CONTROLLER:

/etc/neutron/plugins/ml2/linuxbridge_agent.ini

[linux_bridge]
physical_interface_mappings = internal:eth4,external:eth5

[vxlan]
enable_vxlan = True
local_ip = 10.3.0.2
l2_population = True

[agent]
prevent_arp_spoofing = True

[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

----------------------------------------

root@controller:/home/cloud# brctl show
bridge name	bridge id		STP enabled	interfaces
brq147f2774-40		8000.2aa3973793da	no		tap42d1ff86-8c
							tap46d9a0be-d4
							vxlan-43
brq3dd1422f-c2		8000.1262b1e48af1	no		eth4
							tap1ef602d0-99
							tap28a80156-d8
							tap98024bbf-89
brqee1b882c-f6		8000.1ea632e54423	no		tap163567e7-ed
							tap58b49cc8-cb
							vxlan-26
brqef960a55-9b		8000.2eaf1591e96e	no		tap3df0fe0c-ae
							tapf0197e9b-59
							vxlan-39
virbr0		8000.5254005141bd	yes		virbr0-nic


COMPUTE:
/etc/neutron/plugins/ml2/linuxbridge_agent.ini

[linux_bridge]
physical_interface_mappings = internal:eth0

[vxlan]
enable_vxlan = True
local_ip = 10.3.0.4
l2_population = True

[agent]
prevent_arp_spoofing = True

[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

cloud@compute02:~$ brctl show
bridge name	bridge id		STP enabled	interfaces
virbr0		8000.525400e1f26b	yes		virbr0-nic