The show environment Command
Table 5 | Cisco 3800 Series LED Indicators (continued) |
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LED |
| 3825 | 3845 | Color and State | Meaning |
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GE0: Speed | Rear | Rear | Blinking green | Blink frequency indicates port speed | |
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| 1 blink per second: 10 Mbps |
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| 2 blinks per second: 100 Mbps |
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| 3 blinks per second: 1000 Mbps |
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GE1: Link |
| Rear | Rear | Off | No link |
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| Green | Ethernet cable present, link established |
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GE1: Speed | Rear | Rear | Blinking green | Blink frequency indicates port speed | |
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| 1 blink per second: 10 Mbps |
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| 2 blinks per second: 100 Mbps |
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| 3 blinks per second: 1000 Mbps |
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PS1 |
| — | Front | Off | Power supply 1 not present |
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| Steady green | Present and enabled |
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| Amber | Present and off or malfunctioning |
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PS2 |
| — | Front | Off | Power supply 2 not present |
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| Steady green | Present and enabled |
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| Amber | Present and off or malfunctioning |
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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.
Type: AC
AUX
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
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
Troubleshooting Cisco 3800 Series Routers
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