neutron/files/pike/l3_agent.ini - salt-formulas/neutron - Gitiles

 {%- if pillar.neutron.gateway is defined %}
 {%- from "neutron/map.jinja" import gateway as neutron with context %}
 {%- else %}
 {%- from "neutron/map.jinja" import compute as neutron with context %}
 {%- endif %}
 {%- from "neutron/map.jinja" import fwaas with context %}

 [DEFAULT]

 #
 # From neutron.base.agent
 #

 # Name of Open vSwitch bridge to use (string value)
 #ovs_integration_bridge = br-int

 # Uses veth for an OVS interface or not. Support kernels with limited namespace
 # support (e.g. RHEL 6.5) so long as ovs_use_veth is set to True. (boolean
 # value)
 #ovs_use_veth = false
 {%- if neutron.ovs_use_veth is defined %}
 ovs_use_veth = {{ neutron.ovs_use_veth }}
 {%- endif %}

 # The driver used to manage the virtual interface. (string value)
 #interface_driver = <None>
 interface_driver = openvswitch

 # Timeout in seconds for ovs-vsctl commands. If the timeout expires, ovs
 # commands will fail with ALARMCLOCK error. (integer value)
 #ovs_vsctl_timeout = 10

 #
 # From neutron.l3.agent
 #

 # The working mode for the agent. Allowed modes are: 'legacy' - this preserves
 # the existing behavior where the L3 agent is deployed on a centralized
 # networking node to provide L3 services like DNAT, and SNAT. Use this mode if
 # you do not want to adopt DVR. 'dvr' - this mode enables DVR functionality and
 # must be used for an L3 agent that runs on a compute host. 'dvr_snat' - this
 # enables centralized SNAT support in conjunction with DVR.  This mode must be
 # used for an L3 agent running on a centralized node (or in single-host
 # deployments, e.g. devstack) (string value)
 # Allowed values: dvr, dvr_snat, legacy
 #agent_mode = legacy
 agent_mode = {{ neutron.agent_mode }}

 # TCP Port used by Neutron metadata namespace proxy. (port value)
 # Minimum value: 0
 # Maximum value: 65535
 #metadata_port = 9697
 metadata_port = 8775

 # DEPRECATED: Send this many gratuitous ARPs for HA setup, if less than or
 # equal to 0, the feature is disabled (integer value)
 # This option is deprecated for removal.
 # Its value may be silently ignored in the future.
 #send_arp_for_ha = 3

 # Indicates that this L3 agent should also handle routers that do not have an
 # external network gateway configured. This option should be True only for a
 # single agent in a Neutron deployment, and may be False for all agents if all
 # routers must have an external network gateway. (boolean value)
 #handle_internal_only_routers = true

 # When external_network_bridge is set, each L3 agent can be associated with no
 # more than one external network. This value should be set to the UUID of that
 # external network. To allow L3 agent support multiple external networks, both
 # the external_network_bridge and gateway_external_network_id must be left
 # empty. (string value)
 #gateway_external_network_id =

 # With IPv6, the network used for the external gateway does not need to have an
 # associated subnet, since the automatically assigned link-local address (LLA)
 # can be used. However, an IPv6 gateway address is needed for use as the next-
 # hop for the default route. If no IPv6 gateway address is configured here,
 # (and only then) the neutron router will be configured to get its default
 # route from router advertisements (RAs) from the upstream router; in which
 # case the upstream router must also be configured to send these RAs. The
 # ipv6_gateway, when configured, should be the LLA of the interface on the
 # upstream router. If a next-hop using a global unique address (GUA) is
 # desired, it needs to be done via a subnet allocated to the network and not
 # through this parameter.  (string value)
 #ipv6_gateway =

 # Driver used for ipv6 prefix delegation. This needs to be an entry point
 # defined in the neutron.agent.linux.pd_drivers namespace. See setup.cfg for
 # entry points included with the neutron source. (string value)
 #prefix_delegation_driver = dibbler

 # Allow running metadata proxy. (boolean value)
 #enable_metadata_proxy = true

 # Iptables mangle mark used to mark metadata valid requests. This mark will be
 # masked with 0xffff so that only the lower 16 bits will be used. (string
 # value)
 #metadata_access_mark = 0x1

 # Iptables mangle mark used to mark ingress from external network. This mark
 # will be masked with 0xffff so that only the lower 16 bits will be used.
 # (string value)
 #external_ingress_mark = 0x2

 # DEPRECATED: Name of bridge used for external network traffic. When this
 # parameter is set, the L3 agent will plug an interface directly into an
 # external bridge which will not allow any wiring by the L2 agent. Using this
 # will result in incorrect port statuses. This option is deprecated and will be
 # removed in Ocata. (string value)
 # This option is deprecated for removal.
 # Its value may be silently ignored in the future.
 #external_network_bridge =

 # Seconds between running periodic tasks. (integer value)
 #periodic_interval = 40

 # Number of separate API worker processes for service. If not specified, the
 # default is equal to the number of CPUs available for best performance.
 # (integer value)
 #api_workers = <None>

 # Number of RPC worker processes for service. (integer value)
 #rpc_workers = 1

 # Number of RPC worker processes dedicated to state reports queue. (integer
 # value)
 #rpc_state_report_workers = 1

 # Range of seconds to randomly delay when starting the periodic task scheduler
 # to reduce stampeding. (Disable by setting to 0) (integer value)
 #periodic_fuzzy_delay = 5

 # Location to store keepalived/conntrackd config files (string value)
 #ha_confs_path = $state_path/ha_confs

 # VRRP authentication type (string value)
 # Allowed values: AH, PASS
 #ha_vrrp_auth_type = PASS

 # VRRP authentication password (string value)
 #ha_vrrp_auth_password = <None>

 # The advertisement interval in seconds (integer value)
 #ha_vrrp_advert_int = 2

 # Number of concurrent threads for keepalived server connection requests. More
 # threads create a higher CPU load on the agent node. (integer value)
 # Minimum value: 1
 #ha_keepalived_state_change_server_threads = (1 + <num_of_cpus>) / 2

 # The VRRP health check interval in seconds. Values > 0 enable VRRP health
 # checks. Setting it to 0 disables VRRP health checks. Recommended value is 5.
 # This will cause pings to be sent to the gateway IP address(es) - requires
 # ICMP_ECHO_REQUEST to be enabled on the gateway. If gateway fails, all routers
 # will be reported as master, and master election will be repeated in round-
 # robin fashion, until one of the router restore the gateway connection.
 # (integer value)
 #ha_vrrp_health_check_interval = 0

 # Service to handle DHCPv6 Prefix delegation. (string value)
 #pd_dhcp_driver = dibbler

 # Location to store IPv6 RA config files (string value)
 #ra_confs = $state_path/ra

 # MinRtrAdvInterval setting for radvd.conf (integer value)
 #min_rtr_adv_interval = 30

 # MaxRtrAdvInterval setting for radvd.conf (integer value)
 #max_rtr_adv_interval = 100

 #
 # From oslo.log
 #

 # If set to true, the logging level will be set to DEBUG instead of the default
 # INFO level. (boolean value)
 # Note: This option can be changed without restarting.
 #debug = false
 debug = False

 # DEPRECATED: If set to false, the logging level will be set to WARNING instead
 # of the default INFO level. (boolean value)
 # This option is deprecated for removal.
 # Its value may be silently ignored in the future.
 #verbose = true

 # The name of a logging configuration file. This file is appended to any
 # existing logging configuration files. For details about logging configuration
 # files, see the Python logging module documentation. Note that when logging
 # configuration files are used then all logging configuration is set in the
 # configuration file and other logging configuration options are ignored (for
 # example, logging_context_format_string). (string value)
 # Note: This option can be changed without restarting.
 # Deprecated group/name - [DEFAULT]/log_config
 #log_config_append = <None>

 # Defines the format string for %%(asctime)s in log records. Default:
 # %(default)s . This option is ignored if log_config_append is set. (string
 # value)
 #log_date_format = %Y-%m-%d %H:%M:%S

 # (Optional) Name of log file to send logging output to. If no default is set,
 # logging will go to stderr as defined by use_stderr. This option is ignored if
 # log_config_append is set. (string value)
 # Deprecated group/name - [DEFAULT]/logfile
 #log_file = <None>

 # (Optional) The base directory used for relative log_file  paths. This option
 # is ignored if log_config_append is set. (string value)
 # Deprecated group/name - [DEFAULT]/logdir
 #log_dir = <None>

 # Uses logging handler designed to watch file system. When log file is moved or
 # removed this handler will open a new log file with specified path
 # instantaneously. It makes sense only if log_file option is specified and
 # Linux platform is used. This option is ignored if log_config_append is set.
 # (boolean value)
 #watch_log_file = false

 # Use syslog for logging. Existing syslog format is DEPRECATED and will be
 # changed later to honor RFC5424. This option is ignored if log_config_append
 # is set. (boolean value)
 #use_syslog = false

 # Syslog facility to receive log lines. This option is ignored if
 # log_config_append is set. (string value)
 #syslog_log_facility = LOG_USER

 # Log output to standard error. This option is ignored if log_config_append is
 # set. (boolean value)
 #use_stderr = false

 # Format string to use for log messages with context. (string value)
 #logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s

 # Format string to use for log messages when context is undefined. (string
 # value)
 #logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s

 # Additional data to append to log message when logging level for the message
 # is DEBUG. (string value)
 #logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d

 # Prefix each line of exception output with this format. (string value)
 #logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s

 # Defines the format string for %(user_identity)s that is used in
 # logging_context_format_string. (string value)
 #logging_user_identity_format = %(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s

 # List of package logging levels in logger=LEVEL pairs. This option is ignored
 # if log_config_append is set. (list value)
 #default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN,taskflow=WARN,keystoneauth=WARN,oslo.cache=INFO,dogpile.core.dogpile=INFO

 # Enables or disables publication of error events. (boolean value)
 #publish_errors = false

 # The format for an instance that is passed with the log message. (string
 # value)
 #instance_format = "[instance: %(uuid)s] "

 # The format for an instance UUID that is passed with the log message. (string
 # value)
 #instance_uuid_format = "[instance: %(uuid)s] "

 # Interval, number of seconds, of log rate limiting. (integer value)
 #rate_limit_interval = 0

 # Maximum number of logged messages per rate_limit_interval. (integer value)
 #rate_limit_burst = 0

 # Log level name used by rate limiting: CRITICAL, ERROR, INFO, WARNING, DEBUG
 # or empty string. Logs with level greater or equal to rate_limit_except_level
 # are not filtered. An empty string means that all levels are filtered. (string
 # value)
 #rate_limit_except_level = CRITICAL

 # Enables or disables fatal status of deprecations. (boolean value)
 #fatal_deprecations = false


 [agent]

 #
 # From neutron.az.agent
 #

 # Availability zone of this node (string value)
 #availability_zone = nova

 #
 # From neutron.base.agent
 #

 # Seconds between nodes reporting state to server; should be less than
 # agent_down_time, best if it is half or less than agent_down_time. (floating
 # point value)
 #report_interval = 30

 # Log agent heartbeats (boolean value)
 #log_agent_heartbeats = false

 #
 # From neutron.l3.agent
 #

 # Extensions list to use (list value)
 #extensions =
 {%- if fwaas.get('enabled', False) %}
 extensions = {{ fwaas[fwaas.api_version]['l3_extension'] }}
 {%- endif %}


 [ovs]

 #
 # From neutron.base.agent
 #

 # The interface for interacting with the OVSDB (string value)
 # Allowed values: vsctl, native
 #ovsdb_interface = native

 # The connection string for the OVSDB backend. Will be used by ovsdb-client
 # when monitoring and used for the all ovsdb commands when native
 # ovsdb_interface is enabled (string value)
 #ovsdb_connection = tcp:127.0.0.1:6640
	{%- if pillar.neutron.gateway is defined %}
	{%- from "neutron/map.jinja" import gateway as neutron with context %}
	{%- else %}
	{%- from "neutron/map.jinja" import compute as neutron with context %}
	{%- endif %}
	{%- from "neutron/map.jinja" import fwaas with context %}

	[DEFAULT]

	#
	# From neutron.base.agent
	#

	# Name of Open vSwitch bridge to use (string value)
	#ovs_integration_bridge = br-int

	# Uses veth for an OVS interface or not. Support kernels with limited namespace
	# support (e.g. RHEL 6.5) so long as ovs_use_veth is set to True. (boolean
	# value)
	#ovs_use_veth = false
	{%- if neutron.ovs_use_veth is defined %}
	ovs_use_veth = {{ neutron.ovs_use_veth }}
	{%- endif %}

	# The driver used to manage the virtual interface. (string value)
	#interface_driver = <None>
	interface_driver = openvswitch

	# Timeout in seconds for ovs-vsctl commands. If the timeout expires, ovs
	# commands will fail with ALARMCLOCK error. (integer value)
	#ovs_vsctl_timeout = 10

	#
	# From neutron.l3.agent
	#

	# The working mode for the agent. Allowed modes are: 'legacy' - this preserves
	# the existing behavior where the L3 agent is deployed on a centralized
	# networking node to provide L3 services like DNAT, and SNAT. Use this mode if
	# you do not want to adopt DVR. 'dvr' - this mode enables DVR functionality and
	# must be used for an L3 agent that runs on a compute host. 'dvr_snat' - this
	# enables centralized SNAT support in conjunction with DVR. This mode must be
	# used for an L3 agent running on a centralized node (or in single-host
	# deployments, e.g. devstack) (string value)
	# Allowed values: dvr, dvr_snat, legacy
	#agent_mode = legacy
	agent_mode = {{ neutron.agent_mode }}

	# TCP Port used by Neutron metadata namespace proxy. (port value)
	# Minimum value: 0
	# Maximum value: 65535
	#metadata_port = 9697
	metadata_port = 8775

	# DEPRECATED: Send this many gratuitous ARPs for HA setup, if less than or
	# equal to 0, the feature is disabled (integer value)
	# This option is deprecated for removal.
	# Its value may be silently ignored in the future.
	#send_arp_for_ha = 3

	# Indicates that this L3 agent should also handle routers that do not have an
	# external network gateway configured. This option should be True only for a
	# single agent in a Neutron deployment, and may be False for all agents if all
	# routers must have an external network gateway. (boolean value)
	#handle_internal_only_routers = true

	# When external_network_bridge is set, each L3 agent can be associated with no
	# more than one external network. This value should be set to the UUID of that
	# external network. To allow L3 agent support multiple external networks, both
	# the external_network_bridge and gateway_external_network_id must be left
	# empty. (string value)
	#gateway_external_network_id =

	# With IPv6, the network used for the external gateway does not need to have an
	# associated subnet, since the automatically assigned link-local address (LLA)
	# can be used. However, an IPv6 gateway address is needed for use as the next-
	# hop for the default route. If no IPv6 gateway address is configured here,
	# (and only then) the neutron router will be configured to get its default
	# route from router advertisements (RAs) from the upstream router; in which
	# case the upstream router must also be configured to send these RAs. The
	# ipv6_gateway, when configured, should be the LLA of the interface on the
	# upstream router. If a next-hop using a global unique address (GUA) is
	# desired, it needs to be done via a subnet allocated to the network and not
	# through this parameter. (string value)
	#ipv6_gateway =

	# Driver used for ipv6 prefix delegation. This needs to be an entry point
	# defined in the neutron.agent.linux.pd_drivers namespace. See setup.cfg for
	# entry points included with the neutron source. (string value)
	#prefix_delegation_driver = dibbler

	# Allow running metadata proxy. (boolean value)
	#enable_metadata_proxy = true

	# Iptables mangle mark used to mark metadata valid requests. This mark will be
	# masked with 0xffff so that only the lower 16 bits will be used. (string
	# value)
	#metadata_access_mark = 0x1

	# Iptables mangle mark used to mark ingress from external network. This mark
	# will be masked with 0xffff so that only the lower 16 bits will be used.
	# (string value)
	#external_ingress_mark = 0x2

	# DEPRECATED: Name of bridge used for external network traffic. When this
	# parameter is set, the L3 agent will plug an interface directly into an
	# external bridge which will not allow any wiring by the L2 agent. Using this
	# will result in incorrect port statuses. This option is deprecated and will be
	# removed in Ocata. (string value)
	# This option is deprecated for removal.
	# Its value may be silently ignored in the future.
	#external_network_bridge =

	# Seconds between running periodic tasks. (integer value)
	#periodic_interval = 40

	# Number of separate API worker processes for service. If not specified, the
	# default is equal to the number of CPUs available for best performance.
	# (integer value)
	#api_workers = <None>

	# Number of RPC worker processes for service. (integer value)
	#rpc_workers = 1

	# Number of RPC worker processes dedicated to state reports queue. (integer
	# value)
	#rpc_state_report_workers = 1

	# Range of seconds to randomly delay when starting the periodic task scheduler
	# to reduce stampeding. (Disable by setting to 0) (integer value)
	#periodic_fuzzy_delay = 5

	# Location to store keepalived/conntrackd config files (string value)
	#ha_confs_path = $state_path/ha_confs

	# VRRP authentication type (string value)
	# Allowed values: AH, PASS
	#ha_vrrp_auth_type = PASS

	# VRRP authentication password (string value)
	#ha_vrrp_auth_password = <None>

	# The advertisement interval in seconds (integer value)
	#ha_vrrp_advert_int = 2

	# Number of concurrent threads for keepalived server connection requests. More
	# threads create a higher CPU load on the agent node. (integer value)
	# Minimum value: 1
	#ha_keepalived_state_change_server_threads = (1 + <num_of_cpus>) / 2

	# The VRRP health check interval in seconds. Values > 0 enable VRRP health
	# checks. Setting it to 0 disables VRRP health checks. Recommended value is 5.
	# This will cause pings to be sent to the gateway IP address(es) - requires
	# ICMP_ECHO_REQUEST to be enabled on the gateway. If gateway fails, all routers
	# will be reported as master, and master election will be repeated in round-
	# robin fashion, until one of the router restore the gateway connection.
	# (integer value)
	#ha_vrrp_health_check_interval = 0

	# Service to handle DHCPv6 Prefix delegation. (string value)
	#pd_dhcp_driver = dibbler

	# Location to store IPv6 RA config files (string value)
	#ra_confs = $state_path/ra

	# MinRtrAdvInterval setting for radvd.conf (integer value)
	#min_rtr_adv_interval = 30

	# MaxRtrAdvInterval setting for radvd.conf (integer value)
	#max_rtr_adv_interval = 100

	#
	# From oslo.log
	#

	# If set to true, the logging level will be set to DEBUG instead of the default
	# INFO level. (boolean value)
	# Note: This option can be changed without restarting.
	#debug = false
	debug = False

	# DEPRECATED: If set to false, the logging level will be set to WARNING instead
	# of the default INFO level. (boolean value)
	# This option is deprecated for removal.
	# Its value may be silently ignored in the future.
	#verbose = true

	# The name of a logging configuration file. This file is appended to any
	# existing logging configuration files. For details about logging configuration
	# files, see the Python logging module documentation. Note that when logging
	# configuration files are used then all logging configuration is set in the
	# configuration file and other logging configuration options are ignored (for
	# example, logging_context_format_string). (string value)
	# Note: This option can be changed without restarting.
	# Deprecated group/name - [DEFAULT]/log_config
	#log_config_append = <None>

	# Defines the format string for %%(asctime)s in log records. Default:
	# %(default)s . This option is ignored if log_config_append is set. (string
	# value)
	#log_date_format = %Y-%m-%d %H:%M:%S

	# (Optional) Name of log file to send logging output to. If no default is set,
	# logging will go to stderr as defined by use_stderr. This option is ignored if
	# log_config_append is set. (string value)
	# Deprecated group/name - [DEFAULT]/logfile
	#log_file = <None>

	# (Optional) The base directory used for relative log_file paths. This option
	# is ignored if log_config_append is set. (string value)
	# Deprecated group/name - [DEFAULT]/logdir
	#log_dir = <None>

	# Uses logging handler designed to watch file system. When log file is moved or
	# removed this handler will open a new log file with specified path
	# instantaneously. It makes sense only if log_file option is specified and
	# Linux platform is used. This option is ignored if log_config_append is set.
	# (boolean value)
	#watch_log_file = false

	# Use syslog for logging. Existing syslog format is DEPRECATED and will be
	# changed later to honor RFC5424. This option is ignored if log_config_append
	# is set. (boolean value)
	#use_syslog = false

	# Syslog facility to receive log lines. This option is ignored if
	# log_config_append is set. (string value)
	#syslog_log_facility = LOG_USER

	# Log output to standard error. This option is ignored if log_config_append is
	# set. (boolean value)
	#use_stderr = false

	# Format string to use for log messages with context. (string value)
	#logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s

	# Format string to use for log messages when context is undefined. (string
	# value)
	#logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s

	# Additional data to append to log message when logging level for the message
	# is DEBUG. (string value)
	#logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d

	# Prefix each line of exception output with this format. (string value)
	#logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s

	# Defines the format string for %(user_identity)s that is used in
	# logging_context_format_string. (string value)
	#logging_user_identity_format = %(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s

	# List of package logging levels in logger=LEVEL pairs. This option is ignored
	# if log_config_append is set. (list value)
	#default_log_levels = amqp=WARN,amqplib=WARN,boto=WARN,qpid=WARN,sqlalchemy=WARN,suds=INFO,oslo.messaging=INFO,iso8601=WARN,requests.packages.urllib3.connectionpool=WARN,urllib3.connectionpool=WARN,websocket=WARN,requests.packages.urllib3.util.retry=WARN,urllib3.util.retry=WARN,keystonemiddleware=WARN,routes.middleware=WARN,stevedore=WARN,taskflow=WARN,keystoneauth=WARN,oslo.cache=INFO,dogpile.core.dogpile=INFO

	# Enables or disables publication of error events. (boolean value)
	#publish_errors = false

	# The format for an instance that is passed with the log message. (string
	# value)
	#instance_format = "[instance: %(uuid)s] "

	# The format for an instance UUID that is passed with the log message. (string
	# value)
	#instance_uuid_format = "[instance: %(uuid)s] "

	# Interval, number of seconds, of log rate limiting. (integer value)
	#rate_limit_interval = 0

	# Maximum number of logged messages per rate_limit_interval. (integer value)
	#rate_limit_burst = 0

	# Log level name used by rate limiting: CRITICAL, ERROR, INFO, WARNING, DEBUG
	# or empty string. Logs with level greater or equal to rate_limit_except_level
	# are not filtered. An empty string means that all levels are filtered. (string
	# value)
	#rate_limit_except_level = CRITICAL

	# Enables or disables fatal status of deprecations. (boolean value)
	#fatal_deprecations = false


	[agent]

	#
	# From neutron.az.agent
	#

	# Availability zone of this node (string value)
	#availability_zone = nova

	#
	# From neutron.base.agent
	#

	# Seconds between nodes reporting state to server; should be less than
	# agent_down_time, best if it is half or less than agent_down_time. (floating
	# point value)
	#report_interval = 30

	# Log agent heartbeats (boolean value)
	#log_agent_heartbeats = false

	#
	# From neutron.l3.agent
	#

	# Extensions list to use (list value)
	#extensions =
	{%- if fwaas.get('enabled', False) %}
	extensions = {{ fwaas[fwaas.api_version]['l3_extension'] }}
	{%- endif %}


	[ovs]

	#
	# From neutron.base.agent
	#

	# The interface for interacting with the OVSDB (string value)
	# Allowed values: vsctl, native
	#ovsdb_interface = native

	# The connection string for the OVSDB backend. Will be used by ovsdb-client
	# when monitoring and used for the all ovsdb commands when native
	# ovsdb_interface is enabled (string value)
	#ovsdb_connection = tcp:127.0.0.1:6640