Table 1
Cisco 3800 Series LED Indicators (continued)
LED
3825
3845
GE0: Speed
Rear
Rear
GE1: Link
Rear
Rear
GE1: Speed
Rear
Rear
PS1
—
Front
PS2
—
Front
The show environment Command
The show environment command can help you monitor and troubleshoot router power and ventilation
status.
This is an example of the output of the show environment command for a Cisco 3825 router with an AC
power supply and no Redundant Power System:
Router# show environment
Redundant Power System is not present.
SYS PS1 is present.
AUX (-48V) PS1 is absent.
Fan 1 Normal
Fan 2 Normal
Fan 3 Normal
Fan Speed is Normal
Alert settings:
Intake temperature warning: Enabled, Threshold: 50
Core temperature warning: Enabled, Threshold: 70 (CPU: 95)
Board Temperature: Normal
Internal-ambient temperature = 29, Normal
CPU temperature = 46, Normal
Intake temperature = 31, Normal
Voltage 1(3300) is Normal, Current voltage = 3316 mV
Voltage 2(5150) is Normal, Current voltage = 5210 mV
Voltage 3(2500) is Normal, Current voltage = 2525 mV
Voltage 4(1200) is Normal, Current voltage = 1191 mV
OL-5972-01
Color and State Meaning
Blinking green Blink frequency indicates port speed
Off
Green
Blinking green Blink frequency indicates port speed
Off
Steady green
Amber
Off
Steady green
Amber
Type: AC
1 blink per second: 10 Mbps
2 blinks per second: 100 Mbps
3 blinks per second: 1000 Mbps
No link
Ethernet cable present, link established
1 blink per second: 10 Mbps
2 blinks per second: 100 Mbps
3 blinks per second: 1000 Mbps
Power supply 1 not present
Present and enabled
Present and off or malfunctioning
Power supply 2 not present
Present and enabled
Present and off or malfunctioning
Troubleshooting Cisco 3800 Series Routers
The show environment Command
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