CpdV2GVRPDispType is a read-write setting on the Ethernet network-facing (NNI/trunk) port that selects how GARP VLAN Registration Protocol (GVRP) control frames (MAC 01:80:C2:00:00:21) are disposed of when they reach this NE — typically processed locally, dropped, passed through untouched, or tunneled across the network via L2PT. An operator managing dynamic VLAN registration between switches would set this to pass-through so GVRP advertisements are not stripped as they cross this facility. On the network-facing trunk port linking to the next carrier NE, an administrator relying on dynamic VLAN propagation between two attached switches would pass GVRP through this facility rather than terminate it.