Tech-Support - ZyXEL Communications GS1920v2 Series User Manual

67.16 Tech-Support

The Tech-Support feature is a log enhancement tool that logs useful information such as CPU utilization
history, memory and Mbuf (Memory Buffer) log and crash reports for issue analysis by customer support
should you have difficulty with your Switch. The Tech Support menu eases your effort in obtaining reports
and it is also available in CLI command by entering the "Show tech-support" command.
Click MAINTENANCE > Tech-Support to see the following screen.
Figure 324 MAINTENANCE > Tech-Support
You may need WordPad or similar software to see the log report correctly. The table below describes
the fields in the above screen.
Table 247 MAINTENANCE > Tech-Support
LABEL
CPU
Mbuf
All
Crash
Chapter 67 MAINTENANCE
DESCRIPTION
Type a number ranging from 50 to 100 in the CPU threshold box, and type another
number ranging from 5 to 60 in the seconds box then click Apply.
For example, 80 for CPU threshold and 5 for seconds means a log will be created when
CPU utilization reaches over 80% and lasts for 5 seconds.
The log report holds 7 days of CPU log data and is stored in volatile memory (RAM). The
data is lost if the Switch is turned off or in event of power outage. After 7 days, the logs
wrap around and new ones and replace the earliest ones.
The higher the CPU threshold number, the fewer logs will be created, and the less data
technical support will have to analyze and vice versa.
Type a number ranging from 50 to 100 in the Mbuf (Memory Buffer) threshold box. The
Mbuf log report is stored in flash (permanent) memory.
For example, Mbuf 50 means a log will be created when the Mbuf utilization is over 50%.
The higher the Mbuf threshold number, the fewer logs will be created, and the less data
technical support will have to analyze and vice versa.
Click Download to see all the log report and system status. This log report is stored in flash
memory. If the All log report is too large, you can download the log reports separately
below.
Click Download to see the crash log report. The log will include information of the last
crash and is stored in flash memory.
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