Temperature Log Reduction; Managing Interface Modules; Configuring Interface Module Boot Parameters - Brocade Communications Systems MLX Series Installation Manual

Managing interface modules

To display the system log, enter the show log command at any CLI level.
Brocade# show log
Syntax: show log

Temperature log reduction

Depending on settings and temperature readings, fan speeds are changed dynamically within the following ranges: low, med, med-hi, and
high. Fan speed changes are determined by temperature thresholds set for sensors on the management modules, interface modules and
switch fabric modules. When a temperature threshold is passed upward on any module, the fan speed changes to the assigned fan speed.
This occurs even if the temperature is within the threshold for the slower fan speed on other modules. In previous versions of the software,
a log message is sent whenever a temperature threshold is crossed on any module whether the fan speed is actually increased or not.
This can result in excessive log messages.
The default behavior is a for log message to be sent only when the fan speed is actually changed, which reduces the number of
messages. A CLI option allows you to log all messages or have a single log message sent when any temperature threshold is crossed.
Details about how to set temperature thresholds and default threshold values are described in the
page 221
Configuring temperature logging
The temp log-threshold command sets the temperature logging threshold to send a single message whenever any of the thresholds are
crossed.
Brocade(config) temp-log-threshold low
Syntax: temp-log-threshold [verbose | high | low | med | med-high]
•
The verbose option generates logs whenever a temperature threshold is crossed. This is the operational mode of previous
versions of Multi-Service IronWare software and provides backward compatibility.
•
The high option generates logs only when the high threshold is crossed.
•
The low option generates logs whenever any threshold (low, medium, medium-high or high) is crossed.
•
The med option generates logs only when the medium, medium-high, and high thresholds are crossed.
•
The med-high option generates logs only when the medium-high and high thresholds are crossed. This is the default setting.
This output displays two instances of a module temperature exceeding the warning threshold.
Managing interface modules

Configuring interface module boot parameters

Ethernet interface modules contain independent copies of system software and boot after the management module boots. By default, the
following boot-related events occur:
•
The router synchronizes, or prompts you to synchronize, the software image on the interface modules with the software on the
management module.
•
Interface modules boot from a source specified by the management module (the default source is a primary image in the flash
memory on the interface module.)
You can make these changes:
230
"Configuring the cooling system"
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