Technical data

Configuring GARP/GVRP 55
Note that the value of the join timer should be no less than twice the value of the
hold timer, and the value of the leave timer should be greater than twice the value
of the join timer and smaller than the leaveall timer value. Otherwise, the system
displays an error message.
Join timer > 2 x hold timer
Leave timer > 2 x join timer AND < leavall timer
GARP timers have the following default values:
■ Hold timer — 10 centiseconds
■ Join timer — 20 centiseconds,
■ Leave timer — 60 centiseconds
■ Leaveall timer — 1000 centiseconds.
Displaying and Debugging GARP
After you configure the GARP timer, execute the display command in all views to
display the GARP configuration, and to verify the effect of the configuration.
Execute the reset command in user view to reset the GARP configuration.
Execute the debugging command in user view to debug the GARP configuration.
Configuring GVRP GARP VLAN Registration Protocol (GVRP) is a GARP application. GVRP is based on
the GARP, and maintains the dynamic VLAN registration information in the switch
and distributes the information to other switches. All the GVRP-supporting
switches can receive VLAN registration information from other switches and can
dynamically update local VLAN registration information, including the active
members and the port through which each member can be reached.
All the switches that support GVRP can distribute their local VLAN registration
information to other switches so that VLAN information is consistent on all GVRP
devices in the same network. The VLAN registration information that is distributed
by GVRP includes both the local static registration information that is configured
manually and the dynamic registration information from other switches.
GVRP is described in the IEEE 802.1Q standard. The Switch 7700 fully supports
GARP compliant with the IEEE standards.
GVRP configuration steps include tasks described in the following sections:
■ Enabling or Disabling Global GVRP
Table 12 Display and Debug GARP
Operation Command
Display GARP statistics information display garp statistics [ interface interface-list ]
Display GARP timer display garp timer [ interface interface-list ]
Reset GARP statistics information reset garp statistics [ interface interface-list ]
Enable GARP event debugging debugging garp event
Disable GARP event debugging undo debugging garp event