This is the standard SNMP RowStatus governing creation, activation, or deletion of this line profile's row; the description is only the placeholder 'Description.', so this reading follows from the RowStatus textual convention. As with the DBA profile's RowStatus, a line profile typically needs its FEC, encryption, and DBA-binding columns set while notInService before being flipped to active(1), and, following the same pattern seen with DBA profiles, should not be destroyed while its bind or LLID count is still nonzero. Setting this to createAndGo(4) attempts to create and immediately activate a new line profile in one step, which fails if any required column hasn't been supplied first.