The type of this trunk VLAN mapping.
reservedToNonReserved(1)
An user defined association which maps a
reserved VLAN to a non-reserved VLAN.
dot1qToisl(2)
An user defined association which maps a VLAN
in 802.1q trunk to a VLAN in ISL trunk.
Implementations are allowed to restrict the
available types for this object.
For devices which support the range of VlanIndex
between 1024 and 4095, the default value is
reservedToNonReserved(1). The default value is
dot1qToisl(2) for devices which do not support the
range of VlanIndex between 1024 and 4095.