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Troubleshooting

▀ Detecting Faulty Hardware

▄ ASR 5500 System Administration Guide, StarOS Release 18

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Detecting Faulty Hardware

When power is applied to the chassis, power is sequentially applied to the Management I/O (MIO/UMIO) cards, Data
Processing Cards (DPC/UDPC/DPC2/UDPC2s), Fabric and Storage Cards (FSCs), and System Status Cards (SSCs).

Each PFU and card installed in the system incorporates light emitting diodes (LEDs) that indicate its operating status.
This section describes how to use these status LEDs to verify that all of the installed components are functioning
properly.

Important:

As the system progresses through its boot process, some cards will not exhibit immediate LED

activity. Allow several minutes to elapse after a reboot is initiates before checking the LEDs on the various cards to
verify that the boot process has successfully completed.

Licensing Issues

The system boot process is governed by StarOS licenses. During the startup process, each card performs a series of
Power-On Self Tests (POSTs) to ensure that the hardware is operational. These tests also verify that the card meets all
license requirements to operate in this chassis.

Refer to Chassis Universal License Requirements in the ASR 5500 Installation Guide for additional information on the
effect licenses and card types have on the boot process.

Using the CLI to View Status LEDs

Status LEDs for all cards can be viewed via the CLI by entering the Exec mode show leds all command.

[local]host_name# show leds all

The following displays a sample of this command’s output.

The status of the two Power Filter Units (PFUs) can be viewed by entering the Exec mode show power chassis
command.