay, then it's probably a NOX configuration issue.
>>
>> I'm a bit surprised that you're not seeing packet-in messages reported in the logs below.  It appears that you only have four seconds of logging.  I assume you waited longer than that, correct?
>>
>> --Justin
>>
>>
>>
>>     
>
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