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They are two different types of Networks. The original one you are looking appears to be GRE while the second one appears to be VLAN. GRE would care about tunnels while VLANs just need the physnet mappings and VLAN ID Range.

You will want to look at the guide that is associated with the type of networking you want to configure, Neutron + VLAN or Neutron + GRE.

They are two different types of Networks. The original one you are looking appears to be GRE while the second one appears to be VLAN. GRE would care about tunnels while VLANs just need the physnet mappings and VLAN ID Range.

You will want to look at the guide that is associated with the type of networking you want to configure, Neutron + VLAN or Neutron + GRE.

GRE (OVS):

[ml2_type_flat]
flat_networks = external
[ovs] ... local_ip = 194.2.1.2 enable_tunneling = True bridge_mappings = external:br-ex

VLAN (OVS):

[ml2_type_flat] flat_networks = physnet1
[ovs] network_vlan_ranges = physnet1 bridge_mappings = physnet1:br-eth2