You create an extended-range VLAN in global configuration mode by entering the vlan global configuration command with a VLAN
ID from 1006 to 4094. The extended-range VLAN has the default Ethernet VLAN characteristics and the MTU size. See the description
of the vlan global configuration command in the command reference for the default settings of all parameters. In VTP version
1 or 2, if you enter an extended-range VLAN ID when the switch is not in VTP transparent mode, an error message is generated
when you exit VLAN configuration mode, and the extended-range VLAN is not created.
In VTP version 1 and 2, extended-range VLANs are not saved in the VLAN database; they are saved in the switch running configuration
file. You can save the extended-range VLAN configuration in the switch startup configuration file by using the copy running-config
startup-config privileged EXEC command. VTP version 3 saves extended-range VLANs in the VLAN database.