Allied Telesis AT-S21 - Manual (Page 56)

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4-2
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Menu: Administration>Activity Monitor
The Activity Monitor option is useful in troubleshooting or in
monitoring switch activity, if any.
The activity monitor automatically activates when you download
software to switches on the network (
System
administration>Broadcast updated software to
all systems
).
Figure 4-1 shows another switch activity displayed by the monitor,
that is, the results of ping commands issued from the switch.
Figure 4-1 Activity Monitor