Defines the TLVs groups.
A value of mandatory(1) defines LLDP mandatory TLVs group
A value of optinal(2) defines LLDP optional TLVs group
A value of medCap(3) defines LLDP MED - Capabilities group
A value of medLocation(4) defines LLDP MED - Location group
A value of medNetPolicy(5) defines LLDP MED - Network Policy group
A value of medPoe(6) defines LLDP MED - Extended Power via MDI group
A value of medInventory(7) defines LLDP MED - Inventory group
A value of Xdot3(8) defines 802.3 TLVs group
A value of Xdot1(9) defines 802.1 TLVs group