Hi Charles,
If I understand it right - since you are creating the external network
with a vlan tag then the OV controller(nova instance in the OBM
openstack) needs to send tagged frames which afaik doesn't work since
ovs strips the tag. I see there's a blueprint[1] for vlan aware vms
but it's not implemented.
[1] 
http://specs.openstack.org/openstack/neutron-specs/specs/liberty/vlan-awa...
On Thu, Feb 18, 2016 at 4:41 PM, Charles Short <cems(a)ebi.ac.uk> wrote:
 Hi,
 I successfully deployed RDO Manager Liberty HA with VLANS  on some HP blades
 + in-chassis switches with trunked VLANs ports (call this OBM  (Openstack
 Bare Metal))
 I wanted to deploy a test Openstack environment within this (call this OV
 (Openstack Virtual))
 So I created two instances in OBM, and used packstack to roll out one
 controller and one compute node configured with vxlan tenant networks.
 This all worked and I can fire up an instance in OV, and it gets an ip.
 I then created an external network in OV with a VLAN id that matches an OBM
 network. The plan was to access an instance in OV from an instance in OBM.
 Problem is that the OV external network gateway is down, and after assigning
 a floating ip to the OV instance I have no access to or from it. I can only
 get to it from the network namespace on the OV controller (ip netns
 exec....)
 I have previously got this Openstack nested visualization working in VMware
 (vCloud) by enabling promiscuous mode on dvs portgoup, and also enabling
 promisc on the virtual interfaces of the virtual Openstack controllers.
 I tried enabling promiscuous mode on the OV controllers interfaces (OBM
 instances), but this seemed to make no difference.
 Any tips? Is this possible?
 Thanks
 Charles
 --
 Charles Short
 Cloud Engineer
 Virtualization and Cloud Team
 European Bioinformatics Institute (EMBL-EBI)
 Tel: +44 (0)1223 494205
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