Add ipv6-provider-nets-slaac
Change-Id: Id06bee32b4105767cc35b5f86db0cb803874849d
This commit is contained in:
parent
d76bec4015
commit
176dd73fd4
|
@ -0,0 +1,124 @@
|
||||||
|
============================================
|
||||||
|
Provider Networking - upstream SLAAC Support
|
||||||
|
============================================
|
||||||
|
|
||||||
|
It should be possible to create a Provider Network in Neutron, that uses an
|
||||||
|
upstream switch or router that advertises RA's - so that instances can use
|
||||||
|
SLAAC to configure their IPv6 networking, while still utilizing the Neutron
|
||||||
|
APIs for security group rules.
|
||||||
|
|
||||||
|
https://blueprints.launchpad.net/neutron/+spec/ipv6-provider-nets-slaac
|
||||||
|
|
||||||
|
Problem description
|
||||||
|
===================
|
||||||
|
|
||||||
|
A deployer of OpenStack that wishes to use IPv6 and already has
|
||||||
|
configured IPv6 on northbound networking devices, may wish to
|
||||||
|
advertise IPv6 routes by having non-OpenStack hardware transmit
|
||||||
|
ICMPv6 Router Advertisement packets.
|
||||||
|
|
||||||
|
|
||||||
|
Proposed change
|
||||||
|
===============
|
||||||
|
|
||||||
|
OpenStack Neutron should support this configuration, and display the
|
||||||
|
correct IP address for instances, since Neutron has enough information
|
||||||
|
to generate the EUI-64 address.
|
||||||
|
|
||||||
|
Alternatives
|
||||||
|
------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
|
||||||
|
Data model impact
|
||||||
|
-----------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
REST API impact
|
||||||
|
---------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
Security impact
|
||||||
|
---------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
Notifications impact
|
||||||
|
--------------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
Other end user impact
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
* This change will require support in python-neutronclient for the two
|
||||||
|
IPv6 subnet attributes - which `is currently in review <https://review.openstack.org/#/c/75871/>`_
|
||||||
|
|
||||||
|
Performance Impact
|
||||||
|
------------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
Other deployer impact
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
* This change will change the behavior of Neutron in specific
|
||||||
|
configurations, when the IPv6 attributes for Subnets are set.
|
||||||
|
Previously, the attributes were no-ops.
|
||||||
|
|
||||||
|
Developer impact
|
||||||
|
----------------
|
||||||
|
|
||||||
|
None
|
||||||
|
|
||||||
|
|
||||||
|
Implementation
|
||||||
|
==============
|
||||||
|
|
||||||
|
* Subnets will be created with the `ipv6_address_mode` set to `slaac`
|
||||||
|
and `ipv6_ra_mode` *not* set.
|
||||||
|
|
||||||
|
* Neutron will calculate the IP address of a port, using the MAC address
|
||||||
|
and the CIDR.
|
||||||
|
|
||||||
|
Assignee(s)
|
||||||
|
-----------
|
||||||
|
|
||||||
|
Primary assignee:
|
||||||
|
scollins
|
||||||
|
|
||||||
|
Work Items
|
||||||
|
----------
|
||||||
|
|
||||||
|
* `Support Subnets that are configured by external RAs <https://review.openstack.org/#/c/86044/>`_
|
||||||
|
|
||||||
|
* `Ensure entries in dnsmasq belong to a subnet using DHCP <https://review.openstack.org/#/c/64578/>`_
|
||||||
|
|
||||||
|
Dependencies
|
||||||
|
============
|
||||||
|
|
||||||
|
* The IPv6 Subnet Attributes must be returned in API calls.
|
||||||
|
|
||||||
|
Testing
|
||||||
|
=======
|
||||||
|
|
||||||
|
* Add unit tests to support Subnets created with only the
|
||||||
|
`ipv6_address_mode` set.
|
||||||
|
|
||||||
|
* Verify that ports with allocations from a subnet with
|
||||||
|
`ipv6_address_mode` set are not touched by the DHCP agent.
|
||||||
|
|
||||||
|
Documentation Impact
|
||||||
|
====================
|
||||||
|
|
||||||
|
Documentation about this network configuration will need to be
|
||||||
|
written.
|
||||||
|
|
||||||
|
|
||||||
|
References
|
||||||
|
==========
|
||||||
|
|
||||||
|
* `Devstack for IPv6 in the Comcast lab <http://lists.openstack.org/pipermail/openstack-dev/2014-February/026589.html>`_
|
Loading…
Reference in New Issue