Huawei Core Switch Temperature

Huawei core switches operate safely within 0°C to 40°C ambient temperature, with internal PCB temperatures monitored against configurable alarm thresholds.

Operating Temperature

Huawei CloudEngine series core switches, including models like the S16700, 9800, 8800, 7800, 6800, 5800, and 16800 series, are designed to operate normally in an ambient temperature range of 0°C to 40°C at altitudes up to 1800 m. For altitudes above 1800 m, the maximum allowable temperature decreases by 1°C for every 220 m increase in altitude . These values refer to the ambient temperature, not the internal PCB temperature near high-power chips, which is monitored separately .

Internal Temperature Monitoring

Huawei switches provide detailed temperature monitoring through command outputs. Key fields include:

• Status: Indicates the current temperature status (normal, warning, or critical)
• Current: Shows the real-time temperature of the PCB or module
• Major: Upper threshold for a major temperature alarm
• Fatal: Upper threshold for a fatal temperature alarm Default alarm thresholds are typically set at 80°C for major alarms and 90°C for fatal alarms, but these can be configured according to operational requirements . If the displayed temperature does not exceed the alarm threshold, the switch is considered to be operating normally without risk of overheating .

Best Practices

• Ensure proper airflow: Maintain adequate spacing around the switch and avoid obstructing fan modules.
• Monitor temperature regularly: Use Huawei's monitoring commands or network management tools to track PCB and module temperatures.
• Adjust thresholds if necessary: For high-altitude deployments or environments with higher ambient temperatures, configure alarm thresholds to prevent false alarms while ensuring safety.
• Redundancy and cooling: Core switches like the S16700 series include redundant fan and power modules to maintain stable operation under varying thermal conditions . By following these guidelines, Huawei core switches can maintain reliable performance while preventing thermal-related failures.