openvswitch_agent.ini¶

DEFAULT¶

rpc_response_max_timeout¶

Type: integer
Default: 600

Maximum seconds to wait for a response from an RPC call.

debug¶

Type: boolean
Default: False
Mutable: This option can be changed without restarting.

If set to true, the logging level will be set to DEBUG instead of the default INFO level.

log_config_append¶

Type: string
Default: <None>
Mutable: This option can be changed without restarting.

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, log-date-format).

Deprecated Variations¶
Group	Name
DEFAULT	log-config
DEFAULT	log_config

log_date_format¶

Type: string
Default: %Y-%m-%d %H:%M:%S

Defines the format string for %(asctime)s in log records. Default: the value above . This option is ignored if log_config_append is set.

log_file¶

Type: string
Default: <None>

(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.

Deprecated Variations¶
Group	Name
DEFAULT	logfile

log_dir¶

Type: string
Default: <None>

(Optional) The base directory used for relative log_file paths. This option is ignored if log_config_append is set.

Deprecated Variations¶
Group	Name
DEFAULT	logdir

watch_log_file¶

Type: boolean
Default: False

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.

use_syslog¶

Type: boolean
Default: 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.

use_journal¶

Type: boolean
Default: False

Enable journald for logging. If running in a systemd environment you may wish to enable journal support. Doing so will use the journal native protocol which includes structured metadata in addition to log messages.This option is ignored if log_config_append is set.

syslog_log_facility¶

Type: string
Default: LOG_USER

Syslog facility to receive log lines. This option is ignored if log_config_append is set.

use_json¶

Type: boolean
Default: False

Use JSON formatting for logging. This option is ignored if log_config_append is set.

use_stderr¶

Type: boolean
Default: False

Log output to standard error. This option is ignored if log_config_append is set.

use_eventlog¶

Type: boolean
Default: False

Log output to Windows Event Log.

log_rotate_interval¶

Type: integer
Default: 1

The amount of time before the log files are rotated. This option is ignored unless log_rotation_type is setto “interval”.

log_rotate_interval_type¶

Type: string
Default: days
Valid Values: Seconds, Minutes, Hours, Days, Weekday, Midnight

Rotation interval type. The time of the last file change (or the time when the service was started) is used when scheduling the next rotation.

max_logfile_count¶

Type: integer
Default: 30

Maximum number of rotated log files.

max_logfile_size_mb¶

Type: integer
Default: 200

Log file maximum size in MB. This option is ignored if “log_rotation_type” is not set to “size”.

log_rotation_type¶

Type: string
Default: none
Valid Values: interval, size, none

Log rotation type.

Possible values

interval: Rotate logs at predefined time intervals.
size: Rotate logs once they reach a predefined size.
none: Do not rotate log files.

logging_context_format_string¶

Type: string
Default: %(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 with context. Used by oslo_log.formatters.ContextFormatter

logging_default_format_string¶

Type: string
Default: %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s

Format string to use for log messages when context is undefined. Used by oslo_log.formatters.ContextFormatter

logging_debug_format_suffix¶

Type: string
Default: %(funcName)s %(pathname)s:%(lineno)d

Additional data to append to log message when logging level for the message is DEBUG. Used by oslo_log.formatters.ContextFormatter

logging_exception_prefix¶

Type: string
Default: %(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s

Prefix each line of exception output with this format. Used by oslo_log.formatters.ContextFormatter

logging_user_identity_format¶

Type: string
Default: %(user)s %(tenant)s %(domain)s %(user_domain)s %(project_domain)s

Defines the format string for %(user_identity)s that is used in logging_context_format_string. Used by oslo_log.formatters.ContextFormatter

default_log_levels¶

Type: list
Default: ['amqp=WARN', 'amqplib=WARN', 'boto=WARN', 'qpid=WARN', 'sqlalchemy=WARN', 'suds=INFO', 'oslo.messaging=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', 'oslo_policy=INFO', 'dogpile.core.dogpile=INFO']

List of package logging levels in logger=LEVEL pairs. This option is ignored if log_config_append is set.

publish_errors¶

Type: boolean
Default: False

Enables or disables publication of error events.

instance_format¶

Type: string
Default: "[instance: %(uuid)s] "

The format for an instance that is passed with the log message.

instance_uuid_format¶

Type: string
Default: "[instance: %(uuid)s] "

The format for an instance UUID that is passed with the log message.

rate_limit_interval¶

Type: integer
Default: 0

Interval, number of seconds, of log rate limiting.

rate_limit_burst¶

Type: integer
Default: 0

Maximum number of logged messages per rate_limit_interval.

rate_limit_except_level¶

Type: string
Default: CRITICAL

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.

fatal_deprecations¶

Type: boolean
Default: False

Enables or disables fatal status of deprecations.

agent¶

minimize_polling¶

Type: boolean
Default: True

Minimize polling by monitoring ovsdb for interface changes.

ovsdb_monitor_respawn_interval¶

Type: integer
Default: 30

The number of seconds to wait before respawning the ovsdb monitor after losing communication with it.

tunnel_types¶

Type: list
Default: []

Network types supported by the agent (gre, vxlan and/or geneve).

vxlan_udp_port¶

Type: port number
Default: 4789
Minimum Value: 0
Maximum Value: 65535

The UDP port to use for VXLAN tunnels.

veth_mtu¶

Type: integer
Default: 9000

MTU size of veth interfaces

l2_population¶

Type: boolean
Default: False

Use ML2 l2population mechanism driver to learn remote MAC and IPs and improve tunnel scalability.

arp_responder¶

Type: boolean
Default: False

Enable local ARP responder if it is supported. Requires OVS 2.1 and ML2 l2population driver. Allows the switch (when supporting an overlay) to respond to an ARP request locally without performing a costly ARP broadcast into the overlay. NOTE: If enable_distributed_routing is set to True then arp_responder will automatically be set to True in the agent, regardless of the setting in the config file.

dont_fragment¶

Type: boolean
Default: True

Set or un-set the don’t fragment (DF) bit on outgoing IP packet carrying GRE/VXLAN tunnel.

enable_distributed_routing¶

Type: boolean
Default: False

Make the l2 agent run in DVR mode.

drop_flows_on_start¶

Type: boolean
Default: False

Reset flow table on start. Setting this to True will cause brief traffic interruption.

tunnel_csum¶

Type: boolean
Default: False

Set or un-set the tunnel header checksum on outgoing IP packet carrying GRE/VXLAN tunnel.

baremetal_smartnic¶

Type: boolean
Default: False

Enable the agent to process Smart NIC ports.

explicitly_egress_direct¶

Type: boolean
Default: False

When set to True, the accepted egress unicast traffic will not use action NORMAL. The accepted egress packets will be taken care of in the final egress tables direct output flows for unicast traffic.

extensions¶

Type: list
Default: []

Extensions list to use

network_log¶

rate_limit¶

Type: integer
Default: 100
Minimum Value: 100

Maximum packets logging per second.

burst_limit¶

Type: integer
Default: 25
Minimum Value: 25

Maximum number of packets per rate_limit.

local_output_log_base¶

Type: string
Default: <None>

Output logfile path on agent side, default syslog file.

ovs¶

integration_bridge¶

Type: string
Default: br-int

Integration bridge to use. Do not change this parameter unless you have a good reason to. This is the name of the OVS integration bridge. There is one per hypervisor. The integration bridge acts as a virtual ‘patch bay’. All VM VIFs are attached to this bridge and then ‘patched’ according to their network connectivity.

Deprecated Variations¶
Group	Name
ovs	ovs_integration_bridge

tunnel_bridge¶

Type: string
Default: br-tun

Tunnel bridge to use.

int_peer_patch_port¶

Type: string
Default: patch-tun

Peer patch port in integration bridge for tunnel bridge.

tun_peer_patch_port¶

Type: string
Default: patch-int

Peer patch port in tunnel bridge for integration bridge.

local_ip¶

Type: ip address
Default: <None>

IP address of local overlay (tunnel) network endpoint. Use either an IPv4 or IPv6 address that resides on one of the host network interfaces. The IP version of this value must match the value of the ‘overlay_ip_version’ option in the ML2 plug-in configuration file on the neutron server node(s).

bridge_mappings¶

Type: list
Default: []

Comma-separated list of <physical_network>:<bridge> tuples mapping physical network names to the agent’s node-specific Open vSwitch bridge names to be used for flat and VLAN networks. The length of bridge names should be no more than 11. Each bridge must exist, and should have a physical network interface configured as a port. All physical networks configured on the server should have mappings to appropriate bridges on each agent. Note: If you remove a bridge from this mapping, make sure to disconnect it from the integration bridge as it won’t be managed by the agent anymore.

resource_provider_bandwidths¶

Type: list
Default: []

Comma-separated list of <bridge>:<egress_bw>:<ingress_bw> tuples, showing the available bandwidth for the given bridge in the given direction. The direction is meant from VM perspective. Bandwidth is measured in kilobits per second (kbps). The bridge must appear in bridge_mappings as the value. But not all bridges in bridge_mappings must be listed here. For a bridge not listed here we neither create a resource provider in placement nor report inventories against. An omitted direction means we do not report an inventory for the corresponding class.

resource_provider_hypervisors¶

Type: dict
Default: {}

Mapping of bridges to hypervisors: <bridge>:<hypervisor>,… hypervisor name is used to locate the parent of the resource provider tree. Only needs to be set in the rare case when the hypervisor name is different from the resource_provider_default_hypervisor config option value as known by the nova-compute managing that hypervisor.

resource_provider_default_hypervisor¶

Type: string
Default: <None>

The default hypervisor name used to locate the parent of the resource provider. If this option is not set, canonical name is used

resource_provider_inventory_defaults¶

Type: dict
Default: {'allocation_ratio': 1.0, 'min_unit': 1, 'step_size': 1, 'reserved': 0}

Key:value pairs to specify defaults used while reporting resource provider inventories. Possible keys with their types: allocation_ratio:float, max_unit:int, min_unit:int, reserved:int, step_size:int, See also: https://docs.openstack.org/api-ref/placement/#update-resource-provider-inventories

datapath_type¶

Type: string
Default: system
Valid Values: system, netdev

OVS datapath to use. ‘system’ is the default value and corresponds to the kernel datapath. To enable the userspace datapath set this value to ‘netdev’.

vhostuser_socket_dir¶

Type: string
Default: /var/run/openvswitch

OVS vhost-user socket directory.

of_listen_address¶

Type: ip address
Default: 127.0.0.1

Address to listen on for OpenFlow connections.

of_listen_port¶

Type: port number
Default: 6633
Minimum Value: 0
Maximum Value: 65535

Port to listen on for OpenFlow connections.

of_connect_timeout¶

Type: integer
Default: 300

Timeout in seconds to wait for the local switch connecting the controller.

of_request_timeout¶

Type: integer
Default: 300

Timeout in seconds to wait for a single OpenFlow request.

of_inactivity_probe¶

Type: integer
Default: 10

The inactivity_probe interval in seconds for the local switch connection to the controller. A value of 0 disables inactivity probes.

ovsdb_connection¶

Type: string
Default: tcp:127.0.0.1:6640

The connection string for the OVSDB backend. Will be used for all ovsdb commands and by ovsdb-client when monitoring

ssl_key_file¶

Type: string
Default: <None>

The SSL private key file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ssl_cert_file¶

Type: string
Default: <None>

The SSL certificate file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ssl_ca_cert_file¶

Type: string
Default: <None>

The Certificate Authority (CA) certificate to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection

ovsdb_debug¶

Type: boolean
Default: False

Enable OVSDB debug logs

securitygroup¶

firewall_driver¶

Type: string
Default: <None>

Driver for security groups firewall in the L2 agent

enable_security_group¶

Type: boolean
Default: True

Controls whether the neutron security group API is enabled in the server. It should be false when using no security groups or using the nova security group API.

enable_ipset¶

Type: boolean
Default: True

Use ipset to speed-up the iptables based security groups. Enabling ipset support requires that ipset is installed on L2 agent node.

permitted_ethertypes¶

Type: list
Default: []

Comma-separated list of ethertypes to be permitted, in hexadecimal (starting with “0x”). For example, “0x4008” to permit InfiniBand.

openvswitch_agent.ini