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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+============================================
+Network Interface Resource using Biosdevname
+============================================
+
+https://bugs.launchpad.net/ironic-python-agent/+bug/1635351
+https://bugs.launchpad.net/ironic-inspector/+bug/1635351
+
+Currently, the hardware inspection collects the MAC address, IP address and
+kernel given name of the network interface but does not collect the bios given
+name for the network interface. The deployer needs the bios given name of
+network interface to setup network configuration automation on multi NIC nodes.
+In this spec, we want to add an extra field 'biosdevname' to network interface
+inventory, collected by ``default`` collector of ironic-python-agent. The extra
+field is fetched using `biosdevname <https://linux.die.net/man/1/biosdevname>`_
+utility. Once the node inspection is successfuil, the collected hardware
+details from the ramdisk is stored in swift object as JSON encoded string.
+
+Problem description
+===================
+
+The classic naming scheme for network interfaces applied by the kernel is to
+simply assign names beginning with "eth0", "eth1", ... to all interfaces as
+they are probed by the drivers. Kernel name is not fixed, it changes on every
+boot. This can have serious security implications, for example, in firewall
+rules that are coded for certain naming schemes are sensitive to unpredictable
+name changes.
+
+To fix this problem we need a consistent and stable naming scheme for network
+interfaces. One solution is the utility named biosdevname. Biosdevname finds
+fixed slot topology information in certain firmware interfaces and uses them
+to assign fixed names to interfaces which incorporate their physical location
+on the motherboard. This will help to provide a consistent of mapping kernel
+name with system.
+
+The data collected from the collector would enable us to create config files
+to script provisioning of nodes. For example, as the system boots, it uses
+these files to determine what network interfaces to bring up and how to
+configure them. So when we have a multiple NIC we need unique names for
+network interfaces to configure and this can be obtained from the
+proposed spec.
+
+Proposed change
+===============
+
+The proposed change is to add an 'biosdevname' field to network interface
+inventory which is collected by ``default`` collector of ironic-python-agent
+inspector module, which will return a full list of inventory to ironic
+inspector.
+
+The requested change will be in the class NetworkInterface, HardwareManager,
+and GenericHardwareManager. The list will consist of dicts containing
+biosdevname field added to existing network interface details::
+
+    "inventory":
+    {
+        ...,
+        ...,
+        "interface":[
+        {
+            ...,
+            ...,
+            "name": "eth0",
+            "ip": "172.24.42.100",
+            "mac: "52:54:00:52:bc:2c",
+            "biosdevname": "em0",
+            ...,
+            ...,
+        }
+    ],
+    ...,
+    ...,
+    }
+
+Alternatives
+------------
+
+None
+
+Data model impact
+-----------------
+
+None
+
+HTTP API impact
+---------------
+
+None
+
+Client (CLI) impact
+-------------------
+
+None
+
+Ironic python agent impact
+--------------------------
+
+The changes proposed above will be implemented in IPA
+
+Performance and scalability impact
+----------------------------------
+
+None
+
+Security impact
+---------------
+
+None
+
+Deployer impact
+---------------
+
+None
+
+Developer impact
+----------------
+
+None
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  Annie Lezil <annie-lezil>
+
+Work Items
+----------
+    * create a tooling module for biosdevname to collect bios given name.
+    * add an extra field to network interface inventory which is collected by
+      ``default`` collector of ironic-python-agent inspector module.
+    * document the new feature.
+
+Dependencies
+============
+
+None
+
+Testing
+=======
+
+Unit test cases will be added.
+
+References
+==========
+
+.. [1] https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
+.. [2] https://linux.die.net/man/1/biosdevname
+