Related Documentation
Monitor Redundant SCG Status
To monitor the redundant SCG status:
- Monitor the Redundant SCG Environmental Status
- Display the Redundant SCG LED States at the Command Line
- View the Redundant SCG LEDs
Monitor the Redundant SCG Environmental Status
Purpose
To isolate problems in the redundant SCG by checking the environmental status.
Action
To check the redundant SCG environment status, use the following command:
Sample Output
t320@host> show chassis environment
Class Item Status Measurement
Power PEM 0 Absent
PEM 1 OK
Temp SCG 0 OK 30 degrees C / 86 degrees F
SCG 1 OK 29 degrees C / 84 degrees F
[...Output truncated...]
Meaning
The command output displays the status and temperature for each SCG.
If there is a problem with the SCG status, you can display more detailed SCG environmental information with the following command:
The command output is as follows:
t320@host> show chassis environment scg
SCG 0 status:
State Online - Master clock
Temperature 30 degrees C / 86 degrees F
Power:
GROUND 0 mV
3.3 V 3317 mV
5.0 V 5072 mV
5.6 V 5697 mV
1.8 V bias 1794 mV
3.3 V bias 3304 mV
5.0 V bias 4991 mV
8.0 V bias 7318 mV
BUS Revision 40
SCG 1 status:
State Online - Standby
Temperature 29 degrees C / 84 degrees F
Power:
GROUND 0 mV
3.3 V 3318 mV
5.0 V 5084 mV
5.6 V 5704 mV
1.8 V bias 1782 mV
3.3 V bias 3286 mV
5.0 V bias 5003 mV
8.0 V bias 7323 mV
BUS Revision 40
The command output displays the status for each SCG slot 0 and 1. The operating status can be Present, Online, Offline, or Empty. If Online, it can be the clock source (Master clock) or backup (Standby). As shown in the output, the redundant SCG is SCG1, with a status of Standby. The command output displays the temperature of the air flowing past the SCG. The command output also displays information about the SCG power supplies and the SCG circuitry revision level.
Display the Redundant SCG LED States at the Command Line
Purpose
To use the command line and determine the details of the redundant SCG LED states.
Action
To display the redundant SCG LED states, use the following command:
Sample Output
t320@host> show chassis craft-interface [...Output truncated...] SCG LEDs: SCG 0 1 -------------- Amber . . Green * * Blue * . [...Output truncated...]
Meaning
The command output displays the SCG LED status. The router has two SCGs installed. Asterisks (*) indicate the operation status. The color represents the possible SCG operating states: Amber (Fail), Green (OK), and Blue (Master). Both SCGs are functioning properly (Green). The SCG in slot 0 is operating as master; the SCG in slot 1 is the backup.
View the Redundant SCG LEDs
Purpose
To view the redundant SCG LEDs on the SCG faceplate.
Action
To view the redundant SCG LEDs, remove the rear component cover and look on the SCG faceplate at the rear of the router chassis.Table 1 describes the functions of these LEDs.
Table 1: SCG LEDs
Label | Color | State | Description |
|---|---|---|---|
OK | Green | On steadily | SCG is online and is functioning normally. |
FAIL | Amber | On steadily | SCG has failed. |
MASTER | Blue | On steadily | SCG is functioning as master. |
