We are using Openstack + Ironic to test routing software which requires the use of VLANs. Using VXLan overlays allows the VM's to have nested VLANs without issue as they are encapsulated into a VXLAN and sent across. However, we are struggling to find a path forward in extending the VXLAN overlay out to the hardware device.

Unfortunately, the networking-generic-switch driver does not support VXLAN but this seems to fairly easy to extend (given the right switch). The challenge I'm facing is that with Neutron OVS + L2Pop, there seems to be no easy way to extend the L2 population to include an external device.

The only path forward that I can see is to use the Linux Bridge driver + VXLAN multicast and find a switch that also supports VXLAN multicast so it can participate in the overlay dynamically. The HPE FlexFabric seems to do this from the documentation: https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c04567545

Can anyone help confirm that the switch above will work and or give alternative suggestions on approaching this problem?

-Austin