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) <g...@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 < > > scheu...@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? > > > > _______________________________________________ > > > > Mailing list: > > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > Post to : openstack@lists.openstack.org > > > > Unsubscribe : > > > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > > > > > > > > > _______________________________________________ > > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > Post to : openstack@lists.openstack.org > > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > -- > 1AE0 322E B8F7 4717 BDEA BF1D 44BB 1BA7 9F6C 6333 > > keybase: http://keybase.io/gfa >
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