docs/doc/source/system_configuration/kubernetes/converting-a-duplex-system-to-switch-based-connection.rst
Stone ecae991cca System Configuration reorg
Organized SysConf Kubernetes and OpenStack content into subdirs and modified
index along lines of Planning layout.

Signed-off-by: Stone <ronald.stone@windriver.com>
Change-Id: Ia17c015b2083a39fcae4ac545fa10cb5445b4cb2
2021-01-29 09:41:28 -05:00

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.. egs1552672694354
.. _converting-a-duplex-system-to-switch-based-connection:
==================================================
Convert a Duplex System to Switch-Based Connection
==================================================
On a |prod| |AIO| Duplex system configured to use direct connections for
the management and cluster host networks, you can convert to switch-based
connections.
The connection type is initially configured at installation. You can change
it at any time. You must use the CLI to make the change.
.. xbooklink For more about the available connection modes,
see |planning-doc|: `Networks for a Duplex System <networks-for-a-starlingx-duplex-system>`.
.. rubric:: |prereq|
Extra network cables are required to connect both controllers to the |ToR|
switch.
The |ToR| switch must be configured correctly for communication with the
controllers.
.. rubric:: |proc|
#. Use the :command:`system modify` command to specify switch-based
connection \(**duplex**\).
.. code-block:: none
~(keystone_admin)$ system modify --system_mode=duplex
This raises **Config-out-of-date** alarm messages on both controllers.
#. Lock the standby controller.
#. Disconnect the management and infrastructure cables from the standby
controller.
This raises **Port failed** and **Interface failed** alarms on the active
controller for the management and infrastructure interfaces.
#. Connect both controllers to the |ToR| switch.
Connect the existing cables from the active controller to the |ToR| switch.
Use additional cables to connect the standby controller to the |ToR|
switch.
Wait for the network interface alarms on the active controller to be
cleared.
#. Unlock the standby controller to update its configuration.
Wait for the controller to be reported as **Unlocked**, **Available**,
and **Online**, and for its **Config-out-of-date** alarm message to be
cleared.
#. Swact the controllers.
#. Lock and then unlock the new standby controller to update its
configuration.
Wait for the controller to be reported as **Unlocked**, **Available**,
and **Online**, and for its **Config-out-of-date** alarm message to be
cleared.
.. rubric:: |result|
The system is now reconfigured to use switch-based connections for the
internal networks.