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authorGeorg Kunz <georg.kunz@ericsson.com>2016-08-11 10:02:29 +0200
committerGeorg Kunz <georg.kunz@ericsson.com>2016-09-16 09:21:47 +0000
commitbe8fbafa73dd6f22fa6fadac1adb82ff47072516 (patch)
tree9a65a6560839877a6f6583c6e0ee07fd26a4cf8e /docs/requirements/use_cases/georedundancy_regions_insances.rst
parent3204eb82c49f51eb3cc20933248d8c857233bce0 (diff)
Preparing files for global review
Change-Id: I5db23e973f936aace0123eb40ac24084ff1bdbce Signed-off-by: Georg Kunz <georg.kunz@ericsson.com>
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-.. This work is licensed under a Creative Commons Attribution 4.0 International License.
-.. http://creativecommons.org/licenses/by/4.0
-
-Connection between different OpenStack regions or cloud instances
------------------------------------------------------------------
-
-Description
-~~~~~~~~~~~
-There should be an API to manage the infrastructure-s networks between two
-OpenStack regions or instances.
-
-The following figure (:numref:`instances-architecture`) shows the architecture
-of the most relevant OpenStack components in multi instance OpenStack
-environment.
-
-.. figure:: images/instances-architecture.png
- :name: instances-architecture
- :width: 50%
-
-The functionality behind the API depends on the underlying network providers (SDN
-controllers) and the networking setup.
-(For example OpenDaylight has an API to add new BGP neighbor.)
-
-OpenStack Neutron should provide an abstracted API for this functionality what
-calls the underlying SDN controllers API.
-
-Derived Requirements
-~~~~~~~~~~~~~~~~~~~~~
-- Possibility to define a remote and a local endpoint
-- As in case of cells the nova-api service is shared it should be possible
- to identify the cell in the API calls
-
-Northbound API / Workflow
-+++++++++++++++++++++++++
-- An infrastructure network management API is needed
-- API call to define the remote and local infrastructure endpoints
-- When the endpoints are created neutron is configured to use the new network.
-
-Data model objects
-++++++++++++++++++
-- local and remote endpoint objects (Most probably IP addresses with some
-additional properties).
-
-Current implementation
-~~~~~~~~~~~~~~~~~~~~~~
- Current OpenStack implementation provides no way to set up the underlay
- network connection.
- OpenStack Tricircle project [TRICIRCLE]_
- has plans to build up inter datacenter L2 and L3 networks.
-
-Gaps in the current solution
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- An infrastructure management API is missing from Neutron where the local and
- remote endpoints of the underlay network could be configured.