Here is a key to the color codes on a Juniper SRX. You can determine what LEDs are turned on by either looking at the front panel of the SRX or doing a show chassis craft-interface command.
LEDs on front panel of an SRX
Alarm LED
| Color |
Description |
| Red steady |
critical alarm |
| Amber steady |
major alarm |
| Green |
no alarms |
| Off |
device powered off |
Status LED
| Color |
Description |
| Green steady |
normal |
| Amber steady |
startup |
| Red steady |
device failed |
| Off |
device powered off |
Power LED
| Color |
Description |
| Green steady |
normal |
| Amber steady |
device is gracefully shutting down |
| Red steady |
power supply problem |
| Off |
device powered off |
LEDs on the front panel of a Netscreen
CPU Utilization
| Color |
Description |
| Green steady |
Current level of CPU use |
| Off |
Less than 5% CPU use |
PWR LED
| Color |
Description |
| Green steady |
System is receiving power |
| Off |
Power is not on |
| Red solid |
power supply problem |
Status LED
| Color |
Description |
| Green Blinking |
System is receiving power |
|
device is gracefully shutting down |
| Red steady |
power supply problem |
| Off |
device powered off |
HA
| Color |
Description |
| Green steady |
Indicates this module is the master |
| Amber solid |
Indicates this module is a slave |
| Off |
Indicates no HA activity seen |
Alarm
| Color |
Description |
| Red solid |
indicates a critical alarm which could mean the system crash or failure |
| Red blinking |
Indicates that an alarm has been triggered |
| Amber solid |
indicates a major alarm which could be low memory |
| Off |
No alarms detected |
Flash
| Color |
Description |
| Green Solid |
Flash card is installed |
| Green blinking |
Indicates flash card activity |
| Red Blinking |
Flash is completely used or error has occurred with it |
| Off |
No flash card detected in slot |
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