Configuring Garp Timers - 3Com 4500G Family Configuration Manual

To do...
Enter Ethernet
interface view,
Layer 2
aggregate
interface view,
or port-group
view
Enable GVRP on the port or port
group
Configure the GVRP registration
mode on the port or port group
GVRP can be configured only on trunk ports.
GVRP is mutually exclusive with service loopback.
In an MSTP network, GVRP can run on only the CIST. In addition, blocked ports on the CIST
cannot receive/send GVRP packets.
If both GVRP and remote port mirroring are used, GVRP may register the remote probe VLAN to
unexpected ports, resulting in undesired duplicates to be received by the monitor port. For more
information about port mirroring, refer to Port Mirroring Configuration in the Access Volume.
Enabling GVRP on a Layer 2 aggregate interface enables both the aggregate interface and all
selected member ports in the corresponding link aggregation group to participate in dynamic VLAN
registration and deregistration.
On a GVRP-enabled trunk port, you need to configure the port trunk permit vlan all command on
the port to ensure that the traffic of all dynamically registered VLANs can pass through the port.

Configuring GARP Timers

Among the four GARP timers, the LeaveAll timer is configured in system view and takes effect on all
ports, while the other three are configured on a port basis.
Follow these steps to configure GARP timers:
To do...
Enter system view
Configure the GARP LeaveAll
timer
Enter Ethernet
interface view or interface interface-type
Layer 2 aggregate interface-number
interface view
Enter port-group port-group manual
view port-group-name
gvrp
gvrp registration { fixed |
forbidden | normal }
Use the command...
system-view
garp timer leaveall
timer-value
Use the command...
1-5
Remarks
Required
Perform either of the
commands.
Required
Disabled by default.
Optional
The default is normal.
Remarks
––
Optional
The default is 1000
centiseconds.