# Trunk VLAN Mapping (For Catalyst 4000 and 6000 devices only)

Device>Configure>Trunk VLAN Mapping

Use the Trunk VLAN Mapping dialog box to add and delete VLAN to VLAN association.

Note: For Catalyst 4000 and 6000 devices only running software image version 6.1 or later.

From VLAN (vlanTrunkMappingFromVlan)

Indicates the VLAN ID that will be mapped to the VLAN in the corresponding instance of To VLAN (vlanTrunkMappingToVlan) in the device. If mapping type is dot1qToisl, then the valid values are 1001..4095. If mapping type is reservedToNonReserved, then the valid values are 1006..1024.

To VLAN (vlanTrunkMappingToVlan)

Indicates the VLAN which the corresponding instance of From VLAN (vlanTrunkMappingFromVlan) will be mapped to. If mapping type is dot1qToisl, then the valid values are 1..1000. If mapping type is reservedToNonReserved, then the valid values are 1..1005 and 1025..4094.

For Catalyst 6000 devices only: If the MAC reduction feature is disabled, then extended VLANs cannot be used for reserverToNonreserve mapping type.

Mapping Type (vlanTrunkMappingType)

Specifies the trunk VLAN mapping type: reservedToNonReserved, dot1qToisl. If extended range VLANs exist, you cannot create dot1qToisl mapping entries.

Note: On Catalyst 4000 devices, only dot1qToisl is supported.

Operational (vlanTrunkMappingOper)

Indicates whether VLAN mapping is effective or not.

If the switch is VTP client and To VLAN does not exist, then the mapping entry will be created in a false state.

Note: Maximum number of mapping entries allowed in this table for Catalyst 4000 devices: 7. Maximum number of mapping entries allowed in this table for Catalyst 6000 devices: 8.

Click OK to continue. Click Apply to save the changes in the dialog box. Click Cancel to close the dialog box. Click Create to create a new trunk VLAN mapping. Click Delete to delete the selected trunk VLAN mapping. Click Refresh to update the contents of the dialog box. Click Print to print the contents of the dialog box. Click Help to access online help.