42 lines
1.8 KiB
Plaintext
42 lines
1.8 KiB
Plaintext
OpenDaylight ML2 MechanismDriver
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================================
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OpenDaylight is an Open Source SDN Controller developed by a plethora of
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companies and hosted by the Linux Foundation. The OpenDaylight website
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contains more information on the capabilities OpenDaylight provides:
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http://www.opendaylight.org
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Theory of operation
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===================
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The OpenStack Neutron integration with OpenDaylight consists of the ML2
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MechanismDriver which acts as a REST proxy and passess all Neutron API
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calls into OpenDaylight. OpenDaylight contains a NB REST service (called
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the NeutronAPIService) which caches data from these proxied API calls and
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makes it available to other services inside of OpenDaylight. One current
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user of the SB side of the NeutronAPIService is the OVSDB code in
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OpenDaylight. OVSDB uses the neutron information to isolate tenant networks
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using GRE or VXLAN tunnels.
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How to use the OpenDaylight ML2 MechanismDriver
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===============================================
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To use the ML2 MechanismDriver, you need to ensure you have it configured
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as one of the "mechanism_drivers" in ML2:
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mechanism_drivers=opendaylight
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The next step is to setup the "[ml2_odl]" section in either the ml2_conf.ini
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file or in a separate ml2_conf_odl.ini file. An example is shown below:
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[ml2_odl]
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password = admin
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username = admin
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url = http://192.168.100.1:8080/controller/nb/v2/neutron
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When starting OpenDaylight, ensure you have the SimpleForwarding application
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disabled or remove the .jar file from the plugins directory. Also ensure you
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start OpenDaylight before you start OpenStack Neutron.
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There is devstack support for this which will automatically pull down OpenDaylight
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and start it as part of devstack as well. The patch for this will likely merge
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around the same time as this patch merges.
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