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Advanced Overcloud Customization
Appendix C. Network Interface Parameters

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Appendix C. Network Interface Parameters

The following tables define the Heat template parameters for network interface types.

C.1. Interface Options
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Option	Default	Description
name		Name of the Interface
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the interface
routes		A sequence of routes assigned to the interface
mtu	1500	The maximum transmission unit (MTU) of the connection
primary	False	Defines the interface as the primary interface
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the interface

C.2. VLAN Options
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Option	Default	Description
vlan_id		The VLAN ID
device		The VLAN’s parent device to attach the VLAN. For example, use this parameter to attach the VLAN to a bonded interface device.
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the VLAN
routes		A sequence of routes assigned to the VLAN
mtu	1500	The maximum transmission unit (MTU) of the connection
primary	False	Defines the VLAN as the primary interface
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the VLAN

C.3. OVS Bond Options
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Option	Default	Description
name		Name of the bond
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the bond
routes		A sequence of routes assigned to the bond
mtu	1500	The maximum transmission unit (MTU) of the connection
primary	False	Defines the interface as the primary interface
members		A sequence of interface objects to use in the bond
ovs_options		A set of options to pass to OVS when creating the bond
ovs_extra		A set of options to to set as the OVS_EXTRA parameter in the bond’s network configuration file
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the bond

C.4. OVS Bridge Options
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Option	Default	Description
name		Name of the bridge
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the bridge
routes		A sequence of routes assigned to the bridge
mtu	1500	The maximum transmission unit (MTU) of the connection
members		A sequence of interface, VLAN, and bond objects to use in the bridge
ovs_options		A set of options to pass to OVS when creating the bridge
ovs_extra		A set of options to to set as the OVS_EXTRA parameter in the bridge’s network configuration file
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the bridge

C.5. Linux Bond Options
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Option	Default	Description
name		Name of the bond
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the bond
routes		A sequence of routes assigned to the bond
mtu	1500	The maximum transmission unit (MTU) of the connection
primary	False	Defines the interface as the primary interface
members		A sequence of interface objects to use in the bond
bonding_options		A set of options when creating the bond. For more information on Linux bonding options, see 4.5.1. Bonding Module Directives in the Red Hat Enterprise Linux 7 Networking Guide.
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the bond

C.6. Linux Bridge Options
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Option	Default	Description
name		Name of the bridge
use_dhcp	False	Use DHCP to get an IP address
use_dhcpv6	False	Use DHCP to get a v6 IP address
addresses		A sequence of IP addresses assigned to the bridge
routes		A sequence of routes assigned to the bridge
mtu	1500	The maximum transmission unit (MTU) of the connection
members		A sequence of interface, VLAN, and bond objects to use in the bridge
defroute	True	Use this interface as the default route
persist_mapping	False	Write the device alias configuration instead of the system names
dhclient_args	None	Arguments to pass to the DHCP client
dns_servers	None	List of DNS servers to use for the bridge

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