Managing the Chassis and Modules
December 2008
© 2008 Foundry Networks, Inc.
5 - 13
For information about checking the current settings of the low and high temperature thresholds for modules and
fan speeds, see “Displaying Temperature Thresholds for Thermal Planes and Fan Speeds” on page 5-17.
Command Syntax (Pre-03.0.00)
NOTE:
This section applies to the FSX running pre-release 03.0.00 software. For releases 03.0.00 and later,
see “Command Syntax (Release 03.0.00 and Later)” on page 5-16.
If desired, you can change the default low and high temperature thresholds for a particular thermal plane and fan
speed. For example, to change the low and high thresholds of the medium fan speed for the management
module(s) to 56
°
C and 72
°
C, respectively, enter the following command at the global CONFIG level of the CLI:
FastIron(config)# fan-threshold mp speed-3 56 72
Syntax:
fan-threshold <module> [speed-1 <high-threshold>] [speed-2 <low-threshold> <high-threshold>] [speed-
3 <low-threshold> <high-threshold>] [speed-4 <low-threshold> <high-threshold>] [speed-5 <low-threshold>
<high-threshold>]
For the <module> parameter, you can specify the following:
•
lp – Changes low and high temperature thresholds for the Interface modules.
•
mp – Changes low and high temperature thresholds for the management module.
•
sfp – (FSX 800 and FSX 1600 only) Changes low and high temperature thresholds for the switch fabric
modules.
The fan speeds are as follows:
•
speed-1 – low
•
speed-2 – medium-low
•
speed-3 – medium
•
speed-4 – medium-high
•
speed-5 – high
For the <low-threshold> and <high-threshold> parameters, you can specify any temperature in Centigrade.
However, when changing low and high temperature thresholds for a module’s fan speeds, remember that the low
temperature threshold of a higher fan speed must be lower than the high temperature threshold of the lower fan
speed. Foundry establishes this guideline to ensure the fan speed stability.
Switch Fabric Cards Thermal Plane
5
High
60
°
C
90
°
C
4
Medium-high
50
°
C
65
°
C
3
Medium
35
°
C
55
°
C
2
Medium-low
25
°
C
40
°
C
1
Low
N/A
30
°
C
Table 5.3: Default Low and High Temperature Thresholds for Thermal Planes
and Fan Speeds on the FSX 1600
Fan
Speed
Description
Low Temperature
Threshold
High Temperature
Threshold
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