.. 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 Lithium ============================================ This section provides users with IPv6 gap analysis regarding feature requirement with Open Daylight Lithium 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 Lithium Official Release. .. table:: :class: longtable +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |Use Case / Requirement |Supported in ODL Lithium|Notes | +=============================================================+========================+================================================================================+ |REST API support for IPv6 subnet creation in ODL |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. However, in Lithium release, ODL net-virt provider | | | |does not support IPv6 features (i.e., the actual functionality is missing | | | |and would be available only in the later releases of ODL). | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |IPv6 Router support in ODL |**No** |ODL net-virt provider in Lithium release only supports IPv4 Router. | | | |Support for IPv6 Router is planned in later releases using ``Routing Manager``. | |1. Communication between VMs on same compute node | |In the meantime, if IPv6 Routing is necessary, we can use ODL for L2 | |2. Communication between VMs on different compute nodes | |connectivity and Neutron L3 agent for IPv4/v6 routing. | | (east-west) | | | |3. External routing (north-south) | |**Note**: In Lithium SR3 release, we have the following `issue | | | |`_,| | | |which is fixed `upstream `_ | | | |and `back-ported `_ to | | | |``stable/lithium`` branch on December 15th, 2015. | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |IPAM: Support for IPv6 Address assignment modes. |**No** |Although it is possible to create different types of IPv6 subnets in ODL, | | | |ODL_L3 would have to implement the IPv6 Router that can send out Router | |1. SLAAC | |Advertisements based on the IPv6 addressing mode. Router Advertisement | |2. DHCPv6 Stateless | |is also necessary for VMs to configure the default route. | |3. DHCPv6 Stateful | | | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |When using ODL for L2 forwarding/tunneling, is it compatible |Yes | | |with IPv6. | | | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |Full support for IPv6 matching (i.e., IPv6, ICMPv6, TCP, UDP)|**No** |Security Groups for IPv6 are currently not supported. | |in security groups. Ability to control and manage all IPv6 | | | |security group capabilities via Neutron/Nova API (REST and | | | |CLI) as well as via Horizon. | | | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |Shared Networks support |**No** |ODL currently assumes a single tenant to network mapping and does not | | | |support shared networks among tenants. | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |IPv6 external L2 VLAN directly attached to a VM. |**ToDo** | | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+ |ODL on an IPv6 only Infrastructure. |**ToDo** |Deploying OpenStack with ODL on an IPv6 only infrastructure where the API | | | |endpoints are all IPv6 addresses. | +-------------------------------------------------------------+------------------------+--------------------------------------------------------------------------------+