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Difference between revisions of "Neutron/TrunkPort"

(→‎Overview)
(→‎Design)
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* [https://etherpad.openstack.org/p/trunkport-design open design questions (etherpad.openstack.org)]
 
* [https://etherpad.openstack.org/p/trunkport-design open design questions (etherpad.openstack.org)]
 
* [https://etherpad.openstack.org/p/trunk-port-design-log log of design decisions (etherpad.openstack.org)]
 
* [https://etherpad.openstack.org/p/trunk-port-design-log log of design decisions (etherpad.openstack.org)]
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 +
=== openvswitch vlan model ===
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 +
<pre>
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# create trunk bridge
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ovs-vsctl --may-exist add-br TRUNK-BRIDGE -- del-flows TRUNK-BRIDGE
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# patch trunk bridge to integration bridge
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ovs-vsctl add-port TRUNK-BRIDGE PATCH-TRUNK-END-PORT -- set Interface PATCH-TRUNK-END-PORT type=patch options:peer=PATCH-INT-END-PORT
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ovs-vsctl add-port br-int PATCH-INT-END-PORT -- set Interface PATCH-INT-END-PORT type=patch options:peer=PATCH-TRUNK-END-PORT
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# install default drop flows on patch ports
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ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=2,in_port=PATCH-TRUNK-END-OFPORT,actions=drop
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ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=2,in_port=PATCH-INT-END-OFPORT,actions=drop
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# install remap flows for untagged traffic (default subport)
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ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=COMPUTE-INTERNAL-VLAN-ID,in_port=PATCH-TRUNK-END-OFPORT,actions=strip_vlan,normal
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ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=0xffff,in_port=PATCH-INT-END-OFPORT,actions=mod_vlan_vid:COMPUTE-INTERNAL-VLAN-ID,normal
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# install remap flows for tagged traffic (other subports)
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ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=COMPUTE-INTERNAL-VLAN-ID,in_port=PATCH-TRUNK-END-OFPORT,actions=mod_vlan_vid:INNER-VLAN-ID,normal
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ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=INNER-VLAN-ID,in_port=PATCH-INT-END-OFPORT,actions=mod_vlan_vid:COMPUTE-INTERNAL-VLAN-ID,normal
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# make the tap port pass all tags
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ovs-vsctl set Port TAP-PORT vlan_mode=trunk
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</pre>
  
 
== Work Items ==
 
== Work Items ==

Revision as of 14:25, 18 August 2015

Overview

Neutron extension to access lots of neutron networks over a single vNIC as encapsulated traffic.

Design

openvswitch vlan model

# create trunk bridge
ovs-vsctl --may-exist add-br TRUNK-BRIDGE -- del-flows TRUNK-BRIDGE

# patch trunk bridge to integration bridge
ovs-vsctl add-port TRUNK-BRIDGE PATCH-TRUNK-END-PORT -- set Interface PATCH-TRUNK-END-PORT type=patch options:peer=PATCH-INT-END-PORT
ovs-vsctl add-port br-int PATCH-INT-END-PORT -- set Interface PATCH-INT-END-PORT type=patch options:peer=PATCH-TRUNK-END-PORT

# install default drop flows on patch ports
ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=2,in_port=PATCH-TRUNK-END-OFPORT,actions=drop
ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=2,in_port=PATCH-INT-END-OFPORT,actions=drop

# install remap flows for untagged traffic (default subport)
ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=COMPUTE-INTERNAL-VLAN-ID,in_port=PATCH-TRUNK-END-OFPORT,actions=strip_vlan,normal
ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=0xffff,in_port=PATCH-INT-END-OFPORT,actions=mod_vlan_vid:COMPUTE-INTERNAL-VLAN-ID,normal

# install remap flows for tagged traffic (other subports)
ovs-ofctl add-flow TRUNK-BRIDGE hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=COMPUTE-INTERNAL-VLAN-ID,in_port=PATCH-TRUNK-END-OFPORT,actions=mod_vlan_vid:INNER-VLAN-ID,normal
ovs-ofctl add-flow br-int hard_timeout=0,idle_timeout=0,priority=3,dl_vlan=INNER-VLAN-ID,in_port=PATCH-INT-END-OFPORT,actions=mod_vlan_vid:COMPUTE-INTERNAL-VLAN-ID,normal

# make the tap port pass all tags
ovs-vsctl set Port TAP-PORT vlan_mode=trunk

Work Items

Links

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