This read-only value indicates whether the Extended Border Node may reorder a subnetwork routing list, moving control points more likely to succeed toward the top: priority(1) allows reordering, while defined(2) requires the list to be searched in its configured order. Admins set this per-LU behavior to balance search efficiency, letting the EBN learn and prioritize successful paths, against predictability, forcing a fixed, administrator-defined search sequence. For example, setting this to defined(2) for an LU with a strict, deliberately ordered search list ensures the EBN always tries control points in exactly the configured sequence rather than reordering them based on past success.