81e793d9f1
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
75 lines
2.9 KiB
INI
75 lines
2.9 KiB
INI
[vlans]
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# (StrOpt) Type of network to allocate for tenant networks. The
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# default value 'local' is useful only for single-box testing and
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# provides no connectivity between hosts. You MUST change this to
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# 'vlan' and configure network_vlan_ranges below in order for tenant
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# networks to provide connectivity between hosts. Set to 'none' to
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# disable creation of tenant networks.
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#
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# tenant_network_type = local
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# Example: tenant_network_type = vlan
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# (ListOpt) Comma-separated list of
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# <physical_network>[:<vlan_min>:<vlan_max>] tuples enumerating ranges
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# of VLAN IDs on named physical networks that are available for
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# allocation. All physical networks listed are available for flat and
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# VLAN provider network creation. Specified ranges of VLAN IDs are
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# available for tenant network allocation if tenant_network_type is
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# 'vlan'. If empty, only local networks may be created.
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#
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# network_vlan_ranges =
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# Example: network_vlan_ranges = physnet1:1000:2999
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[linux_bridge]
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# (ListOpt) Comma-separated list of
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# <physical_network>:<physical_interface> tuples mapping physical
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# network names to the agent's node-specific physical network
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# interfaces to be used for flat and VLAN networks. All physical
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# networks listed in network_vlan_ranges on the server should have
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# mappings to appropriate interfaces on each agent.
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#
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# physical_interface_mappings =
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# Example: physical_interface_mappings = physnet1:eth1
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[vxlan]
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# (BoolOpt) enable VXLAN on the agent
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# VXLAN support can be enabled when agent is managed by ml2 plugin using
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# linuxbridge mechanism driver. Useless if set while using linuxbridge plugin.
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# enable_vxlan = False
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#
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# (IntOpt) use specific TTL for vxlan interface protocol packets
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# ttl =
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#
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# (IntOpt) use specific TOS for vxlan interface protocol packets
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# tos =
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#
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# (StrOpt) multicast group to use for broadcast emulation.
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# This group must be the same on all the agents.
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# vxlan_group = 224.0.0.1
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#
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# (StrOpt) Local IP address to use for VXLAN endpoints (required)
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# local_ip =
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#
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# (BoolOpt) Flag to enable l2population extension. This option should be used
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# in conjunction with ml2 plugin l2population mechanism driver (in that case,
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# both linuxbridge and l2population mechanism drivers should be loaded).
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# It enables plugin to populate VXLAN forwarding table, in order to limit
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# the use of broadcast emulation (multicast will be turned off if kernel and
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# iproute2 supports unicast flooding - requires 3.11 kernel and iproute2 3.10)
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# l2_population = False
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[agent]
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# Agent's polling interval in seconds
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# polling_interval = 2
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# (BoolOpt) Enable server RPC compatibility with old (pre-havana)
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# agents.
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#
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# rpc_support_old_agents = True
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# Example: rpc_support_old_agents = False
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[securitygroup]
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# Firewall driver for realizing neutron security group function
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# firewall_driver = neutron.agent.firewall.NoopFirewallDriver
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# Example: firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
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