Avocent CCM4850 - Manual (Page 32)

20 CCM4850 Installer/User Guide
DISCONNECT
- or -
Allow the port to time-out due to inactivity. In this case, a notification message is issued and the
serial CLI session returns to CLI mode. This time-out may occur while you are in CLI mode.
- or -
For modem connections, if a carrier drop occurs, the serial CLI session is automatically logged off.
For more information, see Quit Command on page 48 and Disconnect Command on page 41.
To end another user’s session:
Issue a User Logout command.
USER LOGOUT <username>
A message is sent and the Telnet or SSH connection is dropped.
For more information, see User Logout command on page 67. For information about preempting a
user’s session, see Connecting to devices using Telnet on page 12.
Session time-out
The CCM console management appliance monitors data traffic when you are connected to an
attached serial device. You may specify a time-out value with the Server CLI command. You may
also specify a time-out value for each port with the Port Set command. When no data is received
from the connected user for the configured number of minutes, the connection is terminated.
The following time-out values are used:
•
For a Telnet session, the Server CLI time-out value is used.
• For a serial port session, if the port’s configured time-out value is zero, the Server CLI time-
out value is used, even if it is also zero.
• For a serial port session, if the port’s configured time-out value is non-zero, that value is used.
Preemption
Depending on configured access levels, a user who is connecting to a port (the connecting user)
may disconnect another user of equal or lower access (the current user). For preemption purposes,
the hierarchy of access levels is APPLIANCEADMIN > ADMIN > user.
If the connecting user’s access level is lower than the current user’s access level, the connecting
user will receive an In Use message and the connection will be dropped.
If the connecting user’s access level is equal to or higher than the owning user’s access level, an In
Use by owning user message will be displayed. The connecting user may then choose to preempt the
current user’s session. If the current user’s session is preempted, an appropriate message is displayed.
For more information, see Access rights and levels on page 21.
Managing User Accounts
The CCM user database can store information for up to 64 user accounts.