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Prime Infrastructure and Device Temperature

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

  • Network Management
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