Open Stack

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​
>>>
>>>
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>>
>
>
> --
> Thanks,
> *Vivek Nirala*
> Mobile:+91-9278676843 <+91%2092786%2076843>
>
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