If you think you are experiencing high temperature problems on a specific module or the chassis itself ,this command can help you to identify the minimum and maximum threshold values for temperatures.
Not all the times is what it looks like.
In this case for example, the end user wasn’t getting logs regarding temperature problems but he thought the values for the supervisors were kind of high.
Example:
The Catalyst 6500 series switches are equipped with internal air temperature sensors that are triggered at 104°F (40°C) generating a minor alarm and at 131°F (55°C) generating a major alarm. (The whole module)
When the temperature reaches about 60-65 degree Celsius, the switch can be shutdown automatically in order to prevent further hardware damage.
Threshold values cannot be modified on the chassis, and are set automatically to prevent damages.
According to this he saw the supervisor modules VS-SUP2T-10G a bit high and started to worry:
module 5 outlet temperature: 39C
module 5 inlet temperature: 22C
module 5 device-1 temperature: 37C
module 5 device-2 temperature: 35C
module 5 asic-1 temperature: 51C
module 5 asic-2 temperature: 37C
module 5 asic-4 temperature: 51C
module 5 asic-5 temperature: 47C
module 5 asic-7 temperature: 47C
module 5 asic-8 temperature: 54C
module 5 RP outlet temperature: 36C
module 5 RP inlet temperature: 33C
module 5 RP device-1 temperature: 46C
module 5 EARL outlet temperature: 36C
module 5 EARL inlet temperature: 21C
module 5 EARL device-1 temperature: 66C
module 5 EARL device-2 temperature: 67C
Here is the reason why it was not placed on a minor or major alarm.
ASIC, EARL, RP tests are the fabric ASICs on the module, and these temperatures are internal to the ASIC and are therefore expected to be much higher than the inlet and outlet temperatures measured on the surface of the Supervisor main board.
By checking the command below you will be able to see the exact temperature and thresholds for each ASIC.
Depending on how high they go the module will be placed into minor or major alarm.
show environment alarm thresholds
module 5 RP outlet temperature: 32C
threshold #1 for module 5 RP outlet temperature:
(sensor value >= 60C) is system minor alarm
threshold #2 for module 5 RP outlet temperature:
(sensor value >= 75C) is system major alarm
module 5 RP inlet temperature: 29C
threshold #1 for module 5 RP inlet temperature:
(sensor value >= 70C) is system minor alarm
threshold #2 for module 5 RP inlet temperature:
(sensor value >= 85C) is system major alarm
module 5 RP device-1 temperature: 42C
threshold #1 for module 5 RP device-1 temperature:
(sensor value >= 90C) is system minor alarm
threshold #2 for module 5 RP device-1 temperature:
(sensor value >= 105C) is system major alarm
module 5 EARL outlet temperature: 32C
threshold #1 for module 5 EARL outlet temperature:
(sensor value >= 65C) is system minor alarm
threshold #2 for module 5 EARL outlet temperature:
(sensor value >= 80C) is system major alarm
module 5 EARL inlet temperature: 21C
threshold #1 for module 5 EARL inlet temperature:
(sensor value >= 50C) is system minor alarm
threshold #2 for module 5 EARL inlet temperature:
(sensor value >= 65C) is system major alarm
module 5 EARL device-1 temperature: 62C
threshold #1 for module 5 EARL device-1 temperature:
(sensor value >= 110C) is system minor alarm
threshold #2 for module 5 EARL device-1 temperature:
(sensor value >= 125C) is system major alarm
module 5 EARL device-2 temperature: 62C
threshold #1 for module 5 EARL device-2 temperature:
(sensor value >= 110C) is system minor alarm
threshold #2 for module 5 EARL device-2 temperature:
(sensor value >= 125C) is system major alarm
At the end, temperature was great.
