118 lines
5.9 KiB
Python
118 lines
5.9 KiB
Python
# Copyright 2012 Cisco Systems, Inc. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_config import cfg
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from neutron._i18n import _
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DEFAULT_BRIDGE_MAPPINGS = []
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DEFAULT_INTERFACE_MAPPINGS = []
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DEFAULT_VXLAN_GROUP = '224.0.0.1'
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DEFAULT_KERNEL_HZ_VALUE = 250 # [Hz]
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DEFAULT_TC_TBF_LATENCY = 50 # [ms]
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vxlan_opts = [
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cfg.BoolOpt('enable_vxlan', default=True,
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help=_("Enable VXLAN on the agent. Can be enabled when "
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"agent is managed by ml2 plugin using linuxbridge "
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"mechanism driver")),
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cfg.IntOpt('ttl',
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help=_("TTL for vxlan interface protocol packets.")),
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cfg.IntOpt('tos',
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deprecated_for_removal=True,
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help=_("TOS for vxlan interface protocol packets. This option "
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"is deprecated in favor of the dscp option in the AGENT "
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"section and will be removed in a future release. "
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"To convert the TOS value to DSCP, divide by 4.")),
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cfg.StrOpt('vxlan_group', default=DEFAULT_VXLAN_GROUP,
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help=_("Multicast group(s) for vxlan interface. A range of "
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"group addresses may be specified by using CIDR "
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"notation. Specifying a range allows different VNIs to "
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"use different group addresses, reducing or eliminating "
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"spurious broadcast traffic to the tunnel endpoints. "
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"To reserve a unique group for each possible "
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"(24-bit) VNI, use a /8 such as 239.0.0.0/8. This "
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"setting must be the same on all the agents.")),
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cfg.IPOpt('local_ip',
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help=_("IP address of local overlay (tunnel) network endpoint. "
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"Use either an IPv4 or IPv6 address that resides on one "
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"of the host network interfaces. The IP version of this "
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"value must match the value of the 'overlay_ip_version' "
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"option in the ML2 plug-in configuration file on the "
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"neutron server node(s).")),
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cfg.PortOpt('udp_srcport_min', default=0,
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help=_("The minimum of the UDP source port range used for "
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"VXLAN communication.")),
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cfg.PortOpt('udp_srcport_max', default=0,
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help=_("The maximum of the UDP source port range used for "
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"VXLAN communication.")),
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cfg.PortOpt('udp_dstport',
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help=_("The UDP port used for VXLAN communication. By "
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"default, the Linux kernel doesn't use the IANA "
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"assigned standard value, so if you want to use it, "
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"this option must be set to 4789. It is not set by "
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"default because of backward compatibility.")),
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cfg.BoolOpt('l2_population', default=False,
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help=_("Extension to use alongside ml2 plugin's l2population "
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"mechanism driver. It enables the plugin to populate "
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"VXLAN forwarding table.")),
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cfg.BoolOpt('arp_responder', default=False,
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help=_("Enable local ARP responder which provides local "
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"responses instead of performing ARP broadcast into "
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"the overlay. Enabling local ARP responder is not "
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"fully compatible with the allowed-address-pairs "
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"extension.")
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),
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cfg.ListOpt('multicast_ranges',
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default=[],
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help=_("Optional comma-separated list of "
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"<multicast address>:<vni_min>:<vni_max> triples "
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"describing how to assign a multicast address to "
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"VXLAN according to its VNI ID.")),
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]
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bridge_opts = [
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cfg.ListOpt('physical_interface_mappings',
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default=DEFAULT_INTERFACE_MAPPINGS,
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help=_("Comma-separated list of "
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"<physical_network>:<physical_interface> tuples "
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"mapping physical network names to the agent's "
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"node-specific physical network interfaces to be used "
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"for flat and VLAN networks. All physical networks "
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"listed in network_vlan_ranges on the server should "
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"have mappings to appropriate interfaces on each "
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"agent.")),
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cfg.ListOpt('bridge_mappings',
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default=DEFAULT_BRIDGE_MAPPINGS,
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help=_("List of <physical_network>:<physical_bridge>")),
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]
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qos_options = [
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cfg.IntOpt('kernel_hz', default=DEFAULT_KERNEL_HZ_VALUE,
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help=_("Value of host kernel tick rate (hz) for calculating "
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"minimum burst value in bandwidth limit rules for "
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"a port with QoS. See kernel configuration file for "
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"HZ value and tc-tbf manual for more information.")),
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cfg.IntOpt('tbf_latency', default=DEFAULT_TC_TBF_LATENCY,
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help=_("Value of latency (ms) for calculating size of queue "
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"for a port with QoS. See tc-tbf manual for more "
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"information."))
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]
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def register_linuxbridge_opts(cfg=cfg.CONF):
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cfg.register_opts(vxlan_opts, "VXLAN")
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cfg.register_opts(bridge_opts, "LINUX_BRIDGE")
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cfg.register_opts(qos_options, "QOS")
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