The additional type information of VLAN.vtpmanageable(0) An user defined VLAN which is manageable through VTP protocol. The value of this bit cannot be changed.internal(1) An internal VLAN created by the device. Internal VLANs cannot be created or deleted. The value of this bit cannot be changed.reserved(2) A VLAN reserved by the device. Reserved VLANs cannot be created or deleted. The value of this bit cannot be changed.rspan(3) A VLAN created to exclusively carry the traffic for a Remote Switched Port Analyzer (RSPAN). This bit can only be set or cleared during the VLAN creation. Once the VLAN is created, the value of this bit cannot be modified.dynamicGvrp(4) A VLAN dynamically created by GVRP (GARP VLAN Registration Protocol) propagation. The value of this bit cannot be changed.