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+# Unfiltered virtual interfaces in VNFs #
+
+## Proposer ##
+- Gerardo Garcia (Telefonica)
+- Alfonso Tierno (Telefonica)
+- Francisco Javier Ramon (Telefonica)
+
+## Type ##
+**Feature**
+
+## Target MDG/TF ##
+UI, SO, RO
+
+## Description ##
+When VLDs are created as overlay networks on an NFVI, some VIMs like Openstack
+implement some security policies that apply L2-L4 filtering rules to the frames
+in those networks. By default, when creating VLDs (networks in VIMs) and when
+attaching VDUs to the VLDs (attaching a VM to a network in a VIM), those
+security policies are created in the VIM.
+
+Those security policies (e.g. port security in Openstack) can be disabled at a
+network level or at port level in the VIM. However, this ability to disable those
+security policies has not been implemented as an end-to-end option in OSM.
+
+This feature proposes the addition of a parameter to enable or disable that port
+security per VDU/VM interface. This will affect the data model for the VDU
+managed by the SO, will affect the UI, which should offer the option to enable or
+disable it, and will affect the RO, which should specify that capability down to
+the VIMs that support it.
+
+## Demo or definition of done ##
+An end-to-end use case is required, where the user creates a VNF in the UI and
+disables the filtering policy on a VM interface. Once the VNF is instantiated as
+part of a NS instance, it should be checked in the VIM that the filtering policy
+has been disabled in that interface/port, while in the network should be enabled.
+