.. _nic-replacement-with-the-same-vendor-and-device-id-32942b7b05e5:

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Replace a NIC with the same vendor and device-id
================================================

The following procedure allows the replacement of a |NIC| on a system without
requiring a system re-install and re-configuration, in the case of the
replaced NIC having the same vendor or device ID information.

Since this procedure reuses same vendor and device ID information and
capabilities, the interface's new |MAC| will be updated internally and no
reconfiguration is required. Assuming that the replacement will occur on
the same |PCI| slot of the previous card, the procedure can be executed for all
types of NIC classes (``pci-sriov``, ``data``, ``pci-passthrough``, and
``platform``).

.. rubric:: |proc|

#.  Lock the host.

    .. code-block:: none

        ~(keystone_admin)]$ system host-lock <hostname>

    Wait for the host to be reported as locked.

#.  Power down the host manually and make the NIC card replacement.

#.  Power up the host.

#.  Unlock the host.

    .. code-block:: none

        ~(keystone_admin)]$ system host-unlock <hostname>

.. rubric:: |result|

The host is rebooted, and its Availability State is reported as ``In-Test``.
After a few minutes, it is reported as ``Unlocked``, ``Enabled``, and
``Available``.