Allied Telesis AT-S60 - Manual (Page 210)

Chapter 17: GARP VLAN Registration Protocol Commands
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Examples
The following command sets the Join Period timer to 0.1 second, Leave
Period timer to 0.35 seconds, and the LeaveAllPeriod timer to 11
seconds for all GVRP applications:
set garp=gvrp timer jointime=10 leavetime=35
leavealltime=1100
The following command sets the timers to their default values:
set garp=gvrp timer default