Add spec for BSN ML2 IVS port binding

Change-Id: I0554d3a83c15cbaf3cc2599ddfbf066cd1ebad79

specs/juno/bsn-ml2-bind-ivs.rst

@@ -0,0 +1,106 @@
+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+==============================================
+Big Switch - Have ML2 driver bind IVS VIF type
+==============================================
+
+https://blueprints.launchpad.net/neutron/+spec/bsn-ml2-bind-ivs
+
+The Big Switch ML2 driver needs to be responsible for binding the IVS VIF type
+since there is no binding agent running for this virtual switch.
+
+
+Problem description
+===================
+
+Currently, the Big Switch ML2 driver is only responsible for configuring VLANs
+in the fabric. It doesn't do anything with the vSwitch so it leaves the
+responsibility of binding the ports to the OpenVSwitch driver. However, it
+needs to support IVS switches as well, which will not have a binding driver
+since they are directly controlled by the backend controller. Therefore, it
+will need to be responisble for responding to the bind_port calls for hosts
+with the IVS switches and mark them as bound.
+
+
+Proposed change
+===============
+
+At the port binding method to the Big Switch ML2 driver and have it respond
+to port binding calls for IVS ports.
+
+Alternatives
+------------
+
+
+Data model impact
+-----------------
+
+
+REST API impact
+---------------
+
+
+Security impact
+---------------
+
+
+Notifications impact
+--------------------
+
+Other end user impact
+---------------------
+
+
+Performance Impact
+------------------
+
+
+Other deployer impact
+---------------------
+Deployers will be able to deploy IVS vswitches with the Big Switch ML2 plugin.
+
+Developer impact
+----------------
+
+
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  kevinbenton
+
+Work Items
+----------
+
+* Add the port binding methods to the ML2 driver
+* Add unit tests
+
+
+Dependencies
+============
+
+N/A
+
+Testing
+=======
+
+In addition to the unit tests, a new 3rd party CI test case will be added
+for IVS deployed under ML2.
+
+Documentation Impact
+====================
+
+Mention that IVS can be used in conjuction with Big Switch Ml2 deployments.
+
+References
+==========
+
+N/A