Identifying Startup Problems

Cisco AS5800 Universal Access Server Hardware Installation Guide5-4

Figure5-1 Troubleshooting Strategy for Startup Problems

Identifying Startup Problems

Hardware startup problems are commonly traced to cabling proble ms or inc orrectl y inst alle d powe r

supplies or cards. In rare cases, problems are caused by part failures.

When you start up a Cisco AS5800 for the first time, you should observe the startup sequence,

described in the following sections. This chapter des cribes the normal st artup se quence for the router

shelf and the dial shelf and the steps to take if the system does not perform that sequence as expected.

In most cases, LEDs indicate system states in the startup sequence. By checking the se LE Ds, you

can determine when and where the system failed. Use the following descriptions to is olate the

problem to a subsystem, then proceed to the appropriate sections to try to resolve the problem.

Turn on
system power
Troubleshoot
power
subsystem
Troubleshoot
cooling
subsystem
Reseat I/O
controller
and restart
Reseat
NPE-G1
and restart
System
startup
successful
Reseat port
adapters
and restart
Obtain
technical
assistance
DC OK
LED on
?
Fans
operating
?
Fans
operating
?
I/O
controller
LEDs
OK?
Port
adapter
enabled
LEDs on
?
H6595
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Check system
state with I/O
controller LEDs
Check system
state with port
adapter LEDs
DC OK
LED on
?
I/O
controller
LEDs
OK?
NPE-G1
LEDs
OK?
No
No
No
Port
adapter
enabled
LEDs on
?
or or