If any of the following conditions are true, the router logs a trap and generates a syslog error message, and it does not program the ILM and NHLFE for the prefix SID:
The received prefix SID index falls outside the locally configured SID range.
One or more resolved ECMP next-hops for a received prefix SID did not advertise SR capability sub-TLV.
The received prefix SID index falls outside the advertised SID range of one or more resolved ECMP next-hops.