Administrator Guide

Based on the conguration in the following example, the interface 1/21 is not removed from VLAN 34 or VLAN 35 despite receiving a
GVRP Leave message. Additionally, the interface is not dynamically added to VLAN 45 or VLAN 46, even if a GVRP Join message is
received.
Example of the gvrp registration Command
Dell(conf-if-te-1/21)#gvrp registration fixed 34,35
Dell(conf-if-te-1/21)#gvrp registration forbidden 45,46
Dell(conf-if-te-1/21)#show conf
!
interface TenGigabitEthernet 1/21
no ip address
switchport
gvrp enable
gvrp registration fixed 34-35
gvrp registration forbidden 45-46
no shutdown
Dell(conf-if-te-1/21)#
Congure 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 dene the
interval between the two sending operations of each Join message, use this parameter. The 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 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 default is 10000ms.
Example of the garp timer Command
Dell(conf)#garp timer leav 1000
Dell(conf)#garp timers leave-all 5000
Dell(conf)#garp timer join 300
Verification:
Dell(conf)#do show garp timer
GARP Timers Value (milliseconds)
----------------------------------------
Join Timer 300
Leave Timer 1000
LeaveAll Timer 5000
Dell(conf)#
The system displays this message if an attempt is made to congure an invalid GARP timer: Dell(conf)#garp timers join 300 %
Error: Leave timer should be >= 3*Join timer
.
GARP VLAN Registration Protocol (GVRP)
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