Chassis Cooling
The fans on the GigaVUE-TA200E run at 100% of their maximum speed on power up, then drop to approximately 40% during normal operations. The temperatures of four components: transceivers, exhaust, CPU, and switch CPU, are monitored. When a component crosses a pre-defined threshold, the fan speed is adjusted dynamically, in increments of approximately 15%.
An SNMP trap is sent when a component reaches the threshold for warning, alert, or critical temperature conditions. Refer to Table 1: Component Temperature Thresholds and Actions for the temperatures at which the warning, alert, and critical traps are sent and any additional action that occurs at a threshold.
Table 1: Component Temperature Thresholds and Actions
CPU Temperature | Switch Board 2 Temperature | Switch Board 3 Temperature |
95ºC Warning trap sent | 65ºC Warning trap sent | 40ºC Warning trap sent |
100ºC Alert trap sent | 70ºC Alert trap sent; Switch CPU put in reset | 45ºC Alert trap sent; Transceiver power disabled |
105ºC Critical trap sent | 75ºC Critical trap sent | 50ºC Critical trap sent |
The output of the following CLI command displays the current exhaust, CPU, and switch CPU temperatures, as well as the intake temperature:
gigamon-517859 # show environment
*** Box 1 (TA200E-Chassis) ***
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Fan tray 1 (TA200E-FANTRAY):
1st fan : 7629 RPM
2nd fan : 6103 RPM
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Fan tray 2 (TA200E-FANTRAY):
1st fan : 7473 RPM
2nd fan : 6103 RPM
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Fan tray 3 (TA200E-FANTRAY):
1st fan : 7473 RPM
2nd fan : 6103 RPM
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Fan tray 4 (TA200E-FANTRAY):
1st fan : 7473 RPM
2nd fan : 6103 RPM
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Card 1 (TA200E-LCC64):
CPU Card temperature : 29 C
Switch Board 1 temperature : 35 C
Switch Board 2 temperature : 39 C
Switch Board 3 temperature : 28 C
Fan Board 1 temperature : 30 C
Fan Board 2 temperature : 30 C
CPU SOC temperature : 48 C
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The GigaVUE-FM screen would display the current exhaust, CPU, switch CPU temperatures, intake temperature as well as the fan speed in RPM as shown below:
