Quick Reference Guide

348 PowerConnect B-Series TI24X Configuration Guide
53-1002269-02
Configuring GVRP
12
NOTE
When all ports in a dynamically created VLAN (one learned through GVRP) leave the VLAN, the
VLAN is immediately deleted from the device's VLAN database. However, this empty VLAN is
still maintained in the GVRP database for an amount of time equal to the following.
(number-of-GVRP-enabled-up-ports) * (2 * join-timer)
While the empty VLAN is in the GVRP database, the VLAN does not appear in the show vlans
display but does still appear in the show gvrp vlan all display.
• Leaveall – The minimum interval at which GVRP sends Leaveall messages on all GVRP
interfaces. Leaveall messages ensure that the GVRP VLAN membership information is current
by aging out stale VLAN information and adding information for new VLAN memberships, if the
information is missing. A Leaveall message instructs the port to change the GVRP state for all
its VLANs to Leaving, and remove them unless a Join message is received before the Leave
timer expires. By default, you can set the Leaveall timer to a value from five times the Leave
timer – maximum value allowed by software (configurable from 300000 – 1000000 ms). The
default is 10000.
NOTE
The actual interval is a random value between the Leaveall interval and 1.5 * the Leaveall time
or the maximum Leaveall time, whichever is lower.
NOTE
You can increase the maximum configurable value of the Leaveall timer from 300000 ms up to
1000000 ms using the gvrp-max-leaveall-timer command. (Refer to “Increasing the maximum
configurable value of the Leaveall timer” on page 346.)
Timer configuration requirements
• All timer values must be in multiples of 100 ms.
• The Leave timer must be >= 3* the Join timer.
• The Leaveall timer must be >= 5* the Leave timer.
• The GVRP timers must be set to the same values on all the devices that are exchanging
information using GVRP.
Changing the Join, Leave, and Leaveall timers
The same CLI command controls changes to the Join, Leave, and Leaveall timers. To change values
to the timers, enter a command such as the following.
PowerConnect(config-gvrp)# join-timer 1000 leave-timer 3000 leaveall-timer 15000
This command changes the Join timer to 1000 ms, the Leave timer to 3000 ms, and the Leaveall
timer to 15000.
Syntax: [no] join-timer <ms> leave-timer <ms> leaveall-timer <ms>
NOTE
When you enter this command, all the running GVRP timers are canceled and restarted using the
new times specified by the command.