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Dell EMC Configuration Guide for the S3100 Series 9.14.2.4

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Configure a GARP Timer

Set GARP timers to the same values on all devices that are exchanging information using GVRP.

There are three GARP timer settings.
  • Join — A GARP device reliably transmits Join messages to other devices by sending each Join message two times. To define the interval between the two sending operations of each Join message, use this parameter. The Dell EMC Networking OS default is 200ms.
  • Leave — When a GARP device expects to de-register a piece of attribute information, it sends out a Leave message and starts this timer. If a Join message does not arrive before the timer expires, the information is de-registered. The Leave timer must be greater than or equal to 3x the Join timer. The Dell EMC Networking OS default is 600ms.
  • LeaveAll — After startup, a GARP device globally starts a LeaveAll timer. After expiration of this interval, it sends out a LeaveAll message so that other GARP devices can re-register all relevant attribute information. The device then restarts the LeaveAll timer to begin a new cycle. The LeaveAll timer must be greater than or equal to 5x of the Leave timer. The Dell EMC Networking OS default is 10000ms.

Example of the garp timer Command

DellEMC(conf)#garp timer leav 1000
DellEMC(conf)#garp timers leave-all 5000
DellEMC(conf)#garp timer join 300

Verification:

DellEMC(conf)#do show garp timer
GARP Timers Value (milliseconds)
----------------------------------------
Join Timer      300
Leave Timer     1000
LeaveAll Timer  5000
DellEMC(conf)#

Dell EMC Networking OS displays this message if an attempt is made to configure an invalid GARP timer: DellEMC(conf)#garp timers join 300 % Error: Leave timer should be >= 3*Join timer.

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