Open Stack

Hi,

We have an HCI deployment with 3 controllers and 9 compute/storage nodes.
Two of the controllers have the role of neutron server.
The platform uses two bonded interfaces :
bond1 : is used for : *neutron_external_interface*

bond0 : with many vlans on top of it to segregate the rest of the networks :
     - bond0 : vlan natif used for nodes deployment (dhcp, tftp, pxeboot)
     - bond0.10 : vlan 10 ceph public
     - bond0.20 : vlan 20 ceph cluster
     - bond0.30 : vlan 30 API
     - bond0.40 : vlan 40 tunnel
    * - bond0.50 : vlan 50 Public network, here are the public IPs of the
03 controllers, the public horizon VIP interface is created here.*

In our configuration we have *"enable_neutron_provider_networks = yes"*,
which means that an instance can have a public IP directly without using a
virtual-router + NAT. But it does not work.

If we create and instance with a private network, then we attach to it a
floating IP, the VM is reachable from the Internet, but if we attach the VM
directly to the public network, it does not get an IP address from the
public pool, we think it's a dhcp problem but we could not find the source,
we think it's the *Vlan part.*

The controllers are in Vlan 50, if we create a virtual-router it gets its
public IP without any problem. But if we are not mistaken, if an instance
is plugged directly into the public network, it uses bond1 to send its dhcp
requests, but since this interface is not in vlan 50, the requests don't
get to the controllers, is this right? If yes, is there a solution? can we
use bond1.50 as an interface for kolla's *neutron_external_interface *
instead?



Regards.
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