Chapter 4. Managing Y-Series Ethernet Switches; Managing Temperature Settings; Using The Temperature Sensor; Displaying The Temperature - IBM 4002-Y2A Installation And User Manual

Chapter 4. Managing y-series Ethernet switches

Attention: The procedures in this chapter are for qualified users and
administrators.

Managing temperature settings

This section describes how to display temperature settings on the device and how
to change the temperature warning and shutdown levels.

Using the temperature sensor

The device ships with three built-in temperature sensors that cause the device to
generate a Syslog message and SNMP trap if the temperature exceeds a specified
warning level or shutdown level. If the device temperature exceeds the safe
threshold (shutdown level), the device will reboot.
The software reads the temperature sensors based on the device poll time, which is
by default 60 seconds. If the temperature equals or exceeds the shutdown
temperature for five consecutive polls by the software, the software will reboot the
device to prevent damage.
You can use the CLI or Web management interface to perform the following tasks:
v Display the temperature of the device
v Change the warning and shutdown temperature levels
v Change the device poll time

Displaying the temperature

By default, the software polls the temperature sensor every 60 seconds to get the
current temperature. This poll rate is controlled by the device poll time, which also
controls how often the software polls other system components.
To display the temperature of a device, enter the show chassis command at any
level of the CLI.
FCX624S Switch# show chassis
The stack unit 1 chassis info:
Power supply 1 (NA - AC - Regular) present, status ok
Power supply 2 not present
Fan ok, speed (auto): [[1]]<->2<->3
Fan speed switching temperature thresholds:
MAC 1 Temperature Readings:
CPU Temperature Readings:
Boot Prom MAC : 0012.f2d4.69c0
Management MAC: 0012.f2d4.69c0
Syntax: show chassis
© Copyright IBM Corp. 2010
1 -> 2 @ 61 deg-C
1 <- 2 @ 56 deg-C
2 -> 3 @ 67 deg-C
2 <- 3 @ 62 deg-C
Current temperature : 50.5 deg-C
Warning level.......: 80.0 deg-C
Shutdown level......: 90.0 deg-C
Current temperature : 49.0 deg-C
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