Open Stack

Aaron
One use case is that tenant would like to put all the servers in a single
broadcast domain (thus single IP/subnet  domain). The servers can include
the 3 tier servers (web database and application server). Why would he do
that - Because it is simpler.

Then the tenant would like to put security appliance firewalls between
them. Lets say a database firewall appliance before the database tier or
only app servers can access database servers.

This is done in physical world but one needs to add switches and wire them
from one broadcast domain to other. It is a pain. But in the virtual world
this is lot simpler and convenient.

prasadv


On Wed, Apr 16, 2014 at 5:50 PM, Aaron Rosen <aaronorosen at gmail.com> wrote:

> This is true. Several people have asked this same question over the years
> though I've yet to hear a use case why one really need to do this. Do you
> have one?
>
>
> On Wed, Apr 16, 2014 at 3:12 PM, Ronak Shah <ronak at nuagenetworks.net>wrote:
>
>> Hi Vikash,
>> Currently this is not supported. the NIC not only needs to be in
>> different subnet, they have to be in different network as well (container
>> for the subnet)
>>
>> Thanks
>> Ronak
>>
>> On Wed, Apr 16, 2014 at 3:51 AM, Vikash Kumar <
>> vikash.kumar at oneconvergence.com> wrote:
>>
>>> *With 'interfaces' I mean 'nics' of VM*.
>>>
>>>
>>> On Wed, Apr 16, 2014 at 4:18 PM, Vikash Kumar <
>>> vikash.kumar at oneconvergence.com> wrote:
>>>
>>>> Hi,
>>>>
>>>>      I want to launch one VM which will have two Ethernet interfaces
>>>> with IP of single subnet. Is this supported now in openstack ? Any
>>>> suggestion ?
>>>>
>>>>
>>>> Thanx
>>>>
>>>
>>>
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