7e79e6973e
This patch introduces VXLAN support for Linuxbridge agent alongside with ml2 plugin support in linubridge mechnism driver. A new vxlan configuration section is added for vxlan related parameters. The agent also implements l2population RPC callbacks which allows ml2 plugin using l2population mechnism driver to populate vxlan forwarding and neighbor tables following portbinding events. It allows agent to respond locally to ARP requests for remote VMs and avoid dataplane based learning. This should help limiting the use of multicast or flooding for broadcast emulation in vxlan networks. These changes should anyway have a limited risk, as agent behaviour shouldn't be affected, except when vxlan is enabled alongside ml2 plugin. Implements: blueprint l2-population Change-Id: I99a961c53f9e451409f1affb079042936d8ae5c6
80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# 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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#
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# @author: Sumit Naiksatam, Cisco Systems, Inc.
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# @author: Rohit Agarwalla, Cisco Systems, Inc.
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from oslo.config import cfg
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from neutron.agent.common import config
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DEFAULT_VLAN_RANGES = []
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DEFAULT_INTERFACE_MAPPINGS = []
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DEFAULT_VXLAN_GROUP = '224.0.0.1'
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vlan_opts = [
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cfg.StrOpt('tenant_network_type', default='local',
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help=_("Network type for tenant networks "
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"(local, vlan, or none)")),
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cfg.ListOpt('network_vlan_ranges',
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default=DEFAULT_VLAN_RANGES,
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help=_("List of <physical_network>:<vlan_min>:<vlan_max> "
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"or <physical_network>")),
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]
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vxlan_opts = [
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cfg.BoolOpt('enable_vxlan', default=False,
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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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help=_("TOS for vxlan interface protocol packets.")),
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cfg.StrOpt('vxlan_group', default=DEFAULT_VXLAN_GROUP,
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help=_("Multicast group for vxlan interface.")),
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cfg.StrOpt('local_ip', default='',
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help=_("Local IP address of the VXLAN endpoints.")),
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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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]
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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=_("List of <physical_network>:<physical_interface>")),
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]
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agent_opts = [
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cfg.IntOpt('polling_interval', default=2,
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help=_("The number of seconds the agent will wait between "
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"polling for local device changes.")),
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#TODO(rkukura): Change default to False before havana rc1
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cfg.BoolOpt('rpc_support_old_agents', default=True,
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help=_("Enable server RPC compatibility with old agents")),
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]
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cfg.CONF.register_opts(vlan_opts, "VLANS")
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cfg.CONF.register_opts(vxlan_opts, "VXLAN")
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cfg.CONF.register_opts(bridge_opts, "LINUX_BRIDGE")
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cfg.CONF.register_opts(agent_opts, "AGENT")
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config.register_agent_state_opts_helper(cfg.CONF)
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config.register_root_helper(cfg.CONF)
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