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 Linux bridge Agent configuration options

Table 10.15. Description of Linux Bridge agent configuration options
Configuration option = Default value Description
bridge_mappings = (ListOpt) List of <physical_network>:<physical_bridge>
physical_interface_mappings = (ListOpt) List of <physical_network>:<physical_interface>
enable_vxlan = True (BoolOpt) Enable VXLAN on the agent. Can be enabled when agent is managed by ml2 plugin using linuxbridge mechanism driver
l2_population = False (BoolOpt) Extension to use alongside ml2 plugin's l2population mechanism driver. It enables the plugin to populate VXLAN forwarding table.
local_ip = None (IPOpt) Local IP address of the VXLAN endpoints.
tos = None (IntOpt) TOS for vxlan interface protocol packets.
ttl = None (IntOpt) TTL for vxlan interface protocol packets.
vxlan_group = (StrOpt) Multicast group(s) for vxlan interface. A range of group addresses may be specified by using CIDR notation. To reserve a unique group for each possible (24-bit) VNI, use a /8 such as This setting must be the same on all the agents.

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