This object sets the default route preference (administrative distance) applied to routes that this VRF instance adds to the routing information base, influencing which routes are preferred when multiple sources offer the same destination. A value of -1 signals that no explicit preference has been configured for this VRF. An administrator troubleshooting why a VRF's static routes are being ignored in favor of BGP-learned routes might check or lower this preference value to make the VRF's routes take priority.