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
CommentIndicationSTAT LED statePWR LED State
Permanent Amber/Off indicates
FPGA configuration failure.
Power in the system is all right and FPGA
configuration is taking place.
OffAmber
System is in unresponsive state.
No console messages.
FPGA Image Validation Error.RedAmber
—Upgrade FPGA image error, continuing with Golden
FPGA image.
AmberFlashing 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.
OffFlashing Amber and Green
alternatively
System is in unresponsive state.
No console messages.
Digital code signing reported failure in ROMMON
image validation.
RedFlashing Amber and Green
alternatively
Both LEDs turn Green once
provisioning is complete.
ZTP process has begun.Flashing AmberGreen
IOS-XE image is booting.OffGreen
—Successfully booted and system is operating
normally.
GreenGreen
—A minor alarm or synchronization is in Holdover or
free-running mode
AmberGreen
—A major or critical alarm (high temperature reported
for any sensor) or multiple fan failure.
RedGreen
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
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