Hi,
I have two questions to PIs device temperature monitoring.
1) We have some stacked switches and some switches in a VSS. Also we have some switches with multiple temperature sensors. For example here the output of a C4506-E with a SUP7.
#show env temp
Module Sensor Temperature Status
------+--------------------------+--------------------+------------
1 Stub A 37C (58C,71C,74C) ok
1 Stub B 29C (54C,68C,71C) ok
1 XPP 44C (67C,81C,84C) ok
1 VFE 54C (79C,90C,93C) ok
1 NFE 46C (68C,80C,83C) ok
1 CPU 50C (69C,83C,86C) ok
1 FPGA 34C (57C,71C,74C) ok
2 Air inlet 33C (56C,68C,71C) ok
2 Air inlet remote 26C (46C,59C,62C) ok
2 Air outlet 33C (66C,76C,79C) ok
2 Air outlet remote 29C (60C,71C,74C) ok
3 Air inlet 31C (56C,68C,71C) ok
3 Air inlet remote 25C (46C,59C,62C) ok
3 Air outlet 32C (66C,76C,79C) ok
3 Air outlet remote 28C (60C,71C,74C) ok
4 Air inlet 30C (56C,68C,71C) ok
4 Air inlet remote 23C (46C,59C,62C) ok
4 Air outlet 31C (66C,76C,79C) ok
4 Air outlet remote 27C (60C,71C,74C) ok
5 Air inlet 30C (56C,68C,71C) ok
5 Air inlet remote 23C (46C,59C,62C) ok
5 Air outlet 31C (66C,76C,79C) ok
5 Air outlet remote 26C (60C,71C,74C) ok
6 Air inlet 32C (56C,68C,71C) ok
6 Air inlet remote 24C (46C,59C,62C) ok
6 Air outlet 32C (66C,76C,79C) ok
6 Air outlet remote 28C (60C,71C,74C) ok
PI shows only one temperature value per device. So what represents the one value if the device is a stack, VSS or/and has multiple temperature sensors?
I checked PIs SNMP requests to one of our C4506-E with SUP7. PI requested all SNMP values under entSensorValue (1.3.6.1.4.1.9.9.91.1.1.1.1.4), entSensorStatus.15 (1.3.6.1.4.1.9.9.91.1.1.1.1.5.15), ciscoEnvMonTemperatureStatusEntry.3 (1.3.6.1.4.1.9.9.13.1.3.1.3) and ciscoEnvMonTemperatureStatusEntry.4.1 (1.3.6.1.4.1.9.9.13.1.3.1.4.1). So, PI gets all temperature values, but displays only one.
2) Does PI generate a critical alarm if the temperature of one device exceeds its temperature threshold? I tried to test it with a C3750E by configuring
(config)#system env temperature threshold yellow 25
With this configuration, the switchs system temperature state was Yellow.
#show env temp status
System Temperature Value: 41 Degree Celsius
System Temperature State: YELLOW
Yellow Threshold : 34 Degree Celsius
Red Threshold : 59 Degree Celsius
However, the switch did not send a SNMP trap to PI. Also, PI did not recorgnizes a problem by its own. At least it did not generate an event for this.
If PI do not care about temperture thresholds, I can configure a Threshold monitoring in the Design > Monitor Configuration menu, but I don't know which thresholds I should configure, because it depends on the temperature PI displays (question 1).
Hope someone can help me here.
Timo
