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There was some discussion if the ml2_type_vxlan.vxlan_group of the ml2
config file (Neutron Server) can be removed [1], as it is not being used
by in-tree drivers (ovs, lb, sriov). 

OVS: does not support vxlan mcast
LB: uses it's own agent configuration today. 
SRIOV: does not support vxlan at all


- Does anybody know any out-of-tree ml2 drivers that take use of this
option?
- Why was it added at all? [2]


Main question: 
There is a patch out to make lb using this ml2 parameter and deprecate
the agent one. [3] Is this the right approach, or can we keep the agent
parameter and remove the server one (which is not used - or where we
don't know the users)?



[1] https://review.openstack.org/254318
[2] https://review.openstack.org/35384
[3] https://review.openstack.org/#/c/268153



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Andreas (IRC: scheuran)