Adding ovsnfv scenario docs

Copied these docs from https://gerrit.opnfv.org/gerrit/#/c/18563/
These should be in the feature/scenarion project repo for better information control by the projects.
Added some notes to the installer links indicating they need to be updated when the final URL's are available.

co-author: Billy O'Mahony <billy.o.mahony@intel.com>
Change-Id: I21bfca06e4a8d117bb10b7b79504eb20aa62d4b7
Signed-off-by:Christopher Price <christopher.price@ericsson.com>

2 files changed, 62 insertions, 0 deletions

diff --git a/docs/scenarios/os-nosdn-ovs/index.rst b/docs/scenarios/os-nosdn-ovs/index.rst
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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) Intel Corporation
+
+.. This document will be used to provide a description of the scenario for an end user.
+.. You should explain the purpose of the scenario, the types of capabilities provided and
+..  the unique components that make up the scenario including how they are used.
+
+=====================================
+os-nosdn-ovs overview and description
+=====================================
+
+.. toctree::
+   :maxdepth: 3
+
+   ./scenario.description.rst
+
diff --git a/docs/scenarios/os-nosdn-ovs/scenario.description.rst b/docs/scenarios/os-nosdn-ovs/scenario.description.rst
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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) Intel Corporation
+
+Introduction
+============
+This scenario installs the latest DPDK-enabled Open vSwitch component,
+version - 2.5.90 based on DPDK 16.07.
+
+Scenario components and composition
+===================================
+This scenario is currently able to be installed using the Fuel and Apex installers.
+For details on how to install the ovsnfv scenarion using these installer tools
+please refer to the installation instructions at:
+  * Fuel installation instruction: http://artifacts.opnfv.org/colorado/fuel/docs/installation-instruction.html
+  * Apex installation instruction: http://artifacts.opnfv.org/colorado/apex/docs/installation-instruction/index.html
+
+.. Above links need to be updated with the eventual release URL's.  This will need to be done closer to the
+.. release date once the project and docs team have a solution ready and the final version of the installation
+.. documents are done.
+
+Scenario usage overview
+=======================
+After installation use of the scenario requires no further action by the user.
+Traffic on the private network will automatically be processed by the upgraded
+DPDK datapath.
+
+Limitations, Issues and Workarounds
+===================================
+The same limitations that apply to using Fuel DPDK-enabled interfaces also apply
+when using this scenario. Including:
+
+* Fuel9 OVS-DPDK support works only for VLAN segmentation.
+* Only interfaces running the private network (and no other network) can be
+  supported so each node needs a separate interface dedicated to the private network.
+* The nodes with dpdk enabled interfaces will need to have hugepages
+  configured and some cores reserved for dpdk.
+
+
+References
+==========
+
+For more information on the OPNFV Colorado release, please visit
+http://www.opnfv.org/colorado
+