Extreme Networks ExtremeWare XOS 11.3, Руководство пользователя

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Managing the ExtremeWare XOS Software
ExtremeWare XOS 11.3 Concepts Guide
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The current memory statistics for the individual process also includes the following:
●
The module (MSM A or MSM B) and the slot number of the MSM (modular switches only).
●
The name of the process.
You can also use the
show memory {slot [a | b]}
command to view the system memory and the
memory used by the individual processes, even for all processes on all MSMs installed in modular
switches. The
slot
parameter is available only on modular switches.
In general, the
free
memory count for an MSM or Summit X450 switch decreases when one or more
running processes experiences an increase in memory usage. If you have not made any system
configuration changes, and you observe a continued decrease in free memory, this might indicate a
memory leak.
The information from these commands may be useful for your technical support representative if you
experience a problem.
Monitoring CPU Utilization
You can monitor the CPU utilization and history for all of the processes running on the switch. By
viewing this history on a regular basis, you can see trends emerging and identify processes with peak
utilization. Monitoring the workload of the CPU allows you to troubleshoot and identify suspect
processes before they become a problem. By default, the switch monitors CPU utilization every 20
seconds. In addition, if CPU utilization of a process exceeds 60% of the regular operating basis, the
switch logs an error message specifying the process name and the current CPU utilization for the
process.
Disabling CPU Monitoring
To disable CPU monitoring, use the following command:
disable cpu-monitoring
This command disables CPU monitoring on the switch; however, it does not clear the monitoring
interval. Therefore, if you altered the monitoring interval, this command does not return the monitoring
interval to 20 seconds. The next time you enable CPU monitoring, the switch uses the existing
configured interval.
Enabling CPU Monitoring
To enable CPU monitoring, use the following command:
enable cpu-monitoring {interval <seconds>} {threshold <percent>}
Where the following is true:
●
seconds
—Specifies the monitoring interval. The default interval is 20 seconds, and the range is 5 to
60 seconds. Extreme Networks recommends the default setting for most network environments. If
you enter a number lower than 20 seconds, CPU utilization may increase.
●
threshold
—Specifies the CPU threshold value. CPU usage is measured in percentages. The default
is 60%, and the range is 0% to 100%.