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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) Tim Irnich (tim.irnich@ericsson.com) and Nikolas Hermanns (nikolas.hermanns@ericsson.com)
-
-Introduction
-============
-.. In this section explain the purpose of the scenario and the types of capabilities provided
-
-Many Telecom network functions are relying on layer-3 infrastructure services, within a VNF
-between components, or towards existing external networks. In many cases, these external
-networks are implemented in MPLS/BGP technology in existing service provider wide-area-networks (WAN).
-This proven technology provides a good mechanism for inter-operation of a NFV Infrastructure (NFVI)
-and wide-area networks (WAN) and is the main capability provided by the OPNFV SDNVPN project.
-
-.. should we explain here what a deployment scenario is?
-The OPNFV SDNVPN feature is made available through additional OPNFV deployment scenarios, which are derived
-from the baseline scenarios os-odl_l2-nofeature and os-odl_l3-nofeature. This document
-provides an outline of the os-odl_l2-bgpvpn scenarios including guidelines and references to
-required installation, software and hardware configuration documents.
-
-Scenario components and composition
-===================================
-.. In this section describe the unique components that make up the scenario,
-.. what each component provides and why it has been included in order
-.. to communicate to the user the capabilities available in this scenario.
-
-The SDN VPN feature enhances OPNFV's baseline OpenStack deployment with the
-possibility to configure BGP based VPNs using the Neutron API extension and service plugin
-provided by the OpenStack Neutron
-Stadium project BGPVPN. The BGPVPN project consists of a Neutron API extension and a
-service plugin which has a driver framework similar to the ML2 plugin. BGPVPN today
-has a quite large number of backend drivers (Bagpipe, OpenContrail,
-Nuage and OpenDaylight currently). In OPNFV, currently only the OpenDaylight driver
-is supported.
-
-The BGPVPN ODL driver maps the BGPVPN API onto the OpenDaylight NetVirt service, which exposes the data
-center overlay like a virtual router to which Neutron Networks and Routers (and in the future also Ports)
-are connected. NetVirt has access to the state of the Neutron API through the OpenDaylight
-Neutron Northbound Interface module, which has been enhanced to support the BGPVPN API extension.
-It uses an internal mesh of VxLAN tunnels to interconnect the vSwitches on the data
-center compute nodes. For the purpose of BGP based route exchange with other BGP speakers the ODL
-controller makes use of Quagga BGP as an external BGP speaker.
-
-
-Scenario usage overview
-=======================
-.. Provide a brief overview on how to use the scenario and the features available to the
-.. user. This should be an "introduction" to the user guide document, and explicitly link to it,
-.. where the specifics of the features are covered including examples and API's
-
- When would I use this scenario, what value does it provide? Refer to the user guide for details
- of configuration etc...
-
-Configuring SDNVPN features
----------------------------
-
-Each installer has specific procedures to deploy the OPNFV platform so that the SDNVPN feature is enabled.
-
-Fuel installer configuration
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-To install the SDNVPN feature using Fuel, follow the Fuel installation guide ensuring to select the SDNVPN
-feature when prompted <add link to Fuel docs once artifact locations are known>.
-
-This will trigger installation of the OpenStack BGPVPN API extension for
-Neutron, set up for using the ODL driver, in addition to vanilla Neutron.
-In addition, the required karaf features will be activated when ODL is installed and the compute nodes
-will be configured including the VPN Service internal transport tunnel mesh.
-
-No post-deploy configuration is necessary. The Fuel BGPVPN plugin and the ODL plugin
-should set up the cluster ready for BGPVPNs being created.
-
-APEX installer configuration
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-To install the SDNVPN feature using the APEX installer, follow the APEX installation guide and
-activate the SDNVPN feature when prompted.
-
-Limitations, Issues and Workarounds
-===================================
-.. Explain scenario limitations here, this should be at a design level rather than discussing
-.. faults or bugs. If the system design only provide some expected functionality then provide
-.. some insight at this point.
-
-Currently, in OPNFV only ODL is supported as a backend for BGPVPN. API calls are
-mapped onto the ODL NetVirt REST API through the BGPVPN ODL driver and the
-ODL Neutron Northbound module.
-
-No DPDK-enabled vhost user ports are supported.
-
-Integration with data center gateway will not work due to missing OVS patches for MPLSoGRE.
-
-References
-==========
-
-For more information on the OPNFV Danube release, please visit
-http://www.opnfv.org/danube