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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
+
+..
+
+=================================
+IPv6 Subnet Attribute API tests
+=================================
+
+https://blueprints.launchpad.net/tempest/+spec/ipv6-subnet-attributes
+
+Add IPv6 API tests for validating Neutron Subnet Extended attributes.
+
+Problem description
+===================
+
+Support for IPv6 is evolving in OpenStack. Neutron now supports two
+extended attributes for IPv6 subnets (ipv6-ra-mode and ipv6-address-mode)
+in the Juno timeframe.
+
+This BP would add the necessary IPv6 API tests in tempest.
+
+Proposed change
+===============
+
+Neutron BP: IPv6 Subnet attributes are implemented as part of the following BP
+- https://blueprints.launchpad.net/neutron/+spec/ipv6-two-attributes
+
+The possible values for the subnet attributes are as follows.
+ - ipv6-ra-mode {dhcpv6-stateful, dhcpv6-stateless, slaac}
+ - ipv6-address-mode {dhcpv6-stateful, dhcpv6-stateless, slaac}
+
+The two IPv6 attributes provide flexibility to choose the type of IPv6 network.
+However, not all combinations of the two attributes are valid. Valid and
+invalid combinations are captured in the Neutron ipv6-provider-nets-slaac.rst
+blueprint and also at the following link.
+- https://www.dropbox.com/s/9bojvv9vywsz8sd/IPv6%20Two%20Modes%20v3.0.pdf
+
+This BP would add new API tests in tempest to validate both positive and
+negative tests.
+
+Neutron IPv6 Subnet attributes are supported in Juno+ releases.
+Hence, a config flag would be added to tempest to skip the tests while
+running against icehouse jobs like check-tempest-dsvm-neutron-icehouse.
+
+Alternatives
+------------
+
+None
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+ - Sridhar Gaddam <sridhargaddam@enovance.com>
+ - Sean M. Collins <sean_collins2@cable.comcast.com>
+
+
+Milestones
+----------
+
+Target Milestone for completion:
+  Juno-2
+
+Work Items
+----------
+The work items include adding IPv6 API tests for
+
+- Positive test cases.
+- Negative tests.
+- Adding a config flag support to tempest to skip the tests while running on icehouse jobs (https://review.openstack.org/#/c/93502)
+
+Dependencies
+============
+
+- Devstack needs to populate the config flag during the setup, so that
+  tempest could decide whether to run the tests or skip them.
+  The required changes in Devstack would be done as part of the following BP.
+  https://blueprints.launchpad.net/devstack/+spec/tempest-ipv6-attributes-support