sdn-switch.markdown

 # Manage the SDN Switch
 
-The switch is accessible using the IPMI network or the SDN network:
+The switch is accessible using the IPMI network or the SDN network. Therefore you have to connect to a host which can access one of those two networks.
+
 ```
 telnet 10.1.0.14
 OR
 telnet 10.1.3.14
 ```
+
 Username: ``operator``
 
+## Different modes
+If you log in as operator, you are in the most save mode where you can e.g. print the configuration or the current status. 
+This __operator-mode__ is signed by ``!PFS1>`` as prompt.
+
+To switch to the __administrator-mode__ execute the command ``enable`` and you will see ``!PFS1#`` as a prompt. In this mode additional commands are available. To go back enter ``quit``.
+
+From the administrator-mode you can enter the __configure-mode__ where you can set the switch configuration. Therefore enter ``configure`` within an administrator-mode. In this mode you have different commands available which are e.g. sub-menus of the configuration (backwards using ``top``). You can leave the configure-mode with ``quit``.
+
+## Fundamental commands
+
+``?`` prints always possible commands at the current mode (see above).
+
+### operator mode
+tbd
+
+### administrator mode
+tbd
 
+### configure mode
+tbd