Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
149
3.22 Problems due to the redundant configuration of the NIF
3.22.1 The standby NIF cannot be switched to the active system
If a failure occurs on the active NIF in a redundant NIF configuration but the standby NIF cannot
be switched to the active system, isolate the cause of the problem according to the following table.
Table 3-79: Failure analysis method when the standby NIF cannot be switched to the active
system
3.22.2 The active NIF cannot be switched to the standby system
In a redundant NIF configuration, if an active NIF with higher priority is restored from a failure
but the current active NIF is not switched to the standby system, isolate the cause of the problem
according to the following table.
Table 3-80: Failure analysis method when the active NIF cannot be switched to the standby
system
No. Items to check Cause Action
1Use the
show nif command to
check the NIF status.
The NIF status is inactive.Use the activate nif command to
start up the NIF.
2 The NIF status is
disable.Use the power enable or no
schedule-power-control
shutdown configuration command to
start up the NIF.
No. Items to check Cause Action
1 Execute the
show
interfaces command, and
check the status of the port for
the higher priority NIF that
belongs to the redundant NIF
group.
The status of the port for the higher
priority NIF that belongs to the
redundant NIF group is not
active
up or disable.
Use the
shutdown or
schedule-power-control
shutdown configuration command for
the port not used for communication.