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yeah, if you map a neutron network to a physical network that is routed to the outside world, then there is no need for neutron routers/ l3-agents/network nodes. Neutron will still allocate IPs, and do security groups, so I would keep the dhcp stuff. But you don't need a network node to run the dhcp-agents - just run them on the compute nodes. More than one dhcp-agent can serve a network for redundancy.

yeah, if you map a neutron network to a physical network that is routed to the outside world, then there is no need for neutron routers/ l3-agents/network nodes. Neutron will still allocate IPs, and do security groups, metadata so I would keep the dhcp stuff. But you don't need a network node to run the dhcp-agents - just run them on the compute nodes. More than one dhcp-agent can serve a network for redundancy.