Open Stack

 I will try to see if I can get anything from the logs.
 If someone else can come to a better suggestion I am all ears.

 Not having full access to the DataCenter and the underlying equipment
 has caused me enough headaches so far :-(


 Best,


 George


> On 03/14/2015 03:32 PM, Georgios Dimitrakakis wrote:
>> Hello again Rick!
>>
>>
>>> On 03/13/2015 06:25 PM, Georgios Dimitrakakis wrote:
>>>> If I do an :
>>>>
>>>> arping -U -I etho x.x.x.x
>>>>
>>>> where x.x.x.x is the IP address.
>>>>
>>>> I can almost immediately access them outside of the subnet!
>>>
>>> I had forgotten that,  Still is that the very same set of options 
>>> the
>>> OpenStack code uses?
>>
>>
>> I am not aware about that and I would like to know!
>> What does Openstack does and how ofted does it send the gratuitous 
>> ARP
>> request?
>
> I don't recall off the top of my head (perhaps someone else does) -
> and my corner of the world is Neutron rather than Nova networking.  
> If
> there is much logging enabled I suspect you could see the commands in
> the logs.  Certainly Neutron is very "chatty" when it comes to 
> logging
> things.
>
>>
>>
>>
>>>
>>>> Do you mean that OpenStack is sending a gratuitous ARP for all
>>>> and the router is ignoring them unless it is for a specific IP 
>>>> address?
>>>>
>>>> If this is the case is there anything I can do?
>>>
>>> I will second the suggestion of getting a packet trace to see just
>>> what sort of ARP traffic the compute node(s) send and then compare
>>> that with the documentation for your router.
>>>
>>> rick
>>>
>>
>>
>> I will try to see if I can get anything but the problem is that the
>> datacenter hosting the facility is in Japan and there is a huge gap
>> communicating with them (actually there is no communication).
>>
>> If I could only find out what does the router accept would be very 
>> nice :-)
>
> Nothing beats being able to see the blinking lights :)
>
> rick