L2SWで温度が高い時　

　
初めてファンスピードがHIGH、温度がYELLOWになっているのを見ました。空気の流れが悪いようです。　
1#show env all
SYSTEM FAN SPEED is HIGH
SYSTEM TEMPERATURE is Critical
System Temperature Value: 69 Degree Celsius
System Temperature State: YELLOW
Yellow Threshold : 60 Degree Celsius
Red Threshold : 80 Degree Celsius
System Power Supply Status:
PID: Built-in
System Power:(Watts) 525
Max Power Usage:(Watts) 457
Maximum Heat Dissipation: (Watts) 87
PoE Power extract:(Watts) 370
Power Supply Status: Good