5-2
CRBRIM-W/T
CHAPTER 5: Troubleshooting the Hardware Configuration
When problem solving consider the following subsystems of the CRBRIM-W/T:
•
Network interfaces—The LEDs can be used to help identify a failure. For
complete information on LED indicators, refer to the section “Reading LED
Indicators.”
•
System cables—This includes all of the interface cables that connect the
CRBRIM-W/T to the network.
5.1.1 Troubleshooting the Network Interfaces and Cables
Check for the following symptoms to help isolate the problem:
•
A network interface is not recognized by the system.
-
Check the interface cable connection.
-
Check the LED that corresponds to the network interface.
•
A network interface is recognized, but it will not initialize: check the interface
cable connection.
•
System will not boot properly or constantly/intermittently reboots: suspect the
processor or software.
•
System boots, but console screen is frozen.
-
Check the external console connection.
-
Verify the console baud rate in the terminal documentation.
•
System powers on and boots with a particular interface disconnected: suspect
the network interface connection.
•
System powers on and boots with a particular cable disconnected: suspect the
cable.
5.1.2 Reading LED Indicators
Note the activity of the LEDs to judge the activity of the interfaces to which they
correspond. If an LED is not on when the interface is active and the interface is
correctly connected, a problem might be indicated. If an interface is extremely
busy, its LED will be on all the time. (See Figure 5-1.)
