The host server sets the serial management port variables when it starts up, so these variables are read-only. You do not need to set or adjust them.
ALOM uses the serial management port variables to report on the serial management port (SERIAL MGT) settings on the host server. To view the settings for these variables, from the ALOM command shell, use the showsc command. To view the settings using the scadm utility, use the scadm show command.
You can view settings for the following serial management port variables, but you cannot set or adjust them:
About ALOM configuration variables