Chassis Cooling
The fans on the GigaVUE‑TA25 run at 100% of their maximum speed on power up, then drop to approximately 60% 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 10%. An SNMP trap is sent when a component reaches the threshold for warning or critical temperature conditions. Refer to Component Temperature Thresholds and Actions for the temperatures at which the warning and critical traps are sent and any additional action that occurs at a threshold.
Table 1: Component Temperature Thresholds and Actions
|
Transceiver Temperature |
Exhaust Temperature |
CPU Temperature |
Switch CPU Temperature |
|---|---|---|---|
|
70ºC |
85ºC |
90ºC |
100ºC |
|
Warning trap sent |
Warning trap sent |
Warning trap sent |
Warning trap sent |
|
80ºC |
90ºC |
95ºC |
105ºC |
|
Alert trap sent; Transceiver power disabled |
Alert trap sent |
Alert trap sent |
Alert trap sent; Switch CPU put in reset |
|
95ºC |
95ºC |
100ºC |
110ºC |
|
Critical trap sent |
Critical trap sent |
Critical trap sent |
Critical trap sent |
The output of the following CLI command displays the current exhaust, CPU, switch CPU temperatures, intake temperature as well as the fan speed in RPM :
(config) # show environment*** Box 1 (TA25-Chassis) ***
-----------------------------------------------------------
Power Module 1 (PWR-TAX21):
12v voltage : 12.46 V
0.95v voltage : N/A
Sense voltage : N/A
-----------------------------------------------------------
Power Module 2 (PWR-TAX21):
12v voltage : 0.0 V
0.95v voltage : N/A
Sense voltage : N/A
-----------------------------------------------------------
Fan tray 1 (FAN-TAX20):
1st fan : 12061 RPM
2nd fan : 12024 RPM
-----------------------------------------------------------
Fan tray 2 (FAN-TAX20):
1st fan : 12061 RPM
2nd fan : 11951 RPM
-----------------------------------------------------------
Fan tray 3 (FAN-TAX20):
1st fan : 12024 RPM
2nd fan : 12061 RPM
-----------------------------------------------------------
Fan tray 4 (FAN-TAX20):
1st fan : 11988 RPM
2nd fan : 11951 RPM
-----------------------------------------------------------
Card 1 (TA25-C8X48):
Intake temperature : 30 C
Exhaust temperature : 24 C
CPU temperature : 28 C
Switch CPU temperature : 39 C
===========================================================
The output of the following CLI command displays the transceiver temperature:
(config) # show port params port-list 1/1/c1..c2
Parameter 1/1/c1 1/1/c2
====================== =============== ===============
Name Alias: - -
Type: network network
Admin: disabled enabled
Fec: NA cl91
Ude: N/A N/A
Link status: - up
Auto Negotiate: off off
Duplex: - full
Speed (Mbps): - 100000
MTU: 9400 9400
Force Link Up: off off
Port Relay: N/A N/A
Port Role: N/A N/A
Ingress Vlan Tag: - -
Egress Vlan Tag: none none
Buffer Index: default default
Discovery: off off
GDP: disable disable
SFP present: yes yes
SFP type: qsfp+ sr qsfp28 sr
SFP vendor name: GIGAMON QSF-502 GIGAMON Q28-502
SFP vendor PN: GMONQ85S-NGM GMONC85S-NGM
SFP vendor SN: INGBT8030260 INGBL5673819
SFP Power (1-2) (dBm): -3.66 -3.63 0.05 -0.69
SFP Power (3-4) (dBm): -40.00 -40.00 0.02 -0.48
SFP Power (5-6) (dBm): - - - -
SFP Power (7-8) (dBm): - - - -
SFP Power (9-10)(dBm): - - - -
SFP Temperature (C): 28.00 30.00
Alarm THld (H-L)(dBm): N/A N/A
Alert THld (H-L)(dBm): N/A N/A
Power THld Status: N/A N/A
Comment:
