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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Requirements
+------------
+
+This section defines requirements for the initial OPNFV SFC implementation,
+including those requirements driving upstream project enhancements.
+
+Minimal Viable Requirement
+++++++++++++++++++++++++++
+
+Deploy a complete SFC solution by integrating OpenDaylight SFC with OpenStack
+in an OPNFV environment.
+
+Detailed Requirements
++++++++++++++++++++++
+
+These are the Euphrates specific requirements:
+
+1 The supported Service Chaining encapsulation will be NSH VXLAN-GPE.
+
+2 The version of OVS used must support NSH.
+
+3 The SF VM life cycle will be managed by the Tacker VNF Manager.
+
+4 The supported classifier is OpenDaylight NetVirt.
+
+5 ODL will be the OpenStack Neutron backend and will handle all networking
+ on the compute nodes.
+
+6 Tacker will use the networking-sfc API to configure ODL
+
+7 ODL will use flow based tunnels to create the VXLAN-GPE tunnels
+
+Long Term Requirements
+++++++++++++++++++++++
+
+These requirements are out of the scope of the Euphrates release.
+
+1 Dynamic movement of SFs across multiple Compute nodes.
+
+2 Load Balancing across multiple SFs
+
+3 Support of a different MANO component apart from Tacker