[ovs-discuss] Getting OpenFlow Set Up

Derek Cormier derek.cormier at lab.ntt.co.jp
Mon Oct 18 04:22:09 UTC 2010

On 10/18/2010 01:00 PM, Derek Cormier wrote:
> On 10/18/2010 11:11 AM, Jesse Gross wrote:
>> On Sun, Oct 17, 2010 at 6:21 PM, Derek Cormier
>> <derek.cormier at lab.ntt.co.jp>  wrote:
>>> On 10/18/2010 09:36 AM, Justin Pettit wrote:
>>>> On Oct 17, 2010, at 5:28 PM, Derek Cormier wrote:
>>>>> When you add ports to a virtual bridge, should you still be able 
>>>>> to ping
>>>>> them? For some reason, I cannot ping the interface on the switch 
>>>>> that a host
>>>>> connects to. Yet, I can ping another host.
>>>> Do you mean, for example, if you add eth0 to br0, you can't ping the
>>>> address assigned to eth0?  If so, then, no, you cannot ping the 
>>>> addresses of
>>>> attached devices.  You can assign the IP address to br0, though, 
>>>> and that
>>>> should work.
>>>> --Justin
>>> Yep, that's exactly what I meant. I tried giving my bridge, vbr0 an IP
>>> address using:
>>>   ifconfig vbr0,
>>> But I am unable to ping it. In order to get ping working before, 
>>> when I was
>>> pinging from host to host, I had to set up the default entry on each 
>>> host to
>>> be their outgoing interface, because it wouldn't work with the routers
>>> incoming interface. Should the default entry for the hosts be vbr0's 
>>> new IP
>>> address?
>> Yes, all configuration should use the bridge interface's IP/MAC
>> address.  The underlying Ethernet adapters become owned by the switch
>> and it will take all traffic before it hits the IP stack.
> Aah I see, thanks for making that clear. However, even after setting 
> the hosts' routing tables to point to vbr0's IP address, I am still 
> unable to ping it.
> -Derek
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It works now! I had the hosts on a different subnet than Open vSwitch's 


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