Open Stack

Alternatively can we use a bridge to attach the nic interfaces(of n number
of virtual machines) ?
If yes then is there any specific neutron command to add a bridge and
attach nics to it, this is required since as far as i know nova needs a
network to spawn an instance.

if there is no specific neutron command to add bridge is there any plugin
for that ( ML2 ?? )?
..

On Thu, Mar 16, 2017 at 11:21 PM, Kevin Benton <kevin at benton.pub> wrote:

> If it's to carry some non-ethernet traffic you will need to setup a tunnel
> between the VMs yourself with L2TP or something similar.
>
> On Thu, Mar 16, 2017 at 10:47 AM, Vivek Nirala <nirala.vivek at gmail.com>
> wrote:
>
>> The connection should be like normal Ethernet wire connection, just like
>> we plug an Ethernet wire between two hosts (Host1)nic---etherrnetwire---n
>> ic(Host2).
>>
>>
>> On 16-Mar-2017 4:40 PM, "Kevin Benton" <kevin at benton.pub> wrote:
>>
>>> What kind of cable? What protocol will be carried over it?
>>>
>>> Traffic between VMs on different hosts needs to be encapsulated by a
>>> protocol like GRE or VXLAN to carry it over the real network so that
>>> imposes some limitations on emulating a 'direct wire'.
>>>
>>> If you need to carry some other l2 protocol between two VMs, I suggest
>>> that you just establish and L2TP connection between the hypervisors.
>>>
>>> On Mar 16, 2017 03:56, "Vivek Nirala" <nirala.vivek at gmail.com> wrote:
>>>
>>>> ​I want the connection between the two VMs through nics or anyother
>>>> way, such that the connection is like direct cable connection.​
>>>>
>>>> On Wed, Mar 15, 2017 at 11:06 AM, Kevin Benton <kevin at benton.pub>
>>>> wrote:
>>>>
>>>>> What type of L2 communication do they need to do? If it's ethernet,
>>>>> then just attaching two ports to a network using one of the reference ML2
>>>>> drivers (i.e. OVS or LinuxBridge) will give you L2 ethernet connectivity
>>>>> via virtual switches.
>>>>>
>>>>> If you want two VMs connected via a direct connect that passes
>>>>> arbitrary frames directly without switching so you can use non-ethernet
>>>>> protocols, then I don't believe any of the plugins support a model like
>>>>> that.
>>>>>
>>>>> On Tue, Mar 14, 2017 at 9:46 PM, Vivek Nirala <nirala.vivek at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I have installed openstack using ansible on Ubuntu 16.04 Server.
>>>>>> I am able to successfully create VMs and launch instances however the
>>>>>> requirement is to add one extra nic on both VMs(default is only once nic)
>>>>>> so as the extra nics are connected as if they are physically connected via
>>>>>> a wire i.e. L2 connectivity.
>>>>>>
>>>>>> Please let me know your suggestions.
>>>>>>
>>>>>>
>>>>>> Thanks
>>>>>> ​,
>>>>>> Vivek​
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Mailing list: http://lists.openstack.org/cgi
>>>>>> -bin/mailman/listinfo/openstack
>>>>>> Post to     : openstack at lists.openstack.org
>>>>>> Unsubscribe : http://lists.openstack.org/cgi
>>>>>> -bin/mailman/listinfo/openstack
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>> *Vivek Nirala*
>>>> Mobile:+91-9278676843 <+91%2092786%2076843>
>>>>
>>>
>


-- 
Thanks,
*Vivek Nirala*
Mobile:+91-9278676843
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20170317/2dcb7ec4/attachment.html>