This enables MLPPP hash-based link selection for non-best-effort traffic, choosing a consistent member link for a given traffic flow based on a hash rather than round-robin distribution; a change takes effect on the next link restart. Admins enable it to keep a given flow's packets on one member link, avoiding reordering for latency-sensitive classes. For example, enabling this can prevent out-of-order delivery for a prioritized traffic class riding a multilink bundle.