Cisco Cisco NetFlow Generation Appliance (NGA) 3340 安装指南

 provides troubleshooting tips for possible appliance subsystem problems.

The power LED on the front 
panel is not on.

Is the AC power cord connected properly? If the power LED is still off, the problem might 

be a power supply failure.

The appliance shuts down after 
being on for only a short time.

Check for an environmentally 
induced shutdown (see the 

Check the fans. If the fans are not 
working, the appliance will overheat 
and shut itself down.

Ensure that the appliance intake and 
exhaust vents are clear.

If the fans are not working, you might need 
to check the power supply connections to 
the fans.

Check the environmental site requirements 
in the 

.

The appliance partially boots, 
but the LEDs do not light.

Check for a power supply failure by 
inspecting the power LED on the front 
panel of the appliance. If the LED is on, 
the power supply is functional.

If the LED is off, refer to the Cisco Information 
Packet for warranty information or contact your 
customer service representative.

Power supply shuts down or 
latches off.

Check to see if the fan has failed, the air 
conditioning in the room has failed or 
airflow is blocked to cooling vents.

Take steps to correct the problem. For 
information about environmental operating 
conditions, see the User Guide.

Adapter card is not recognized 
by the appliance.

Make sure that the adapter card is 
firmly seated in its slot. 

Check the LEDs on the adapter card. 
Each adapter card has its own set of 
LEDs. For information on these 
LEDs, see the 

.

Make sure that you have a version of 
software that supports the adapter 
card. 

For information, see the documentation that 
was included with your adapter card.

Adapter card is recognized, but 
interface ports do not initialize.

Make sure that the adapter card is 
firmly seated in its slot. 

Check external cable connections.

Make sure that you have a version of 
software that supports the adapter 
card. Refer to the documentation that 
was included with your adapter card.

For information, see the documentation that 
was included with your adapter card.

The appliance does not boot 
properly, or it constantly or 
intermittently reboots.

Make sure that the adapter card is 
firmly seated in its slot. 

Check the appliance chassis or the 
application software. 

For information, see the documentation 
that was included with your adapter card.

For warranty information, see the Cisco 
Information Packet publication that 
shipped with your appliance or contact 
your customer service representative.