This object controls creation and deletion of a line redundancy group table row; creation requires lgName, lgPrimaryLineId, and lgPrimaryWeight to be set, and deletion is blocked unless the group's admin state is down and both primary and secondary line ids are 0. Admins use this RowStatus-style object to add a new redundancy group or to safely tear one down only after it has been emptied of assigned lines. Attempting to delete a row while lgPrimaryLineId is still non-zero would be rejected by the agent.