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provider networks and vxlan

I have a 4 node setup (controller, networking, compute1, and compute2). All nodes use eth0 for their management access and eth1 for their tenant networking (br-int using VXLAN).

I want to add a single, flat provider network. Can I just attach eth2 on the networking node to my provider network, and VMs accessing that network will do it via br-int over VXLAN? Or does every compute node need a direct attachment to this new provider network?