Layer 2 Switching Commands 461
User Guidelines
This command is available in Ethernet interface configuration mode and port
channel interface configuration mode. An Access port cannot join
dynamically to a VLAN because it is always a member of only one VLAN.
Membership in untagged VLAN would be propagated in a same way as a
tagged VLAN. In such cases it is the administrator’s responsibility to set the
PVID to be the untagged VLAN VID.
Example
The following example enables GVRP on Gigabit Ethernet 1/0/8.
console(config)#interface gigabitethernet 1/0/8
console(config-if-Gi1/0/8)#gvrp enable
gvrp registration-forbid
Use the gvrp registration-forbid command in Interface Configuration mode
to deregister all VLANs on a port and prevent any dynamic registration on the
port. To allow dynamic registering for VLANs on a port, use the no form of
this command.
Syntax
gvrp registration-forbid
no gvrp registration-forbid
Default Configuration
Dynamic registering and deregistering for each VLAN on the port is not
forbidden.
Command Mode
Interface Configuration (gigabitethernet, port-channel, tengigabitethernet,
fortygigabitethernet) mode
User Guidelines
This command is available in Ethernet interface configuration mode and port
channel interface configuration mode.
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