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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+=============================================================
+Group Based Policy Driver for One Convergence NVSD Controller
+=============================================================
+
+https://blueprints.launchpad.net/group-based-policy/+spec/gbp-oc-nvsd-driver
+
+This blueprint proposes a Group Based Policy (GBP) plugin driver to realize
+GBP policy with One Convergence NVSD controller.
+
+Problem description
+===================
+
+One Convergence NVSD controller implements an overlay fabric to provide
+virtual networks and enable the deployment of network services in the
+virtual networks. GBP plugin framework provides the capability to use
+different drivers to render the policy definition using a specific technology.
+One Convergence GBP driver is required to implement the GBP APIs [1] using the
+connectivity, policy flow and service insertion primitives provided by NVSD
+controller.
+
+Proposed change
+===============
+
+We propose the addition of a new GBP driver to implement the GBP APIs [1] and
+render the policy using the NVSD controller. This driver will proxy the APIs
+via REST interface to the NVSD controller. The GBP driver for NVSD controller
+will implement the PolicyDriver interface as defined in the abstract base class
+services.grouppolicy.group_policy_driver_api.PolicyDriver.
+
+Alternatives
+------------
+
+None
+
+Data model impact
+-----------------
+
+None (existing GBP model is used)
+
+REST API impact
+---------------
+
+None
+
+Security impact
+---------------
+
+None
+
+Notifications impact
+--------------------
+
+None
+
+Other end user impact
+---------------------
+
+The driver will reuse the configuration for NVSD Neutron plugin [2] to access
+the NVSD controller.
+
+Performance Impact
+------------------
+
+This driver should allow for a more scalable solution of GBP deployments
+using the NVSD controller.
+
+Other deployer impact
+---------------------
+
+None
+
+Developer impact
+----------------
+
+None
+
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Hemanth Ravi (hemanthravi)
+
+Subrahmanyam Ongole (songole)
+
+
+Work Items
+----------
+
+1. Developing the NVSD GBP driver
+
+Dependencies
+============
+
+Group Based Policy Plugin
+
+Testing
+=======
+
+Unit tests will be provided.
+
+The 3rd party One Convergence CI setup will be enhanced to cover the
+testing of NVSD GBP driver using the NVSD controller.
+
+Documentation Impact
+====================
+
+Documentation needs to be updated to reflect the addition of a new
+GBP driver and it's configuration parameters.
+
+References
+==========
+
+.. [1] Group-based Policy Abstractions: https://review.openstack.org/#/c/123494/
+
+.. [2] NVSD Neutron Plugin: https://review.openstack.org/#/c/69246/