Now that you have installed and connected the vEdge 100b router, you can monitor and troubleshoot the various LEDs and system alarms on the router.
Alarm Severity Levels
The system alarms on the vEdge 100b router have two types of severity levels:
- Major (red)—Indicates a critical situation on the router resulting from one of two conditions:
- One or more hardware components on the router has failed.
- One or more hardware components on the router has exceeded the temperature threshold.
A major alarm condition requires immediate attention. If a temperature related major alarm persists for more than five minutes, the router will shut down.
- Minor (yellow)—Indicates a warning on the router that, if left unattended, might result in an interruption in router operation or degradation in router performance. A yellow alarm condition requires further monitoring and/or maintenance.
Hardware alarms on the vEdge 100b router are predefined and are triggered by a physical condition on the router such as a power supply failure, excessive component temperature, or fan failure. The vEdge 100b router triggers the following types of hardware alarms:
- Main board temperature alarm—The main board of the router has one temperature sensing point (board sensor 0). If the temperature of the sensor location crosses the predefined threshold level, the system triggers an alarm.
- CPU temperature alarm—If the temperature of the system CPU crosses the predefined threshold level, the system triggers an alarm.
Table 1 lists the yellow and red alarm threshold for the temperature sensing points in the system—one board sensor on the board and one CPU junction temperature sensor.
Yellow Alarm (ºC)
Red Alarm (°C)
|Hardware-Enforced Safety Cut-Off (°C)|
Board sensor 0
CPU junction temperature
In the unlikely event that the temperature measured by the sensors reaches the hardware enforced cut-off limit, the router shuts down without any software intervention.
Checking Alarms and Notifications
To view the current chassis environment condition , enter the show hardware environment command at the system prompt. The system displays the power supply status, temperature sensor readings, and related alarm status if any exists.
To view the severity of active alarms, enter the show hardware alarms command at the system prompt. The system displays the alarm severity and a brief description of the cause of each active alarm.
To view temperature thresholds at which green, yellow, and red alarms are generated, enter the show hardware temperature-thresholds command at the system prompt. The system displays the alarm temperature threshold information for a specific board or all boards in the router and for the router's CPU.
To view all other events on a Viptela device, enter the show notification stream command. The system displays notifications about events that have occurred on the Viptela device.
The chassis LEDs located on the front panel of the vEdge 100b router indicate the status of the router.
If there are one or more major alarms active in the router, the Status LED is lit red. See Front and Rear Panel Components for details of the LEDs and the status they indicate.