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2016-09-06 11:17 GMT+02:00 James Guo <guoyongxhzhf at outlook.com>:
> In neutron, it is not permitted to create vxlan network with physical network option
>
> In type_tunnel,py, the function validate_provider_aegment executes the limitation.
>
> What is the consideration?

Neutron has no way of binding the vxlan tunnels to a specific physical
network. It uses local_ip as the local endpoint and advertises this
address to the other nodes, which will use whatever routing they have
configured in order to reach this endpoint. The usual assumption will
be that this is a directly connected network for all nodes, but there
may be other deployment options.