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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) Ericsson AB
+
+======================
+VPN test specification
+======================
+
+.. toctree::
+   :maxdepth: 2
+
+Scope
+=====
+
+The VPN test area evaluates the ability of the system under test to support VPN networking
+for virtual workdloads.  The tests in this suite will evaluate establishing VPN networks,
+publishing and communication between endpoints using BGP and tear down of the networks.
+
+References
+================
+
+This test suite assumes support for the following specifications:
+
+- RFC 4364 - BGP/MPLS IP Virtual Private Networks
+
+  - https://tools.ietf.org/html/rfc4364
+
+- RFC 4659 - BGP-MPLS IP Virtual Private Network
+
+  - https://tools.ietf.org/html/rfc4659
+
+- RFC 2547 - BGP/MPLS VPNs
+
+  - https://tools.ietf.org/html/rfc2547
+
+Definitions and abbreviations
+=============================
+
+The following terms and abreviations are used in conunction with this test suite
+
+- BGP - Border gateway protocol
+- eRT - Export route target
+- IETF - Internet Engineering Task Force
+- iRT - Import route target
+- NFVi - Network functions virtualization infrastructure
+- Tenant - An isolated set of virtualized infrastructures
+- VM - Virtual machine
+- VPN - Virtual private network
+- VLAN - Virtual local area network
+
+System Under Test (SUT)
+=======================
+
+The system under test is assumed to be the NFVi in operation on an Pharos compliant infrastructure.
+
+Test Suite Structure
+====================
+
+The test suite is structured in some way that I am unable to articulate at this time.
+
+Test Descriptions
+=================
+
+----------------------------------------------------------------
+Test Case 1 - VPN provides connectivity between Neutron subnets
+----------------------------------------------------------------
+
+Use case specification
+----------------------
+
+This test evaluate the instance where an NFVi tenant wants to use a BGPVPN to provide
+connectivity between VMs on different Neutron networks and Subnets that reside on different hosts.
+
+Test preconditions
+------------------
+
+2 compute nodes are available, denoted Node1 and Node 2 in the following.
+
+Basic test flow execution description and pass/fail criteria
+------------------------------------------------------------
+
+Set up VM1 and VM2 on Node1 and VM3 on Node2, all having ports in the same Neutron Network N1
+and all having 10.10.10/24 addresses (this subnet is denoted SN1 in the following).
+
+Set up VM4 on Node1 and VM5 on Node2, both having ports in Neutron Network N2
+and having 10.10.11/24 addresses (this subnet is denoted SN2 in the following).
+
+* Create VPN1 with eRT<>iRT and associate SN1 to it
+* Test action 1: SSH into VM1 and ping VM2, test passes if ping works
+* Test action 2: SSH into VM1 and ping VM3, test passes is ping works
+* Test action 3: SSH into VM1 and ping VM4, test passes if ping does not work
+* Associate SN2 to VPN1
+* Test action 4: Ping from VM4 to VM5 should work
+* Test action 5: Ping from VM1 to VM4 should not work
+* Test action 6: Ping from VM1 to VM5 should not work
+* Configure iRT=eRT in VPN1
+* Test action 7: Ping from VM1 to VM4 should work
+* Test action 8: Ping from VM1 to VM5 should work
+
+The pass criteria for this test case is that all instructions are able to be carried out
+according to the described behaviour without deviation.
+A negative result will be generated if the above is not met in completion.
+
+Post conditions
+---------------
+
+TBD - should there be any other than the system is in the same state it started out as?