Default Serial/Modem Conguration Settings Set By the SMU
The SMU sets some serial/modem conguration settings automatically. This information is listed below,
but is not displayed on the screen. The list of these settings is given below. Before this information is
set by the SMU, you must click through the remaining Serial/Modem Channel Conguration sub-task
screens to click the Save button on the last screen.
• Authentication type enables are enabled. These bits dene what types of authentication are
enabled to authenticate messages sent to the BMC by users of different privilege levels. The
SMU enables authentication of type straight password, MD2, MD5, and none.
• Basic mode is enabled, allowing basic serial communications to take place over the serial/
modem channel.
• Session inactivity timeout is set to one minute.
• Session termination bits are enabled to enable ending of a serial/modem session if an inactivity
timeout occurs or if DCD is lost.
• Flow control and baud rate are set for IPMI messaging (ow control is set to hardware ow
control; the baud rate is set to 19.2 kbps).
• The multiplexor that determines who controls the serial connector has various default settings
enabled and disabled.
Connection Mode
The connection mode determines the protocols used when performing IPMI messaging to the BMC.
After selecting a connection mode, clicking on the Next button displays the screen for the selected
mode.
• Direct Connect Mode: When Direct Connect Mode is selected, the client console and target
server are connected by a null modem cable attached between the serial ports of each system.
• Modem Mode: When Modem Mode is selected, the client system establishes a connection to
the target server using a modem. Each system must have a modem attached, and the user on
the client system must have the dial string for the modem connected to the target server.
Access Mode
This option is used to congure the access mode for the Serial/Modem channel. The choices are:
• Pre-boot only: The Serial/Modem channel is available only out-of-band while the machine is
powered-off and during POST until the boot process is initiated. This option is primarily used
with serial port sharing where it may be desirable to ensure that the BMC does not control
the serial port while the operating system is running. The Pre-boot only setting does not affect
Serial/Modem alerting. If alerting is enabled and software does not handle the event, the BMC
takes control of the port for the time that it takes to deliver the alert.
• Always Available: The channel is dedicated to communication with the BMC and is available
during all system states (powered-down, powered-up, pre-boot, sleep, run-time, etc.).
• Shared: Shared is the same as Always Available, but the BIOS leaves the serial port available
for software use.
• Disabled: The channel is not allowed to communicate with the BMC except for alerting.
Comentarios a estos manuales