[Rdo-list] instance ips not reusable ?

Xin Zhao xzhao at bnl.gov
Fri Feb 13 01:31:32 UTC 2015


Hi Dmitry,

On 2/12/2015 5:14 PM, Dmitry Makovey wrote:
> On 02/12/2015 03:01 PM, Zhao, Xin wrote:
>> Hello,
>>
>> I notice that, in my icehouse testbed that runs neutron in OVS/VLAN
>> mode, ips from the deleted instances don't seem to be reassigned to new
>> instances, new instances always get the next available ip from the range
>> incrementally.  I am afraid this will cause problem eventually.  On old
>> releases, the ips of the deleted instances get reused pretty quickly on
>> new instances. Do I miss some configuration option?
> In our case - IP that was allocated and associated with an instance
> stays allocated after instance is shut down, and I am able to associate
> it with the new VMs just fine.
>
> How are you doing your association? Some scripting perhaps?

Are you talking about floating ips that are allocated and associated 
with running instances? What I am asking is about the regular ips in the 
VM network, that are assigned by DHCP automatically upon boot time.

Thanks,
Xin




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