Open Stack

Excellent! Thanks for clarifying how this works. I was reading the docs
from James Denton and the one from Openstack.org and getting quite confused.

On Fri, Jan 15, 2016 at 8:17 AM, gustavo panizzo (gfa) <gfa at zumbi.com.ar>
wrote:

> On Fri, Jan 15, 2016 at 07:38:37 -0800, John van Ommen wrote:
> > My compute node and my controller node are both physically connected to
> the
> > same switch, and they can talk to the same tagged VLAN.
> >
> > The part I'm having trouble understanding is the network namespace. For
> > instance:
> >
> > I have a provider VLAN on VLAN 100
> > The CIDR for VLAN 100 is 192.168.0.0/24
> >
> > Is there an IP address on VLAN 100 for the physical interface? Or does
> that
> > IP range only exist in the network namespace? I understand that the DHCP
> > server listens on the network namespace. I'm trying to understand what
> must
> > exist OUTSIDE of that network namespace, on the physical interface that
> > hosts it (eth0).
>
> the dhcp server port will be created on a network namespace, it will have
> an ip on 192.168.0.0/24 network. Your physical interface eth0, and the
> vswitch that holds it, won't have an ip on that network
>
> >
> > On Fri, Jan 15, 2016 at 5:00 AM, Andreas Scheuring <
> > scheuran at linux.vnet.ibm.com> wrote:
> >
> > > Hi John,
> > > the short answer: If you dhcp runs on the network node, then of course
> > > your network node must be attached to that provider network as well!
> > >
> > > Andreas (IRC: scheuran)
> > >
> > > On Do, 2016-01-14 at 22:08 -0800, John van Ommen wrote:
> > > > If I have a VM that's getting it's IP addresses from a VLAN provider
> > > > network, is it sufficient to have a network namespace that
> corresponds
> > > > to that network?
> > > >
> > > > Or do I also need to have a network interface on the server that
> > > > corresponds to it?
> > > >
> > > > For instance, if I have a provider network with a CIDR of
> > > > 192.168.0.1/24, and I have a network namespace that maps to that
> > > > provider network, is that sufficient? Or do I also need to have a
> > > > network interface on the control plane and network node in the same
> > > > CIDR?
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> > >
> > >
> > >
>
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