PWR and STAT LEDs
The PWR and STAT LEDs are available on the front panel. These LEDs provide power on the board (PWR)
and overall router health (STAT) status. During power up state, these LEDs provide booting status and report
errors.
The digital code signing functionality validates the integrity and authenticity of the ROMMON image before
booting it.
Note
Table 15: PWR and STAT LED Indications
Comment
Indication
STAT LED state
PWR LED State
Permanent Amber/Off indicates
FPGA configuration failure.
Power in the system is all right and FPGA
configuration is taking place.
Off
Amber
System is in unresponsive state.
No console messages.
FPGA Image Validation Error.
Red
Amber
—
Upgrade FPGA image error, continuing with Golden
FPGA image.
Amber
Flashing Amber and Green
alternatively
—
FPGA configuration successful and Digital code
signing successfully validated FPGA image. Digital
code signing passed the control to Microloader to
boot ROMMON.
Off
Flashing Amber and Green
alternatively
System is in unresponsive state.
No console messages.
Digital code signing reported failure in ROMMON
image validation.
Red
Flashing Amber and Green
alternatively
Both LEDs turn Green once
provisioning is complete.
ZTP process has begun.
Flashing Amber
Green
IOS-XE image is booting.
Off
Green
—
Successfully booted and system is operating
normally.
Green
Green
—
A minor alarm or synchronization is in Holdover or
free-running mode
Amber
Green
—
A major or critical alarm (high temperature reported
for any sensor) or multiple fan failure.
Red
Green
CPU Management Port LEDs
The LED for the 10/100/1000 Management port is integrated on the connector itself. There are two LEDs in
the connector—the LED on the left indicates the Link/Activity status and the LED on the right indicates the
duplex status of the link.
Cisco ASR-920-20SZ-M Aggregation Services Router Hardware Installation Guide
70
Troubleshooting Aids
PWR and STAT LEDs
