Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
147
3.21 Problems due to the redundant configuration of the BSU
3.21.1 BSU switchover is not possible
If the active and standby BSUs cannot be switched in a redundant BSU configuration, perform the
check procedure described below.
1. Checking the log
For details about the log, see the manual Message and Log Reference.
2. Isolating the cause of the problem by checking the operating status of BSU units
Use the
show system command to check the operating status of BSU units, and isolate the
cause of the problem according to the following table.
Table 3-78: Failure analysis method when BSU units cannot be switched
No. Operating
status of BSU
units
Cause Action
1
active (not
standby hot,
standby cold, or
standby cold2)
The number of BSU units specified by
the
redundancy max-bsu
configuration command does not
match the number of BSU units to be
used as active BSU units.
Execute the
redundancy max-bsu
configuration command to specify the number of
BSU units to be used as active BSU units.
BSU boards to be used as the standby
system have not been implemented.
Implement BSU boards.
2
fault The configuration contains a setting
that cannot be used.
Correctly set the flow distribution pattern for the
filters and QoS functionality by using the fldm
prefer configuration command.
Correctly set the distribution pattern of the
maximum number of entries per switch by using
the
fwdm prefer configuration command.
The target BSU causes the failure. Based on the log entry for the target BSU
displayed by the
show logging command, see
the manual Message and Log Reference and take
the action described in Action.
3
inactive The inactivate bsu command is
set.
Use the activate bsu command to put the
target BSU into
active, standby hot,
standby cold, or standby cold2 status.
The redundancy
bsu-load-balancing smac or
redundancy bsu-mode fixed
configuration command is set.
Delete the
redundancy
bsu-load-balancing smac and redundancy
bsu-mode fixed configuration commands, and
restart the device. For details, see the
Configuration Guide.
The target BSU is not fully inserted. Implement the BSU board correctly.
Different types of BSU units are
implemented.
Implement only one type of BSU board.
A BSU not supported in this software
version is implemented.
Check the type of the BSU board and the version
of the software, and replace the BSU board or
update the software.
A BSU not supported in the Switch is
implemented.
Replace the BSU board.