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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
.. (c) Bin Hu (AT&T) and Sridhar Gaddam (RedHat)

==========================================
IPv6 Gap Analysis with Open Daylight Boron
==========================================

This section provides users with IPv6 gap analysis regarding feature requirement with
Open Daylight Boron Official Release. The following table lists the use cases / feature
requirements of VIM-agnostic IPv6 functionality, including infrastructure layer and VNF
(VM) layer, and its gap analysis with Open Daylight Boron Official Release.

**Open Daylight Boron Status**

There are 2 options in Open Daylight Boron to provide Virtualized Networks:

1 ``Old Netvirt``: netvirt implementation used in Open Daylight Beryllium Release
  identified by feature ``odl-ovsdb-openstack``

2 ``New Netvirt``: netvirt implementation which will replace the Old Netvirt in the
  future releases based on a more modular design. It is identified by feature
  ``odl-netvirt-openstack``

.. table::
  :class: longtable

  +--------------------------------------------------+---------------------------------------------+--------------------------------------------------------------+
  |Use Case / Requirement                            |           Supported in ODL Boron            |Notes                                                         |
  |                                                  +---------------------+-----------------------+                                                              |
  |                                                  |     Old Netvirt     |      New Netvirt      |                                                              |
  |                                                  |(odl-ovsdb-openstack)|(odl-netvirt-openstack)|                                                              |
  +==================================================+=====================+=======================+==============================================================+
  |REST API support for IPv6 subnet creation in ODL  |Yes                  |Yes                    |Yes, it is possible to create IPv6 subnets in ODL using       |
  |                                                  |                     |                       |Neutron REST API.                                             |
  |                                                  |                     |                       |                                                              |
  |                                                  |                     |                       |For a network which has both IPv4 and IPv6 subnets, ODL       |
  |                                                  |                     |                       |mechanism driver will send the port information which includes|
  |                                                  |                     |                       |IPv4/v6 addresses to ODL Neutron northbound API. When port    |
  |                                                  |                     |                       |information is queried it displays IPv4 and IPv6 addresses.   |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |IPv6 Router support in ODL                        |**No**               |**Partial**            |IPv6 Router support is work in progress in ODL.               |
  |                                                  |                     |                       |                                                              |
  |1. Communication between VMs on same compute node |                     |                       |Currently communication between VMs on the same network is    |
  |2. Communication between VMs on different compute |                     |                       |supported, and the support for the other modes is work in     |
  |   nodes (east-west)                              |                     |                       |progress.                                                     |
  |3. External routing (north-south)                 |                     |                       |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |IPAM: Support for IPv6 Address assignment modes.  |**No**               |Yes                    |ODL IPv6 Router supports all the IPv6 Address assignment modes|
  |                                                  |                     |                       |along with Neutron DHCP Agent.                                |
  |1. SLAAC                                          |                     |                       |                                                              |
  |2. DHCPv6 Stateless                               |                     |                       |                                                              |
  |3. DHCPv6 Stateful                                |                     |                       |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |When using ODL for L2 forwarding/tunneling, it is |Yes                  |Yes                    |                                                              |
  |compatible with IPv6.                             |                     |                       |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |Full support for IPv6 matching (i.e. IPv6, ICMPv6,|**Partial**          |**Partial**            |Security Groups for IPv6 is a work in progress, and some      |
  |TCP, UDP) in security groups. Ability to control  |                     |                       |partial support is available.                                 |
  |and manage all IPv6 security group capabilities   |                     |                       |                                                              |
  |via Neutron/Nova API (REST and CLI) as well as via|                     |                       |                                                              |
  |Horizon                                           |                     |                       |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |Shared Networks support                           |Yes                  |Yes                    |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |IPv6 external L2 VLAN directly attached to a VM.  |**ToDo**             |**ToDo**               |                                                              |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+
  |ODL on an IPv6 only Infrastructure.               |**No**               |**Work in Progress**   |Deploying OpenStack with ODL on an IPv6 only infrastructure   |
  |                                                  |                     |                       |where the API endpoints are all IPv6 addresses.               |
  +--------------------------------------------------+---------------------+-----------------------+--------------------------------------------------------------+