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 _______________________________________________ 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
