Configuring Gvrp Vlan Declarations From Blocking Ports - Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual

Configuring GVRP
Configuring GVRP Forbidden Registration
Configuring an 802.1Q trunk port in forbidden registration mode deregisters all VLANs (except
VLAN 1) and prevents any further VLAN creation or registration on the trunk port.
To configure GVRP forbidden registration on an 802.1Q trunk port, perform this task in privileged mode:
Task
Step 1 Configure forbidden registration on an 802.1Q
trunk port.
Step 2 Verify the configuration.
This example shows how to configure forbidden registration on an 802.1Q trunk port:
Console> (enable) set gvrp registration forbidden 1/1
Registrar Administrative Control set to forbidden on port 1/1.
Console> (enable)

Configuring GVRP VLAN Declarations from Blocking Ports

To prevent undesirable Spanning Tree Protocol (STP) topology reconfiguration on a port connected to
a device that does not support Per-VLAN STP+ (PVST+), configure the GVRP active applicant state on
the port. Ports in the GVRP active applicant state send GVRP VLAN declarations when they are in the
STP blocking state, which prevents the STP bridge protocol data units (BPDUs) from being pruned from
the other port.
Configuring fixed registration on the other device's port also prevents undesirable STP topology
Note
reconfiguration.
To configure an 802.1Q trunk port to send VLAN declarations when in the blocking state, perform this
task in privileged mode:
Task
Configure an 802.1Q trunk port to send VLAN
declarations when in the blocking state.
This example shows how to configure a group of 802.1Q trunk ports to send VLAN declarations when
in the blocking state:
Console> (enable) set gvrp applicant state active 4/2-3,4/9-10,4/12-24
Applicant was set to active on port(s) 4/2-3,4/9-10,4/12-24.
Console> (enable)
Use the normal keyword to return to the default state (active mode disabled).
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
17-6
Chapter 17
Command
set gvrp registration forbidden mod/port
show gvrp configuration
Command
set gvrp applicant state {normal | active}
mod/port
Configuring GVRP
78-13315-02