Installation Guide

Table Of Contents
TABLE 43 Temperature threshold information for modules and fan speeds (continued)
This eld... Displays...
Fan Speed Low or Med or Med-Hi or Hi The current setting of the low and high temperature thresholds for the low,
medium, medium-high, and high fan speeds.
NOTE
As indicated in Table 44, the low fan speed for each module
does not have a default low temperature threshold value, nor
can you congure this value. The "-1" value that appears in the
Fan Speed Low eld for each module is a Extreme internal
value only.
State = 0 (FAN_STATE_LOW) For Extreme internal use only.
max_ts_shut_o_count For Extreme internal use only.
shut_o_count = 0 0 0 0 0 0 0 0 For Extreme internal use only.
When syslog messages display a change in fan speed, you can identify which sensors triggered the change by checking show chassis
and show fan-threshold command output and looking for sensors with temperatures near threshold boundaries. The following table lists
the associations between the show chassis , show fan-threshold , and fan-threshold commands .
NOTE
A "thermal block" refers to the group of high and low thresholds for all fan speed levels.
TABLE 44 Associations between show chassis, show fan threshold, and fan-threshold commands
show chassis command output (sensors) show fan-threshold command output (thermal
block)
fan-threshold command conguration
MP, SFM, and hSFM Modules
Active Management 1st reading THERMAL_SENSOR_TEST_RULE_MP fan-threshold mp
Active Management 2nd reading THERMAL_SENSOR_TEST_RULE_MP_CPU fan-threshold mp-cpu
Standby Management 1st reading THERMAL_SENSOR_TEST_RULE_STANDBY
_MP
fan-threshold mp
Standby Management 2nd reading THERMAL_SENSOR_TEST_RULE_STANDBY
_MP_CPU
fan-threshold mp-cpu
SFM FE1 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
SFM FE2 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
SFM FE3 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
hSFM FE1 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
hSFM FE2 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
hSFM FE3 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
LP Modules (1 or 2 Trac Managers)
LP Sensor 1 reading (TM 0) THERMAL_SENSOR_TEST_RULE_LP fan-threshold lp
LP Sensor 2 reading (TM 0) THERMAL_SENSOR_TEST_RULE_LP_XPP N/A (Must not be changed)
LP Sensor 3 reading (TM 1) THERMAL_SENSOR_TEST_RULE_LP fan-threshold lp
LP Sensor 4 reading (TM 1) THERMAL_SENSOR_TEST_RULE_LP_XPP N/A (Must not be changed)
NI-MLX-10Gx8-M LP Modules
LP2 Sensor 1 reading THERMAL_SENSOR_TEST_RULE_LP_2 fan-threshold lp2
LP2 Sensor 2 reading THERMAL_SENSOR_TEST_RULE_LP_XPP2 N/A (Must not be changed)
LP2 Sensor 3 reading UNUSED UNUSED
LP2 Sensor 4 reading THERMAL_SENSOR_TEST_RULE_LP_2 fan-threshold lp2
Managing the cooling system
Extreme Routing MLX Series Hardware Installation Guide
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